1:1000 Basic Mapping System

Other Metadata formats: - [Traditional FGDC Format]

Frequently anticipated questions:

What does this data set describe?

Title: 1:1000 Basic Mapping System
Abstract:
The Survey and Mapping Office of the Lands Department, Hong Kong Special Administrative Region began to set up its Land Information System (LIS) in 1989. The system now comprises three subsystems namely Basic Mapping System (BMS), Cadastral Information System (CIS) and Geographic Information Retrieval System (GIRS). These mapping information was converted from the original 1:1000 scale survey sheets and is being continuously up-dated. The digital map features are separately coded thereby enabling selective retrieval and display.
  1. How should this data set be cited?

    Land Information Centre, Survey and Mapping Office, Lands Department, the Government of the Hong Kong Special Administrative Region (HKSAR), 201603, 1:1000 Basic Mapping System: B1000 B1000, Survey and Mapping Office, Lands Department, the Government of the HKSAR, Hong Kong Special Administrative Region.

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: 113.825
    East_Bounding_Coordinate: 114.408
    North_Bounding_Coordinate: 22.572
    South_Bounding_Coordinate: 22.138

  3. What does it look like?

  4. Does the data set describe conditions during a particular time period?

    Beginning_Date: 1990
    Ending_Date: Apr-2007
    Currentness_Reference: Revision date

  5. What is the general form of this data set?

    Geospatial_Data_Presentation_Form: Vector digital data

  6. How does the data set represent geographic features?

    1. How are geographic features stored in the data set?

      This is a Vector data set. It contains the following vector data types (SDTS terminology):

      • Entity point (694005)
      • Complete chain (5456586)
      • GT-polygon composed of chains (445064)

    2. What coordinate system is used to represent geographic features?

      The map projection used is Transverse_Mercator.

      Projection parameters:
      False_Easting: 836694.05
      False_Northing: 819069.80
      Latitude_of_Projection_Origin: 22.3121333
      Longitude_of_Central_Meridian: 114.1785554
      Scale_Factor_at_Central_Meridian: 1.0

      Planar coordinates are encoded using distance and bearing
      Planar coordinates are specified using distance and bearing values. Resolution of distance values: 1
      Resolution of bearing values: 0.0002778
      Bearing is specified in units of Degrees and decimal minutes
      Bearing is measured North
      Bearing is measured from the Magnetic meridian
      Planar coordinates are specified in Millimeters

      The horizontal datum used is Hong Kong 1980 Geodetic Datum.
      The ellipsoid used is International Hayford (1910).
      The semi-major axis of the ellipsoid used is 6378388.
      The flattening of the ellipsoid used is 1/297.0.

  7. How does the data set describe geographic features?

    BDYFEAT.AAT
    Arc Attribute Table of BDYFEAT (Source: ARC/INFO)

    TYPE
    Boundary line feature type (Source: SMO)

    ValueDefinition
    CUCultivation bund
    FFence
    GAGate
    WHFree standing wall in tenement block
    WLFree standing wall

    PREC
    A precision code to denote the level of positional accuracy. The code ranges from 1 to 9, with 1 considered to be the most accurate and 9 to be the least. The level of accuracy refers to the method of data collection or data source used for conversion. (Source: SMO)

    ValueDefinition
    1Title survey
    2Topographic survey
    3Topographic survey by GPS
    41:1000 photogrammetric plot
    51:1000 survey sheet (converted by SMO)
    61:1000 survey sheet (converted by contractor)
    71:1200 survey sheet
    81:5000 survey sheet
    9Estimation or proposal

    DISP
    Each feature is given a display status which ranges from 0 to 27 and 99. If two features appear at the same location, dominant feature will be displayed. When a feature is displayed in its defaulted symbology, its display status is 0. (Source: SMO)

    Range of values
    Minimum:0
    Maximum:99

    BENCH.PAT
    Point Attribute Table of BENCH (Source: ARC/INFO)

    BM_NO
    Unique number assigned to each bench mark (Source: SMO)

    ValueDefinition
    Integer 

    BM_NORTH
    Northing location of the bench mark in metres (Source: SMO)

    Range of values
    Minimum:800000.0
    Maximum:848000.0

    BM_EAST
    Easting location of the bench mark in metres (Source: SMO)

    Range of values
    Minimum:800000.0
    Maximum:867500.0

    BM_REDUCLEV
    Reduced level (height) of each bench mark in metres (Source: SMO)

    Range of values
    Minimum:0.0000
    Maximum:999.9999

    BM_MARK
    A description of the bench mark type (Source: SMO)

    ValueDefinition
    Character 

    BLDGPOLY.AAT
    Arc Attribute Table of BLDGPOLY (Source: ARC/INFO)

    TYPE
    Building polygon feature type (Source: SMO)

    ValueDefinition
    BPBuilding block outline
    BAPBuilding outline suppressed for annotation
    BUPBuilding outline under elevated structures
    IBPImaginary building subdivision line (Precision=9)
    OSPOpen-sided structure outline
    PWPParty wall / Building subdivision line
    TSPTemporary structure outline

    PREC
    A precision code to denote the level of positional accuracy. The code ranges from 1 to 9, with 1 considered to be the most accurate and 9 to be the least. The level of accuracy refers to the method of data collection or data source used for conversion. (Source: SMO)

    ValueDefinition
    1Title survey
    2Topographic survey
    3Topographic survey by GPS
    41:1000 photogrammetric plot
    51:1000 survey sheet (converted by SMO)
    61:1000 survey sheet (converted by contractor)
    71:1200 survey sheet
    81:5000 survey sheet
    9Estimation or proposal

    DISP
    Each feature is given a display status which ranges from 0 to 27 and 99. If two features appear at the same location, dominant feature will be displayed. When a feature is displayed in its defaulted symbology, its display status is 0. (Source: SMO)

    Range of values
    Minimum:0
    Maximum:99

    BLDGPOLY.PAT
    Polygon Attribute Table of BLDGPOLY (Source: ARC/INFO)

    GEO_REFNO
    This is an unique identifier formed by concatenating the Easting(x) and Northing(y) coordinates of the label point inside a building polygon. Before concatenation, all decimals of the x-y coordinates are trimmed off and their preceding figures '8' are removed. Thus, the 'GRO_REFNO' of a label point of coordinate: '813579.85...E; 824680.12...N' would become '1357924680'. (Source: SMO)

    Range of values
    Minimum:0000000000
    Maximum:6750048000

    POLY_TYPE
    This is a code showing the layer which the label belongs to. It is generated by the system automatically. It should be "T" in this layer. (Source: SMO)

    ValueDefinition
    TBuilding Polygon

    CREATE_DATE
    This is the date when the label is created. It is generated by the system automatically. (Source: SMO)

    ValueDefinition
    MM/DD/YYYYMonth/Day/Year

    BLDG_TOP
    Approximate level of the top of a building in metres above Hong Kong Principal Datum (Source: SMO)

    ValueDefinition
    Real number 

    BLDG_BASE
    Approximate level of the base of a building in metres above Hong Kong Principal Datum (Source: SMO)

    ValueDefinition
    Real number 

    Z_PREC_TOP
    A precision code to denote the level of height accuracy. It refers to the value in the BLDG_TOP item. The code ranges from 1 to 5 and 9, with 1 considered to be the most accurate and 9 to be the least. The level of accuracy refers to the method of data collection. (Source: SMO)

    ValueDefinition
    1Precise leveling
    2Ordinary leveling
    3Trigonometrical heighting or GPS
    4Photorammetry
    5External sources
    63D project
    9Estimation (by no. of storeys)

    Z_PREC_BASE
    A precision code to denote the level of height accuracy. It refers to the value in the BLDG_BASE item. The code ranges from 1 to 5 and 9, with 1 considered to be the most accurate and 9 to be the least. The level of accuracy refers to the method of data collection. (Source: SMO)

    ValueDefinition
    1Precise leveling
    2Ordinary leveling
    3Trigonometrical heighting or GPS
    4Photorammetry
    5External sources
    63D project
    9Estimation (by no. of storeys)

    CSU_CAT
    This is a number showing the building's CSU Category (Common Spatial Unit Category) in DAM (Data Alignment Measures). (Source: SMO)

    ValueDefinition
    0Buildings pending for further classification by other departments (default value)
    1Legal private buildings / Housing Authority (HA) or Housing Society (HS) buildings under jurisdiction of the Buildings Ordinance / Home Ownership Scheme (HOS) buildings developed under the Private Sector Participation Scheme (PSPS) / HS buildings which require occupation permit and are under the jurisdiction of the Buildings Ordinance
    2New Territories small Houses
    3HA's public housing estates / HOS estates except those developed under PSPS
    4Government owned properties
    5Temporary structures / open-sided structures with address or building name

    BLDG_EAST
    The Easting part of the Geographic Reference Number (Source: SMO)

    ValueDefinition
    IntegerIt is a redefined item

    BLDG_NORTH
    The Northing part of the Geographic Reference Number (Source: SMO)

    ValueDefinition
    IntegerIt is a redefined item

    BLDG_CSUID
    This is a unique identifier known as Building CSU-ID (Common Spatial Unit ID) in DAM (Data Alignment Measures). It is formed by concatenating the values of GEO_REFNO, POLY_TYPE and CREATE_DATE. (Source: SMO)

    ValueDefinition
    CharacterIt is a redefined item

    BLDGPOLY.TATBLDGPOLY_CH
    Annotation Attribute Table of BLDGPOLY for Chinese annotation (Source: ARC/INFO)

    GEO_REFNO
    This is an unique identifier formed by concatenating the Easting(x) and Northing(y) coordinates of the label point inside a building polygon. Before concatenation, all decimals of the x-y coordinates are trimmed off and their preceding figures '8' are removed. Thus, the 'GRO_REFNO' of a label point of coordinate: '813579.85...E; 824680.12...N' would become '1357924680'. (Source: SMO)

    Range of values
    Minimum:0000000000
    Maximum:6750048000

    DISP
    The value of display status (Source: SMO)

    ValueDefinition
    0Shown
    1Hidden

    BLDGPOLY.TATBLDGPOLY_ENG
    Annotation Attribute Table of BLDGPOLY for English annotation (Source: ARC/INFO)

    GEO_REFNO
    This is an unique identifier formed by concatenating the Easting(x) and Northing(y) coordinates of the label point inside a building polygon. Before concatenation, all decimals of the x-y coordinates are trimmed off and their preceding figures '8' are removed. Thus, the 'GRO_REFNO' of a label point of coordinate: '813579.85...E; 824680.12...N' would become '1357924680'. (Source: SMO)

    Range of values
    Minimum:0000000000
    Maximum:6750048000

    DISP
    The value of display status (Source: SMO)

    ValueDefinition
    0Shown
    1Hidden

    CONTOUR.AAT
    Arc Attribute Table of CONTOUR (Source: ARC/INFO)

    CON_HT
    The reduced level above Hong Kong Principle Datum of the contour in meters (Source: SMO)

    ValueDefinition
    Real number 

    CON_ST
    The status of each contour (Source: SMO)

    ValueDefinition
    CISIndex contour line
    CIUIndex contour line (uncertain)
    CNSContour line
    CNUContour line (uncertain)

    DISP
    Each feature is given a display status which ranges from 0 to 27 and 99. If two features appear at the same location, dominant feature will be displayed. When a feature is displayed in its defaulted symbology, its display status is 0. (Source: SMO)

    Range of values
    Minimum:0
    Maximum:99

    GENANNO.PAT
    The general annotation layer includes 10 levels of annotation that are not associated with any particular layers in the BMS system. These levels include both English and Chinese annotation for topographic and hydrographic place names, town/ district/ village/ estate names, miscellaneous annotations/ abbreviations/ symbols. (Source: ARC/INFO)

    GEODETIC.PAT
    Point Attribute Table of GEODETIC (Source: ARC/INFO)

    GEO_TYPE
    Type of the station (Source: SMO)

    ValueDefinition
    1Main trigonometric station
    2Minor trigonometric station
    3Traverse station

    GEO_NO
    Unique number assigned to each control station (Source: SMO)

    ValueDefinition
    Character 

    GEO_NORTH
    Northing location of the control station in metres (Source: SMO)

    Range of values
    Minimum:0.000
    Maximum:848000.000

    GEO_EAST
    Easting location of the control station in metres (Source: SMO)

    Range of values
    Minimum:0.000
    Maximum:867500.000

    GEO_ZVALUE
    The Z value of each control station in metres (Source: SMO)

    Range of values
    Minimum:0.0
    Maximum:99999.0

    GEO_DNORTH
    Accuracy of the control station's northing location in metres (Source: SMO)

    Range of values

    GEO_DEAST
    Accuracy of the control station's easting location in metres (Source: SMO)

    Range of values

    GEO_MARK
    A description of the control station (mark) type (Source: SMO)

    ValueDefinition
    Character 

    MISCLINE.AAT
    Arc Attribute Table of MISCLINE (Source: ARC/INFO)

    TYPE
    Miscellaneous line feature type (Source: SMO)

    ValueDefinition
    CHLChimney
    FIRCulvert / Large grave / Pipeline / Large shrine / Tank / Unclassified firm line features
    FRBFiring range boundary / Rifle range boundary
    NBNoise barrier
    PECArchway / Unclassified pecked line features
    PWLPowerline
    PYLarge pylon
    WIPWorks in progress

    PREC
    A precision code to denote the level of positional accuracy. The code ranges from 1 to 9 with 1 considered to be the most accurate and 9 to be the least. The level of accuracy refers to the method of data collection or data source used for conversion. (Source: SMO)

    ValueDefinition
    1Title survey
    2Topographic survey
    3Topographic survey by GPS
    41:1000 photogrammetric plot
    51:1000 survey sheet (converted by SMO)
    61:1000 survey sheet (converted by contractor)
    71:1200 survey sheet
    81:5000 survey sheet
    9Estimation or proposal

    DISP
    Each feature is given a display status which ranges from 0 to 27 and 99. If two features appear at the same location, dominant feature will be displayed. When a feature is displayed in its defaulted symbology, its display status is 0. (Source: SMO)

    Range of values
    Minimum:0
    Maximum:99

    MISCPT.PAT
    Point Attribute Table of MISCPT (Source: ARC/INFO)

    TYPE
    Miscellaneous points feature type (Source: SMO)

    ValueDefinition
    BEABeacon / Light
    CEMCemetery
    DOTUnclassified dot feature
    GVSSmall grave
    MAMarsh / Swamp
    MNMangrove
    MOMonument / Cenotaph / Obelisk / Sculpture / Statue
    MTEMTR access / LR platform
    OVTOld and valuable tree
    RARestricted access
    SHSSmall shrine
    TETree
    URSSmall burial urn
    VBVehicular barrier
    WWell

    ANGLE
    Orientation of the marker symbol to the nearest degree (Source: SMO)

    ValueDefinition
    Real number 

    PREC
    A precision code to denote the level of positional accuracy. The code ranges from 1 to 9, with 1 considered to be the most accurate and 9 to be the least. The level of accuracy refers to the method of data collection or data source used for conversion. (Source: SMO)

    ValueDefinition
    1Title survey
    2Topographic survey
    3Topographic survey by GPS
    41:1000 photogrammetric plot
    51:1000 survey sheet (converted by SMO)
    61:1000 survey sheet (converted by contractor)
    71:1200 survey sheet
    81:5000 survey sheet
    9Estimation or proposal

    DISP
    Each feature is given a display status which ranges from 0 to 27 and 99. If two features appear at the same location, dominant feature will be displayed. When a feature is displayed in its defaulted symbology, its display status is 0. (Source: SMO)

    Range of values
    Minimum:0
    Maximum:99

    OVD-ID
    OVT ID is the OVT Register ID assigned by Leisure & Cultural Service Department (Source: SMO)

    ValueDefinition
    Character 

    PODPOLY.AAT
    Arc Attribute Table of PODPOLY (Source: ARC/INFO)

    TYPE
    Podium polygon feature type (Source: SMO)

    ValueDefinition
    PDPPodium outline
    PUPPodium outline under elevated structures
    IPPImaginary podium outline

    PREC
    A precision code to denote the level of positional accuracy. The code ranges from 1 to 9, with 1 considered to be the most accurate and 9 to be the least. The level of accuracy refers to the method of data collection or data source used for conversion. (Source: SMO)

    ValueDefinition
    1Title survey
    2Topographic survey
    3Topographic survey by GPS
    41:1000 photogrammetric plot
    51:1000 survey sheet (converted by SMO)
    61:1000 survey sheet (converted by contractor)
    71:1200 survey sheet
    81:5000 survey sheet
    9Estimation or proposal

    DISP
    Each feature is given a display status which ranges from 0 to 27 and 99. If two features appear at the same location, dominant feature will be displayed. When a feature is displayed in its defaulted symbology, its display status is 0. (Source: SMO)

    Range of values
    Minimum:0
    Maximum:99

    PODPOLY.PAT
    Polygon Attribute Table of PODPOLY (Source: ARC/INFO)

    GEO_REFNO
    This is an unique identifier formed by concatenating the Easting(x) and Northing(y) coordinates of the label point inside a podium polygon. Before concatenation, all decimals of the x-y coordinates are trimmed off and their preceding figures '8' are removed. Thus, the 'GRO_REFNO' of a label point of coordinate: '813579.85...E; 824680.12...N' would become '1357924680'. (Source: SMO)

    Range of values
    Minimum:0000000000
    Maximum:6750048000

    POLY_TYPE
    This is a code showing the layer which the label belongs to. It is generated by the system automatically. It should be "P" in this layer. (Source: SMO)

    ValueDefinition
    PPodium Polygon

    CREATE_DATE
    This is the date when the label is created. It is generated by the system automatically. (Source: SMO)

    ValueDefinition
    MM/DD/YYYYMonth/Day/Year

    PODIUM_TOP
    Approximate level of the top of a podium in metres above Hong Kong Principal Datum (Source: SMO)

    ValueDefinition
    Real number 

    Z_PREC_TOP
    A precision code to denote the level of height accuracy. It refers to the value in the PODIUM_TOP item. The code ranges from 1 to 5 and 9, with 1 considered to be the most accurate and 9 to be the least. The level of accuracy refers to the method of data collection. (Source: SMO)

    ValueDefinition
    1Precise leveling
    2Ordinary leveling
    3Trigonometrical heighting or GPS
    4Photorammetry
    5External sources
    63D project
    9Estimation (by no. of storeys)

    CERTAINTY
    This is an indicator which shows the certainty of the podium polygon (Source: SMO)

    ValueDefinition
    YTYPE of all surrounding arcs are not IPP, i.e. the entire podium outline is well defined and surveyable
    NAny one or more arcs is/are IPP

    CSU_CAT
    This is a number showing the podium's CSU Category (Common Spatial Unit Category) in DAM (Data Alignment Measures). (Source: SMO)

    ValueDefinition
    0Podiums pending for further classification by other departments (default value)
    1Podiums of legal private buildings / Housing Authority (HA) or Housing Society (HS) buildings under jurisdiction of the Buildings Ordinance / Home Ownership Scheme (HOS) buildings developed under the Private Sector Participation Scheme (PSPS) / HS buildings which require occupation permit and are under the jurisdiction of the Buildings Ordinance
    3Podiums in HA's public housing estates / HOS estates not developed under PSPS
    4Podiums in Government owned properties

    PD_EAST
    The Easting part of the Geographic Reference Number (Source: SMO)

    ValueDefinition
    IntegerIt is a redefined item

    PD_NORTH
    The Northing part of the Geographic Reference Number (Source: SMO)

    ValueDefinition
    IntegerIt is a redefined item

    BLDG_CSUID
    This is a unique identifier known as Building CSU-ID (Common Spatial Unit ID) in DAM (Data Alignment Measures). It is formed by concatenating the values of GEO_REFNO, POLY_TYPE and CREATE_DATE. (Source: SMO)

    ValueDefinition
    CharacterIt is a redefined item

    PODPOLY.TATPODPOLY_CH
    Annotation Attribute Table of PODPOLY for Chinese annotation (Source: ARC/INFO)

    GEO_REFNO
    This is an unique identifier formed by concatenating the Easting(x) and Northing(y) coordinates of the label point inside a podium polygon. Before concatenation, all decimals of the x-y coordinates are trimmed off and their preceding figures '8' are removed. Thus, the 'GRO_REFNO' of a label point of coordinate: '813579.85...E; 824680.12...N' would become '1357924680'. (Source: SMO)

    Range of values
    Minimum:0000000000
    Maximum:6750048000

    DISP
    The value of display status (Source: SMO)

    ValueDefinition
    0Shown
    1Hidden

    PODPOLY.TATPODPOLY_ENG
    Annotation Attribute Table of PODPOLY for English annotation (Source: ARC/INFO)

    GEO_REFNO
    This is an unique identifier formed by concatenating the Easting(x) and Northing(y) coordinates of the label point inside a podium polygon. Before concatenation, all decimals of the x-y coordinates are trimmed off and their preceding figures '8' are removed. Thus, the 'GRO_REFNO' of a label point of coordinate: '813579.85...E; 824680.12...N' would become '1357924680'. (Source: SMO)

    Range of values
    Minimum:0000000000
    Maximum:6750048000

    DISP
    The value of display status (Source: SMO)

    ValueDefinition
    0Shown
    1Hidden

    POLYFEAT.PAT
    Polygon Attribute Table of POLYFEAT (Source: ARC/INFO)

    TYPE
    Polyfeat polygon feature type (Source: SMO)

    ValueDefinition
    SANBeach / Sand

    RAIL.AAT
    Arc Attribute Table of RAIL (Source: ARC/INFO)

    TYPE
    Rail line feature type (Source: SMO)

    ValueDefinition
    LRLight Rail Transit
    MTRMass Transit Railway
    PTPeak Tramway
    TWTramway

    PREC
    A precision code to denote the level of positional accuracy. The code ranges from 1 to 9, with 1 considered to be the most accurate and 9 to be the least. The level of accuracy refers to the method of data collection or data source used for conversion. (Source: SMO)

    ValueDefinition
    1Title survey
    2Topographic survey
    3Topographic survey by GPS
    41:1000 photogrammetric plot
    51:1000 survey sheet (converted by SMO)
    61:1000 survey sheet (converted by contractor)
    71:1200 survey sheet
    81:5000 survey sheet
    9Estimation or proposal

    DISP
    Each feature is given a display status which ranges from 0 to 27 and 99. If two features appear at the same location, dominant feature will be displayed. When a feature is displayed in its defaulted symbology, its display status is 0. (Source: SMO)

    Range of values
    Minimum:0
    Maximum:99

    RELIEF.AAT
    Arc Attribute Table of RELIEF (Source: ARC/INFO)

    TYPE
    Relief and hydrology line feature type (Source: SMO)

    ValueDefinition
    BOBoulder / Rock
    CLCliff / Waterfall / Top limit of Quarry
    CWCatchwater
    DAFlow direction arrow
    HWHigh water mark / Lower limit of nullah side wall
    POPond / Pool / Fountain / Reservoir / Service Reservoir (open) / Moat / Swimming pool
    QBBottom limit of Quarry
    RKARocky area / Group of boulders / Flat rock
    RVRiver / Nullah / Canal bank
    RVRRocky stream bed
    SBSlope bottom (when there are no other ground features to delimit)
    SRSmall river / Stream / Drain (shown with single line)
    STSlope top (when there are no other ground features to delimit)
    SWSeawall
    VCVertical cutting / Retaining wall / Artifical slope with depth < 1.5 metres

    PREC
    A precision code to denote the level of positional accuracy. The code ranges from 1 to 9, with 1 considered to be the most accurate and 9 to be the least. The level of accuracy refers to the method of data collection or data source used for conversion. (Source: SMO)

    ValueDefinition
    1Title survey
    2Topographic survey
    3Topographic survey by GPS
    41:1000 photogrammetric plot
    51:1000 survey sheet (converted by SMO)
    61:1000 survey sheet (converted by contractor)
    71:1200 survey sheet
    81:5000 survey sheet
    9Estimation or proposal

    DISP
    Each feature is given a display status which ranges from 0 to 27 and 99. If two features appear at the same location, dominant feature will be displayed. When a feature is displayed in its defaulted symbology, its display status is 0. (Source: SMO)

    Range of values
    Minimum:0
    Maximum:99

    ROAD.AAT
    Arc Attribute Table of ROAD (Source: ARC/INFO)

    TYPE
    Road line feature type (Source: SMO)

    ValueDefinition
    CWYCovered walkway
    FBRFootbridge (over road / water) / Elevated walkway
    FBUFootbridge under elevated structures
    FPFootbridge, 0.5-1.5 metres wide
    FPWFootbridge, >1.5 metres wide
    FYFlyover / Elevated road / Bridge for vehicles or railway
    FYUFlyover under another flyover or other elevated structures
    PAPavement (including bicycle track)
    PAUPavement under elevated structures
    RMRoad margin
    RMURoad margin under elevated structures
    STPStep
    SWYPedestrian subway
    TCTrack
    TURTunnel for vehicles or railway, including cross-harbour tunnel

    PREC
    A precision code to denote the level of positional accuracy. The code ranges from 1 to 9, with 1 considered to be the most accurate and 9 to be the least. The level of accuracy refers to the method of data collection or data source used for conversion. (Source: SMO)

    ValueDefinition
    1Title survey
    2Topographic survey
    3Topographic survey by GPS
    41:1000 photogrammetric plot
    51:1000 survey sheet (converted by SMO)
    61:1000 survey sheet (converted by contractor)
    71:1200 survey sheet
    81:5000 survey sheet
    9Estimation or proposal

    DISP
    Each feature is given a display status which ranges from 0 to 27 and 99. If two features appear at the same location, dominant feature will be displayed. When a feature is displayed in its defaulted symbology, its display status is 0. (Source: SMO)

    Range of values
    Minimum:0
    Maximum:99

    ROAD.TATROAD_CH
    Annotation Attribute Table of ROAD for Chinese annotation (Source: ARC/INFO)

    ST_CODE
    This is a unique code assigned by LIC for a particular street (Source: SMO)

    Formal codeset
    Codeset Name:Street_code
    Codeset Source:LIC

    DISP
    The value of display status (Source: SMO)

    ValueDefinition
    0Shown
    1Hidden

    ROAD.TATROAD_ENG
    Annotation Attribute Table of ROAD for English annotation (Source: ARC/INFO)

    ST_CODE
    This is a unique code assigned by LIC for a particular street (Source: SMO)

    Formal codeset
    Codeset Name:Street_code
    Codeset Source:LIC

    DISP
    The value of display status (Source: SMO)

    ValueDefinition
    0Shown
    1Hidden

    SLOPE.PAT
    Slope symbol is stored as an annotation text font (Source: ARC/INFO)

    SPOTHT.PAT
    Point Attribute Table of SPOTHT (Source: ARC/INFO)

    SPOT_HT
    Spot height to the nearest one decimal place in metres (Source: SMO)

    ValueDefinition
    Real number 

    SPOT_POS
    Position to place the height value on the map related to the point (Source: SMO)

    ValueDefinition
    1Upper left
    2Upper right
    3Lower right
    4Lower left

    DISP
    Each feature is given a display status which ranges from 0 to 27 and 99. If two features appear at the same location, dominant feature will be displayed. When a feature is displayed in its defaulted symbology, its display status is 0. (Source: SMO)

    Range of values
    Minimum:0
    Maximum:99

    SP_TYPE
    Spot Height point feature type (Source: SMO)

    ValueDefinition
    GSpot height which depicts Ground level, including level of road, pavement, etc.
    ESpot height which depicts top level of Elevated structure, such as the top of a podium, rather than the level on ground.

    Z_PREC
    A precision code to denote the level of height accuracy. It refers to the value in the SPOT_HT item. The code ranges from 1 to 5 and 9, with 1 considered to be the most accurate and 9 to be the least. The level of accuracy refers to the method of data collection. (Source: SMO)

    ValueDefinition
    1Precise leveling
    2Ordinary leveling
    3Trigonometrical heighting or GPS
    4Photorammetry
    5External sources
    63D project
    9Estimation (by no. of storeys)

    UTILPT.PAT
    Point Attribute Table of UTILPT (Source: ARC/INFO)

    TYPE
    Utility point feature type (Source: SMO)

    ValueDefinition
    EPElectric pole
    ETPElectric transformer (pole)
    FHFire hydrant (fresh water)
    LPLamp post
    SFHFire hydrant (salt water)

    ANGLE
    Orientation of the marker symbol to the nearest degree (Source: SMO)

    ValueDefinition
    Real number 

    PREC
    A precision code to denote the level of positional accuracy. The code ranges from 1 to 9, with 1 considered to be the most accurate and 9 to be the least. The level of accuracy refers to the method of data collection or data source used for conversion. (Source: SMO)

    ValueDefinition
    1Title survey
    2Topographic survey
    3Topographic survey by GPS
    41:1000 photogrammetric plot
    51:1000 survey sheet (converted by SMO)
    61:1000 survey sheet (converted by contractor)
    71:1200 survey sheet
    81:5000 survey sheet
    9Estimation or proposal

    DISP
    Each feature is given a display status which ranges from 0 to 27 and 99. If two features appear at the same location, dominant feature will be displayed. When a feature is displayed in its defaulted symbology, its display status is 0. (Source: SMO)

    Range of values
    Minimum:0
    Maximum:99

    NUMBER1
    This is the reference number painted on the utility feature, if any. (Source: SMO)

    ValueDefinition
    Character 

    NUMBER2
    This is the alias reference number painted on the utility feature, if any. (Source: SMO)

    ValueDefinition
    Character 

    NUMBER3
    This is another alias reference number painted on the utility feature, if any. (Source: SMO)

    ValueDefinition
    Character 

    BLDG.AAT
    Arc Attribute Table of BLDG (Source: ARC/INFO)

    TYPE
    Building related line feature type (Source: SMO)

    ValueDefinition
    CACanopy / Balcony
    OSDiagonal lines of open-sided structure / Open-sided structure overlapping with BP/PDP/TSP
    PDLInternal lines demarcating different levels inside a podium
    PVPavilion
    RPRailway Station Platform
    RPURailway Station Platform under elevated structures
    RURuin
    TSTemporary structure overlapping with BP/PDP

    PREC
    A precision code to denote the level of positional accuracy. The code ranges from 1 to 9, with 1 considered to be the most accurate and 9 to be the least. The level of accuracy refers to the method of data collection or data source used for conversion. (Source: SMO)

    ValueDefinition
    1Title survey
    2Topographic survey
    3Topographic survey by GPS
    41:1000 photogrammetric plot
    51:1000 survey sheet (converted by SMO)
    61:1000 survey sheet (converted by contractor)
    71:1200 survey sheet
    81:5000 survey sheet
    9Estimation or proposal

    DISP
    Each feature is given a display status which ranges from 0 to 27 and 99. If two features appear at the same location, dominant feature will be displayed. When a feature is displayed in its defaulted symbology, its display status is 0. (Source: SMO)

    Range of values
    Minimum:0
    Maximum:99

    DBLDGPOLY.AAT
    Arc Attribute Table of DBLDGPOLY (Source: ARC/INFO)

    TYPE
    Building polygon feature type (Source: SMO)

    ValueDefinition
    BPBuilding block outline
    BAPBuilding outline suppressed for annotation
    BUPBuilding outline under elevated structures
    IBPImaginary building subdivision line (Precision=9)
    OSPOpen-sided structure outline
    PWPParty wall / Building subdivision line
    TSPTemporary structure outline

    PREC
    A precision code to denote the level of positional accuracy. The code ranges from 1 to 9, with 1 considered to be the most accurate and 9 to be the least. The level of accuracy refers to the method of data collection or data source used for conversion. (Source: SMO)

    ValueDefinition
    1Title survey
    2Topographic survey
    3Topographic survey by GPS
    41:1000 photogrammetric plot
    51:1000 survey sheet (converted by SMO)
    61:1000 survey sheet (converted by contractor)
    71:1200 survey sheet
    81:5000 survey sheet
    9Estimation or proposal

    DISP
    Each feature is given a display status which ranges from 0 to 27 and 99. If two features appear at the same location, dominant feature will be displayed. When a feature is displayed in its defaulted symbology, its display status is 0. (Source: SMO)

    Range of values
    Minimum:0
    Maximum:99

    DBLDGPOLY.PAT
    Polygon Attribute Table of DBLDGPOLY (Source: ARC/INFO)

    GEO_REFNO
    This is an unique identifier formed by concatenating the Easting(x) and Northing(y) coordinates of the label point inside a building polygon. Before concatenation, all decimals of the x-y coordinates are trimmed off and their preceding figures '8' are removed. Thus, the 'GRO_REFNO' of a label point of coordinate: '813579.85...E; 824680.12...N' would become '1357924680'. (Source: SMO)

    Range of values
    Minimum:0000000000
    Maximum:6750048000

    POLY_TYPE
    This is a code showing the layer which the label belongs to. It is generated by the system automatically. It should be "T" in this layer. (Source: SMO)

    ValueDefinition
    TBuilding Polygon

    CREATE_DATE
    This is the date when the label is created. It is generated by the system automatically. (Source: SMO)

    ValueDefinition
    MM/DD/YYYYMonth/Day/Year

    BLDG_TOP
    Approximate level of the top of a demolished building in metres above Hong Kong Principal Datum (Source: SMO)

    ValueDefinition
    Real number 

    BLDG_BASE
    Approximate level of the base of a demolished building in metres above Hong Kong Principal Datum (Source: SMO)

    ValueDefinition
    Real number 

    Z_PREC_TOP
    A precision code to denote the level of height accuracy. It refers to the value in the BLDG_TOP item. The code ranges from 1 to 5 and 9, with 1 considered to be the most accurate and 9 to be the least. The level of accuracy refers to the method of data collection. (Source: SMO)

    ValueDefinition
    1Precise leveling
    2Ordinary leveling
    3Trigonometrical heighting or GPS
    4Photorammetry
    5External sources
    63D project
    9Estimation (by no. of storeys)

    Z_PREC_BASE
    A precision code to denote the level of height accuracy. It refers to the value in the BLDG_BASE item. The code ranges from 1 to 5 and 9, with 1 considered to be the most accurate and 9 to be the least. The level of accuracy refers to the method of data collection. (Source: SMO)

    ValueDefinition
    1Precise leveling
    2Ordinary leveling
    3Trigonometrical heighting or GPS
    4Photorammetry
    5External sources
    63D project
    9Estimation (by no. of storeys)

    CSU_CAT
    This is a number showing the building's CSU Category (Common Spatial Unit Category) in DAM (Data Alignment Measures). (Source: SMO)

    ValueDefinition
    0Buildings pending for further classification by other departments (default value)
    1Legal private buildings / Housing Authority (HA) or Housing Society (HS) buildings under jurisdiction of the Buildings Ordinance / Home Ownership Scheme (HOS) buildings developed under the Private Sector Participation Scheme (PSPS) / HS buildings which require occupation permit and are under the jurisdiction of the Buildings Ordinance
    2New Territories small Houses
    3HA's public housing estates / HOS estates except those developed under PSPS
    4Government owned properties
    5Temporary structures / open-sided structures with address or building name

    BLDG_EAST
    The Easting part of the Geographic Reference Number (Source: SMO)

    ValueDefinition
    IntegerIt is a redefined item

    BLDG_NORTH
    The Northing part of the Geographic Reference Number (Source: SMO)

    ValueDefinition
    IntegerIt is a redefined item

    BLDG_CSUID
    This is a unique identifier known as Building CSU-ID (Common Spatial Unit ID) in DAM (Data Alignment Measures). It is formed by concatenating the values of GEO_REFNO, POLY_TYPE and CREATE_DATE. (Source: SMO)

    ValueDefinition
    CharacterIt is a redefined item

    DBLDGPOLY.TATBLDGPOLY_CH
    Annotation Attribute Table of DBLDGPOLY for Chinese annotation (Source: ARC/INFO)

    GEO_REFNO
    This is an unique identifier formed by concatenating the Easting(x) and Northing(y) coordinates of the label point inside a building polygon. Before concatenation, all decimals of the x-y coordinates are trimmed off and their preceding figures '8' are removed. Thus, the 'GRO_REFNO' of a label point of coordinate: '813579.85...E; 824680.12...N' would become '1357924680'. (Source: SMO)

    Range of values
    Minimum:0000000000
    Maximum:6750048000

    DISP
    The value of display status (Source: SMO)

    ValueDefinition
    N/ANo annotations required

    DBLDGPOLY.TATBLDGPOLY_ENG
    Annotation Attribute Table of DBLDGPOLY for English annotation (Source: ARC/INFO)

    GEO_REFNO
    This is an unique identifier formed by concatenating the Easting(x) and Northing(y) coordinates of the label point inside a building polygon. Before concatenation, all decimals of the x-y coordinates are trimmed off and their preceding figures '8' are removed. Thus, the 'GRO_REFNO' of a label point of coordinate: '813579.85...E; 824680.12...N' would become '1357924680'. (Source: SMO)

    Range of values
    Minimum:0000000000
    Maximum:6750048000

    DISP
    The value of display status (Source: SMO)

    ValueDefinition
    N/ANo annotations required

    DPODPOLY.AAT
    Arc Attribute Table of DPODPOLY (Source: ARC/INFO)

    TYPE
    Podium polygon feature type (Source: SMO)

    ValueDefinition
    PDPPodium outline
    PUPPodium outline under elevated structures
    IPPImaginary podium outline

    PREC
    A precision code to denote the level of positional accuracy. The code ranges from 1 to 9, with 1 considered to be the most accurate and 9 to be the least. The level of accuracy refers to the method of data collection or data source used for conversion. (Source: SMO)

    ValueDefinition
    1Title survey
    2Topographic survey
    3Topographic survey by GPS
    41:1000 photogrammetric plot
    51:1000 survey sheet (converted by SMO)
    61:1000 survey sheet (converted by contractor)
    71:1200 survey sheet
    81:5000 survey sheet
    9Estimation or proposal

    DISP
    Each feature is given a display status which ranges from 0 to 27 and 99. If two features appear at the same location, dominant feature will be displayed. When a feature is displayed in its defaulted symbology, its display status is 0. (Source: SMO)

    Range of values
    Minimum:0
    Maximum:99

    DPODPOLY.PAT
    Polygon Attribute Table of DPODPOLY (Source: ARC/INFO)

    GEO_REFNO
    This is an unique identifier formed by concatenating the Easting(x) and Northing(y) coordinates of the label point inside a podium polygon. Before concatenation, all decimals of the x-y coordinates are trimmed off and their preceding figures '8' are removed. Thus, the 'GRO_REFNO' of a label point of coordinate: '813579.85...E; 824680.12...N' would become '1357924680'. (Source: SMO)

    Range of values
    Minimum:0000000000
    Maximum:6750048000

    POLY_TYPE
    This is a code showing the layer which the label belongs to. It is generated by the system automatically. It should be "P" in this layer. (Source: SMO)

    ValueDefinition
    PPodium Polygon

    CREATE_DATE
    This is the date when the label is created. It is generated by the system automatically. (Source: SMO)

    ValueDefinition
    MM/DD/YYYYMonth/Day/Year

    PODIUM_TOP
    Approximate level of the top of a demolished podium in metres above Hong Kong Principal Datum (Source: SMO)

    ValueDefinition
    Real number 

    Z_PREC_TOP
    A precision code to denote the level of height accuracy. It refers to the value in the PODIUM_TOP item. The code ranges from 1 to 5 and 9, with 1 considered to be the most accurate and 9 to be the least. The level of accuracy refers to the method of data collection. (Source: SMO)

    ValueDefinition
    1Precise leveling
    2Ordinary leveling
    3Trigonometrical heighting or GPS
    4Photorammetry
    5External sources
    63D project
    9Estimation (by no. of storeys)

    CERTAINTY
    This is an indicator which shows the certainty of the podium polygon (Source: SMO)

    ValueDefinition
    YTYPE of all surrounding arcs are not IPP, i.e. the entire podium outline is well defined and surveyable
    NAny one or more arcs is/are IPP

    CSU_CAT
    This is a number showing the podium's CSU Category (Common Spatial Unit Category) in DAM (Data Alignment Measures). (Source: SMO)

    ValueDefinition
    0Podiums pending for further classification by other departments (default value)
    1Podiums of legal private buildings / Housing Authority (HA) or Housing Society (HS) buildings under jurisdiction of the Buildings Ordinance / Home Ownership Scheme (HOS) buildings developed under the Private Sector Participation Scheme (PSPS) / HS buildings which require occupation permit and are under the jurisdiction of the Buildings Ordinance
    3Podiums in HA's public housing estates / HOS estates not developed under PSPS
    4Podiums in Government owned properties

    PD_EAST
    The Easting part of the Geographic Reference Number (Source: SMO)

    ValueDefinition
    IntegerIt is a redefined item

    PD_NORTH
    The Northing part of the Geographic Reference Number (Source: SMO)

    ValueDefinition
    IntegerIt is a redefined item

    BLDG_CSUID
    This is a unique identifier known as Building CSU-ID (Common Spatial Unit ID) in DAM (Data Alignment Measures). It is formed by concatenating the values of GEO_REFNO, POLY_TYPE and CREATE_DATE. (Source: SMO)

    ValueDefinition
    CharacterIt is a redefined item

    DPODPOLY.TATPODPOLY_CH
    Annotation Attribute Table of DPODPOLY for Chinese annotation (Source: ARC/INFO)

    GEO_REFNO
    This is an unique identifier formed by concatenating the Easting(x) and Northing(y) coordinates of the label point inside a podium polygon. Before concatenation, all decimals of the x-y coordinates are trimmed off and their preceding figures '8' are removed. Thus, the 'GRO_REFNO' of a label point of coordinate: '813579.85...E; 824680.12...N' would become '1357924680'. (Source: SMO)

    Range of values
    Minimum:0000000000
    Maximum:6750048000

    DISP
    The value of display status (Source: SMO)

    ValueDefinition
    N/ANo annotations required

    DPODPOLY.TATPODPOLY_ENG
    Annotation Attribute Table of DPODPOLY for English annotation (Source: ARC/INFO)

    GEO_REFNO
    This is an unique identifier formed by concatenating the Easting(x) and Northing(y) coordinates of the label point inside a podium polygon. Before concatenation, all decimals of the x-y coordinates are trimmed off and their preceding figures '8' are removed. Thus, the 'GRO_REFNO' of a label point of coordinate: '813579.85...E; 824680.12...N' would become '1357924680'. (Source: SMO)

    Range of values
    Minimum:0000000000
    Maximum:6750048000

    DISP
    The value of display status (Source: SMO)

    ValueDefinition
    N/ANo annotations required

    PBLDGPOLY.AAT
    Arc Attribute Table of PBLDGPOLY (Source: ARC/INFO)

    TYPE
    Bldgpoly polygon feature type (Source: SMO)

    ValueDefinition
    BPProposed building block outline
    BAPProposed building outline suppressed for annotation
    BUPProposed building outline under elevated structures
    IBPProposed imaginary building subdivision line (Precision=9)
    OSPProposed open-sided structure outline
    PSHProposed small house outline
    PWPProposed party wall / Proposed building subdivision line
    TSPProposed temporary structure outline

    PREC
    A precision code to denote the level of positional accuracy. (Source: SMO)

    ValueDefinition
    9Estimation or proposal

    DISP
    Each feature is given a display status which ranges from 0 to 27 and 99. If two features appear at the same location, dominant feature will be displayed. When a feature is displayed in its defaulted symbology, its display status is 0. (Source: SMO)

    Range of values
    Minimum:0
    Maximum:99

    PBLDGPOLY.PAT
    Polygon Attribute Table of PBLDGPOLY (Source: ARC/INFO)

    GEO_REFNO
    This is an unique identifier formed by concatenating the Easting(x) and Northing(y) coordinates of the label point inside a building polygon. Before concatenation, all decimals of the x-y coordinates are trimmed off and their preceding figures '8' are removed. Thus, the 'GRO_REFNO' of a label point of coordinate: '813579.85...E; 824680.12...N' would become '1357924680'. (Source: SMO)

    Range of values
    Minimum:0000000000
    Maximum:6750048000

    POLY_TYPE
    This is a code showing the layer which the label belongs to. It is generated by the system automatically. It should be "T" in this layer. (Source: SMO)

    ValueDefinition
    TBuilding Polygon

    CREATE_DATE
    This is the date when the label is created. It is generated by the system automatically. (Source: SMO)

    ValueDefinition
    MM/DD/YYYYMonth/Day/Year

    BLDG_TOP
    Approximate level of the top of a proposed building in metres above Hong Kong Principal Datum (Source: SMO)

    ValueDefinition
    Real number 

    BLDG_BASE
    Approximate level of the base of a proposed building in metres above Hong Kong Principal Datum (Source: SMO)

    ValueDefinition
    Real number 

    Z_PREC_TOP
    A precision code to denote the level of height accuracy. It refers to the value in the BLDG_TOP item. The code ranges from 1 to 5 and 9, with 1 considered to be the most accurate and 9 to be the least. The level of accuracy refers to the method of data collection. (Source: SMO)

    ValueDefinition
    1Precise leveling
    2Ordinary leveling
    3Trigonometrical heighting or GPS
    4Photorammetry
    5External sources
    63D project
    9Estimation (by no. of storeys)

    Z_PREC_BASE
    A precision code to denote the level of height accuracy. It refers to the value in the BLDG_BASE item. The code ranges from 1 to 5 and 9, with 1 considered to be the most accurate and 9 to be the least. The level of accuracy refers to the method of data collection. (Source: SMO)

    ValueDefinition
    1Precise leveling
    2Ordinary leveling
    3Trigonometrical heighting or GPS
    4Photorammetry
    5External sources
    63D project
    9Estimation (by no. of storeys)

    CSU_CAT
    This is a number showing the building's CSU Category (Common Spatial Unit Category) in DAM (Data Alignment Measures). (Source: SMO)

    ValueDefinition
    0Buildings pending for further classification by other departments (default value)
    1Legal private buildings / Housing Authority (HA) or Housing Society (HS) buildings under jurisdiction of the Buildings Ordinance / Home Ownership Scheme (HOS) buildings developed under the Private Sector Participation Scheme (PSPS) / HS buildings which require occupation permit and are under the jurisdiction of the Buildings Ordinance
    2New Territories small Houses
    3HA's public housing estates / HOS estates except those developed under PSPS
    4Government owned properties
    5Temporary structures / open-sided structures with address or building name

    BLDG_EAST
    The Easting part of the Geographic Reference Number (Source: SMO)

    ValueDefinition
    IntegerIt is a redefined item

    BLDG_NORTH
    The Northing part of the Geographic Reference Number (Source: SMO)

    ValueDefinition
    IntegerIt is a redefined item

    BLDG_CSUID
    This is a unique identifier known as Building CSU-ID (Common Spatial Unit ID) in DAM (Data Alignment Measures). It is formed by concatenating the values of GEO_REFNO, POLY_TYPE and CREATE_DATE. (Source: SMO)

    ValueDefinition
    CharacterIt is a redefined item

    PBLDGPOLY.TATBLDGPOLY_CH
    Annotation Attribute Table of PBLDGPOLY for Chinese annotation (Source: ARC/INFO)

    GEO_REFNO
    This is an unique identifier formed by concatenating the Easting(x) and Northing(y) coordinates of the label point inside a building polygon. Before concatenation, all decimals of the x-y coordinates are trimmed off and their preceding figures '8' are removed. Thus, the 'GRO_REFNO' of a label point of coordinate: '813579.85...E; 824680.12...N' would become '1357924680'. (Source: SMO)

    Range of values
    Minimum:0000000000
    Maximum:6750048000

    DISP
    The value of display status (Source: SMO)

    ValueDefinition
    0Shown
    1Hidden

    PBLDGPOLY.TATBLDGPOLY_ENG
    Annotation Attribute Table of PBLDGPOLY for English annotation (Source: ARC/INFO)

    GEO_REFNO
    This is an unique identifier formed by concatenating the Easting(x) and Northing(y) coordinates of the label point inside a building polygon. Before concatenation, all decimals of the x-y coordinates are trimmed off and their preceding figures '8' are removed. Thus, the 'GRO_REFNO' of a label point of coordinate: '813579.85...E; 824680.12...N' would become '1357924680'. (Source: SMO)

    Range of values
    Minimum:0000000000
    Maximum:6750048000

    DISP
    The value of display status (Source: SMO)

    ValueDefinition
    0Shown
    1Hidden

    PPODPOLY.AAT
    Arc Attribute Table of PPODPOLY (Source: ARC/INFO)

    TYPE
    Podium polygon feature type (Source: SMO)

    ValueDefinition
    PDPProposed podium outline
    PUPProposed podium outline under elevated structures
    IPPImaginary podium outline

    PREC
    A precision code to denote the level of positional accuracy. (Source: SMO)

    ValueDefinition
    9Estimation or proposal

    DISP
    Each feature is given a display status which ranges from 0 to 27 and 99. If two features appear at the same location, dominant feature will be displayed. When a feature is displayed in its defaulted symbology, its display status is 0. (Source: SMO)

    Range of values
    Minimum:0
    Maximum:99

    PPODPOLY.PAT
    Polygon Attribute Table of PPODPOLY (Source: ARC/INFO)

    GEO_REFNO
    This is an unique identifier formed by concatenating the Easting(x) and Northing(y) coordinates of the label point inside a podium polygon. Before concatenation, all decimals of the x-y coordinates are trimmed off and their preceding figures '8' are removed. Thus, the 'GRO_REFNO' of a label point of coordinate: '813579.85...E; 824680.12...N' would become '1357924680'. (Source: SMO)

    Range of values
    Minimum:0000000000
    Maximum:6750048000

    POLY_TYPE
    This is a code showing the layer which the label belongs to. It is generated by the system automatically. It should be "P" in this layer. (Source: SMO)

    ValueDefinition
    PPodium Polygon

    CREATE_DATE
    This is the date when the label is created. It is generated by the system automatically. (Source: SMO)

    ValueDefinition
    MM/DD/YYYYMonth/Day/Year

    PODIUM_TOP
    Approximate level of the top of a proposed podium in metres above Hong Kong Principal Datum (Source: SMO)

    ValueDefinition
    Real number 

    Z_PREC_TOP
    A precision code to denote the level of height accuracy. It refers to the value in the PODIUM_TOP item. The code ranges from 1 to 5 and 9, with 1 considered to be the most accurate and 9 to be the least. The level of accuracy refers to the method of data collection. (Source: SMO)

    ValueDefinition
    1Precise leveling
    2Ordinary leveling
    3Trigonometrical heighting or GPS
    4Photorammetry
    5External sources
    63D project
    9Estimation (by no. of storeys)

    CERTAINTY
    This is an indicator which shows the certainty of the podium polygon (Source: SMO)

    ValueDefinition
    YTYPE of all surrounding arcs are not IPP, i.e. the entire podium outline is well defined and surveyable
    NAny one or more arcs is / are IPP

    CSU_CAT
    This is a number showing the podium's CSU Category (Common Spatial Unit Category) in DAM (Data Alignment Measures). (Source: SMO)

    ValueDefinition
    0Podiums pending for further classification by other departments (default value)
    1Podiums of legal private buildings / Housing Authority (HA) or Housing Society (HS) buildings under jurisdiction of the Buildings Ordinance / Home Ownership Scheme (HOS) buildings developed under the Private Sector Participation Scheme (PSPS) / HS buildings which require occupation permit and are under the jurisdiction of the Buildings Ordinance
    3Podiums in HA's public housing estates / HOS estates not developed under PSPS
    4Podiums in Government owned properties

    PD_EAST
    The Easting part of the Geographic Reference Number (Source: SMO)

    ValueDefinition
    IntegerIt is a redefined item

    PD_NORTH
    The Northing part of the Geographic Reference Number (Source: SMO)

    ValueDefinition
    IntegerIt is a redefined item

    BLDG_CSUID
    This is a unique identifier known as Building CSU-ID (Common Spatial Unit ID) in DAM (Data Alignment Measures). It is formed by concatenating the values of GEO_REFNO, POLY_TYPE and CREATE_DATE. (Source: SMO)

    ValueDefinition
    CharacterIt is a redefined item

    PPODPOLY.TATPODPOLY_CH
    Annotation Attribute Table of PODPOLY for Chinese annotation (Source: ARC/INFO)

    GEO_REFNO
    This is an unique identifier formed by concatenating the Easting(x) and Northing(y) coordinates of the label point inside a podium polygon. Before concatenation, all decimals of the x-y coordinates are trimmed off and their preceding figures '8' are removed. Thus, the 'GRO_REFNO' of a label point of coordinate: '813579.85...E; 824680.12...N' would become '1357924680'. (Source: SMO)

    Range of values
    Minimum:0000000000
    Maximum:6750048000

    DISP
    The value of display status (Source: SMO)

    ValueDefinition
    0Shown
    1Hidden

    PPODPOLY.TATPODPOLY_ENG
    Annotation Attribute Table of PODPOLY for English annotation (Source: ARC/INFO)

    GEO_REFNO
    This is an unique identifier formed by concatenating the Easting(x) and Northing(y) coordinates of the label point inside a podium polygon. Before concatenation, all decimals of the x-y coordinates are trimmed off and their preceding figures '8' are removed. Thus, the 'GRO_REFNO' of a label point of coordinate: '813579.85...E; 824680.12...N' would become '1357924680'. (Source: SMO)

    Range of values
    Minimum:0000000000
    Maximum:6750048000

    DISP
    The value of display status (Source: SMO)

    ValueDefinition
    0Shown
    1Hidden

    PROPINFRA.AAT
    Arc Attribute Table of PROPINFRA (Source: ARC/INFO)

    TYPE
    Feature type collection of the proposed infrastructure line feature in BDYFEAT, BLDG, MISCLINE and RELIEF layers (Source: SMO)

    ValueDefinition
    CUProposed cultivation bund
    FProposed fence
    GAProposed gate
    WHProposed free standing wall in tenement block
    WLProposed free standing wall
    CAProposed balcony
    OSProposed open-sided structure with no building name and address / Proposed diagonal lines of open-sided structure with or without building name and address
    PDLProposed internal lines demarcating different levels inside a podium
    PVProposed pavilion
    RPProposed railway station platform
    RPUProposed railway station platform under elevated structures
    RUProposed ruin
    TSProposed temporary structure with no building name and address
    CHLProposed chimney
    FIRProposed culvert / Proposed large grave / Proposed pipeline / Proposed large shrine / Proposed tank / Proposed unclassified firm line features
    FRBProposed firing range boundary / Proposed rifle range boundary
    NBProposed noise barrier
    PECProposed archway / Proposed unclassified pecked line features
    PWLProposed powerline
    PYProposed large pylon
    WIPProposed works in progress
    BOProposed boulder / Proposed rock
    CLProposed cliff / Proposed waterfall / Proposed top limit of quarry
    CWProposed catchwater
    DAProposed flow direction arrow
    HWProposed high water mark / Proposed lower limit of nullah side wall
    POProposed pond / Proposed pool / Proposed fountain / Proposed reservoir / Proposed service reservoir (open) / Proposed moat / Proposed swimming pool
    QBProposed bottom limit of quarry
    RKAProposed rocky area / Proposed group of boulders / Proposed flat rock
    RVProposed river / Proposed nullah / Proposed canal bank
    RVRProposed rocky stream bed
    SBProposed slope bottom (when there are no other ground features to delimit)
    SRProposed small river / Proposed stream / Proposed drain (shown with single line)
    STProposed slope top (when there are no other ground features to delimit)
    SWProposed seawall
    VCProposed vertical cutting / Proposed retaining wall / Proposed artifical slope with depth < 1.5 metres

    PREC
    A precision code to denote the level of positional accuracy. (Source: SMO)

    ValueDefinition
    9Estimation or proposal

    DISP
    Each feature is given a display status which ranges from 0 to 27 and 99. If two features appear at the same location, dominant feature will be displayed. When a feature is displayed in its defaulted symbology, its display status is 0. (Source: SMO)

    Range of values
    Minimum:0
    Maximum:99

    PROPINFRA.PAT
    Point Attribute Table of PROPINFRA (Source: ARC/INFO)

    TYPE
    Feature type collection of the proposed point feature in MISCPT and UTILPT layers (Source: SMO)

    ValueDefinition
    BEAProposed beacon / light
    CEMProposed cemetery
    DOTProposed unclassified dot feature
    GVSProposed small grave
    MAProposed marsh / Proposed swamp
    MNProposed mangrove
    MOProposed monument / Proposed cenotaph / Proposed obelisk / Proposed sculpture / Proposed statue
    MTEProposed MTR entrance
    RAProposed restricted access
    SHSProposed small shrine
    TEProposed tree
    URSproposed small burial urn
    VBProposed vehicular barrier
    WProposed well
    EPProposed electric pole
    ETPProposed electric transformer (pole)
    FHProposed fire hydrant (fresh water)
    LPProposed lamp post
    SFHProposed fire hydrant (salt water)

    ANGLE
    Orientation of the marker symbol to the nearest degree (Source: SMO)

    ValueDefinition
    Real number 

    PREC
    A precision code to denote the level of positional accuracy. (Source: SMO)

    ValueDefinition
    9Estimation or proposal

    DISP
    Each feature is given a display status which ranges from 0 to 27 and 99. If two features appear at the same location, dominant feature will be displayed. When a feature is displayed in its defaulted symbology, its display status is 0. (Source: SMO)

    Range of values
    Minimum:0
    Maximum:99

    NUMBER1
    This is the reference number of the proposed point feature, if any. (Source: SMO)

    ValueDefinition
    Character 

    NUMBER2
    This is the alias reference number of the proposed point feature, if any. (Source: SMO)

    ValueDefinition
    Character 

    NUMBER3
    This is another alias reference number of the proposed point feature, if any. (Source: SMO)

    ValueDefinition
    Character 

    PROPROAD.AAT
    Arc Attribute Table of PROPROAD (Source: ARC/INFO)

    TYPE
    Feature type collection of the proproad line feature in ROAD and RAIL layers (Source: SMO)

    ValueDefinition
    CWYProposed covered walkway
    FBRProposed footbridge (over road / water) / Proposed elevated walkway
    FBUProposed footbridge under elevated structures
    FPProposed footbridge, 0.5-1.5 metres wide
    FPWProposed footbridge, >1.5 metres wide
    FYProposed flyover / Proposed elevated road / Proposed bridge for vehicles or railway
    FYUProposed flyover under another flyover or other elevated structures
    PAProposed pavement (including bicycle track)
    PAUProposed pavement under elevated structures
    RMProposed road margin
    RMUProposed road margin under elevated structures
    STPProposed step
    SWYProposed pedestrian subway
    TCProposed track
    TURProposed tunnel for vehicles or railway, including cross-harbour tunnel
    LRProposed Light Rail Transit
    MTRProposed Mass Transit Railway
    PTProposed Peak Tramway
    TWProposed Tramway

    PREC
    A precision code to denote the level of positional accuracy. (Source: SMO)

    ValueDefinition
    9Estimation or proposal

    DISP
    Each feature is given a display status which ranges from 0 to 27 and 99. If two features appear at the same location, dominant feature will be displayed. When a feature is displayed in its defaulted symbology, its display status is 0. (Source: SMO)

    Range of values
    Minimum:0
    Maximum:99

    PROPROAD.TATROAD_CH
    Annotation Attribute Table of PROPROAD for Chinese annotation (Source: ARC/INFO)

    ST_CODE
    This is a unique code assigned by LIC for a particular street (Source: SMO)

    Formal codeset
    Codeset Name:Street_code
    Codeset Source:LIC

    DISP
    The value of display status (Source: SMO)

    ValueDefinition
    0Shown
    1Hidden

    PROPROAD.TATROAD_ENG
    Annotation Attribute Table of PROPROAD for English annotation (Source: ARC/INFO)

    ST_CODE
    This is a unique code assigned by LIC for a particular street (Source: SMO)

    Formal codeset
    Codeset Name:Street_code
    Codeset Source:LIC

    DISP
    The value of display status (Source: SMO)

    ValueDefinition
    0Shown
    1Hidden

    PROPSITE.PAT
    Polygon Attribute Table of PROPSITE (Source: ARC/INFO)

    GEO_REFNO
    This is an unique identifier formed by concatenating the Easting(x) and Northing(y) coordinates of the label point inside a site polygon. Before concatenation, all decimals of the x-y coordinates are trimmed off and their preceding figures '8' are removed. Thus, the 'GRO_REFNO' of a label point of coordinate: '813579.85...E; 824680.12...N' would become '1357924680'. (Source: SMO)

    Range of values
    Minimum:0000000000
    Maximum:6750048000

    ANT_COMP_DATE
    The anticipate completion date of the proposed site (Source: SMO)

    ValueDefinition
    MM/DD/YYYYMonth/Day/Year

    SITE_EAST
    The Easting part of the Geographic Reference Number (Source: SMO)

    ValueDefinition
    IntegerIt is a redefined item

    SITE_NORTH
    The Northing part of the Geographic Reference Number (Source: SMO)

    ValueDefinition
    IntegerIt is a redefined item

    PSPOTHT.PAT
    Point Attribute Table of PSPOTHT (Source: ARC/INFO)

    SPOT_HT
    Proposed spot height to the nearest one decimal place in metres (Source: SMO)

    ValueDefinition
    Real number 

    SPOT_POS
    Position to place the height value on the map related to the point (Source: SMO)

    ValueDefinition
    1Upper left
    2Upper right
    3Lower right
    4Lower left

    DISP
    The value of display status (Source: SMO)

    ValueDefinition
    99Not displayed

    SP_TYPE
    Spot Height point feature type (Source: SMO)

    ValueDefinition
    GSpot height which depicts Ground level, including level of road, pavement, etc.
    ESpot height which depicts top level of Elevated structure, such as the top of a podium, rather than the level on ground.

    Z_PREC
    A precision code to denote the level of height accuracy. (Source: SMO)

    ValueDefinition
    9Estimation (by no. of storeys)

    ADDR_HSNO
    Lookup table for address house number (Source: ARC/INFO)

    GEO_REFNO
    This is an unique identifier formed by concatenating the Easting(x) and Northing(y) coordinates of the label point inside a building/podium/site polygon. Before concatenation, all decimals of the x-y coordinates are trimmed off and their preceding figures '8' are removed. Thus, the 'GRO_REFNO' of a label point of coordinate: '813579.85...E; 824680.12...N' would become '1357924680'. (Source: SMO)

    Range of values
    Minimum:0000000000
    Maximum:6750048000

    POLY_TYPE
    This is a code showing the layer which the label belongs to. It is generated by the system automatically. (Source: SMO)

    ValueDefinition
    TThe label belongs to Bldgpoly, Pbldgpoly and Dbldgpoly
    PThe label belongs to Podpoly, Ppodpoly and Dpodpoly
    (Blank)Other layers

    CREATE_DATE
    This is the date when the label is created. It is generated by the system automatically. (Source: SMO)

    ValueDefinition
    MM/DD/YYYYMonth/Day/Year

    ST_CODE
    This is the code of street/village/estate where the address locates in. It is pre-assigned by LIC. (Source: SMO)

    Formal codeset
    Codeset Name:Street_code
    Codeset Source:LIC

    ADDR_HSNOS1
    Numeric part of the starting house number of a building / podium / site (Source: SMO)

    ValueDefinition
    Integer 

    ADDR_HSNOS2
    Alphabetic part of the starting house number of a building / podium / site (Source: SMO)

    ValueDefinition
    Character 

    ADDR_HSNOE1
    Numeric part of the ending house number of a building / podium / site (Source: SMO)

    ValueDefinition
    Integer 

    ADDR_HSNOE2
    Alphabetic part of the ending house number of a building / podium / site (Source: SMO)

    ValueDefinition
    Character 

    ADDR_TYPE
    House number type (Source: SMO)

    ValueDefinition
    OOdd house number type
    EEven house number type
    SSquential house number type
    DOdd house number with prefix in alpha type
    VEven house number with prefix in alpha type
    QSequential house number with prefix in alpha type
    AOdd house number with prefix and suffix in alpha type
    BEven house number with prefix and suffix in alpha type
    CSequential house number with prefix and suffix in alpha type

    LOG
    This is an indicator showing the lock status of the current record in the lookup table. If it is being updated, the system will generate a random number in this field so that other user(s) cannot update it at the same time. After this record is updated to Library, the number in the 'LOG' field would be reset to zero (0). (Source: SMO)

    ValueDefinition
    Integer 

    LAYER
    The layer that this record belongs to (Source: SMO)

    ValueDefinition
    BLDGPOLYBuilding polygon
    DBLDGPOLYDemolished building polygon
    PBLDGPOLYProposed building polygon
    PODPOLYPodium polygon
    DPODPOLYDemolished podium polygon
    PPODPOLYProposed podium polygon
    SITESite polygon
    PROPSITEProposed site polygon

    NAME_STATUS
    Current status of the address-house number (Source: SMO)

    ValueDefinition
    DDemolished
    EExisting (default)
    OOther name (alias)
    PProposed
    RRenamed

    SOURCE
    Where the building/podium/site is obtained from (Source: SMO)

    ValueDefinition
    DLOFrom District Land Office
    DOFrom District Office
    DSOFrom field survey by District (default)
    FSDFrom Fire Services department
    LICAdded by LIC (without field verification)
    LRFrom Land Registry
    POFrom Post Office
    OSSFrom old survey sheets
    RVDFrom Rating and Valuation Department

    DATE
    Date of addition or last updating of the lookup-table record generated by the system automatically. (Source: SMO)

    ValueDefinition
    MM/DD/YYYYMonth/Day/Year

    ADDR_EAST
    The Easting part of the Geographic Reference Number (Source: SMO)

    ValueDefinition
    IntegerIt is a redefined item

    ADDR_NORTH
    The Northing part of the Geographic Reference Number (Source: SMO)

    ValueDefinition
    IntegerIt is a redefined item

    ADDRESS
    The full address of a building/podium/site (Source: SMO)

    ValueDefinition
    IntegerIt is a redefined item

    BLDG_CSUID
    This is a unique identifier known as Building CSU-ID (Common Spatial Unit ID) in DAM (Data Alignment Measures). It is formed by concatenating the values of GEO_REFNO, POLY_TYPE and CREATE_DATE. (Source: SMO)

    ValueDefinition
    CharacterIt is a redefined item

    BLDG_NAME
    Lookup table for building name and related information (Source: ARC/INFO)

    GEO_REFNO
    This is an unique identifier formed by concatenating the Easting(x) and Northing(y) coordinates of the label point inside a building polygon. Before concatenation, all decimals of the x-y coordinates are trimmed off and their preceding figures '8' are removed. Thus, the 'GRO_REFNO' of a label point of coordinate: '813579.85...E; 824680.12...N' would become '1357924680'. (Source: SMO)

    Range of values
    Minimum:0000000000
    Maximum:6750048000

    POLY_TYPE
    This is a code showing the layer which the label belongs to. It is generated by the system automatically. (Source: SMO)

    ValueDefinition
    TThe record belongs to BLDGPOLY, PBLDGPOLY and DBLDGPOLY

    CREATE_DATE
    This is the date when the label is created. It is generated by the system automatically. (Source: SMO)

    ValueDefinition
    MM/DD/YYYYMonth/Day/Year

    DISTRICT
    An abbreviation of the SMO Survey District where the label locates in. It is generated by the system automatically. (Source: SMO)

    ValueDefinition
    HKHong Kong
    ISIslands
    KKowloon
    KTKwai Tsing
    NNorth
    SKSai Kung
    STShatin
    TMTuen Mun
    TPTai PO
    TWTsuen Wan
    YLYuen Long

    ST_CODE
    This is the code of the village/estate where the building locates in. It is pre-assigned by LIC. (Source: SMO)

    Formal codeset
    Codeset Name:Street_code
    Codeset Source:LIC

    BLDG_PACKNM
    Building name, block number with village / estate name and phrase number (if any) in packed format (Source: SMO)

    ValueDefinition
    Character 

    BLDG_ENGNM
    Building name, block number with village / estate name and phrase number (if any) in English (Source: SMO)

    ValueDefinition
    Character 

    BLDG_CHNM
    Building name, block number with village / estate name and phrase number (if any) in Chinese (Source: SMO)

    ValueDefinition
    Character 

    LOG
    This is an indicator showing the lock status of the current record in the lookup table. If it is being updated, the system will generate a random number in this field so that other user(s) cannot update it at the same time. After this record is updated to Library, the number in the 'LOG' field would be reset to zero (0). (Source: SMO)

    ValueDefinition
    Integer 

    LAYER
    The layer that this record belongs to (Source: SMO)

    ValueDefinition
    BLDGPOLYBuilding polygon
    DBLDGPOLYDemolished building polygon
    PBLDGPOLYProposed building polygon

    NAME_STATUS
    Current status of the building name (Source: SMO)

    ValueDefinition
    DDemolished
    EExisting (default)
    OOther name (alias)
    PProposed
    RRenamed

    SOURCE
    Where the building name is obtained from (Source: SMO)

    ValueDefinition
    DLOFrom District Land Office
    DOFrom District Office
    DSOFrom field survey by District Survey Office (default)
    FSDFrom Fire Services department
    LICAdded by LIC (without field verification)
    LRFrom Land Registry
    OSSFrom old survey sheets
    POFrom Hong Kong Post Office
    RVDFrom Rating and Valuation Department

    DATE
    Date of addition or last updating of the lookup-table record generated by the system automatically. (Source: SMO)

    ValueDefinition
    MM/DD/YYYYMonth/Day/Year

    BLDG_EAST
    The Easting part of the Geographic Reference Number (Source: SMO)

    ValueDefinition
    IntegerIt is a redefined item

    BLDG_NORTH
    The Northing part of the Geographic Reference Number (Source: SMO)

    ValueDefinition
    IntegerIt is a redefined item

    BLDG_CSUID
    This is a unique identifier known as Building CSU-ID (Common Spatial Unit ID) in DAM (Data Alignment Measures). It is formed by concatenating the values of GEO_REFNO, POLY_TYPE and CREATE_DATE. (Source: SMO)

    ValueDefinition
    CharacterIt is a redefined item

    BLDG_CSUID
    Lookup table for Building CSU-ID (Common Spatial Unit ID) in DAM (Data Alignment Measures) and related information (Source: ARC/INFO)

    GEO_REFNO
    This is an unique identifier formed by concatenating the Easting(x) and Northing(y) coordinates of the label point inside a building/podium polygon. Before concatenation, all decimals of the x-y coordinates are trimmed off and their preceding figures '8' are removed. Thus, the 'GRO_REFNO' of a label point of coordinate: '813579.85...E; 824680.12...N' would become '1357924680'. (Source: SMO)

    Range of values
    Minimum:0000000000
    Maximum:6750048000

    POLY_TYPE
    This is a code showing the layer which the label belongs to. It is generated by the system automatically. (Source: SMO)

    ValueDefinition
    T/A/BThe record belongs to BLDGPOLY, PBLDGPOLY and DBLDGPOLY ('T' record is created by LandsD; 'A' record is provided by ArchSD and 'B' record is provided by BD)
    P/C/DThe record belongs to PODPOLY, PPODPOLY or DPODPOLY ('P' record is created by LandsD; 'C' record is provided by ArchSD and 'D' record is provided by BD)

    CREATE_DATE
    This is the date when the label is created. It is generated by the system automatically. (Source: SMO)

    ValueDefinition
    MM/DD/YYYYMonth/Day/Year

    RECORD_STATUS
    Current status of a building (Source: SMO)

    ValueDefinition
    AActive
    DDemolished
    PProposed
    WWithdrawn

    CSU_CAT
    This is a number showing the building / podium's CSU Category (Common Spatial Unit Category) in DAM (Data Alignment Measures). (Source: SMO)

    ValueDefinition
    0Buildings pending for further classification by other departments (default value)
    1Legal private buildings / Housing Authority (HA) or Housing Society (HS) buildings under jurisdiction of the Buildings Ordinance / Home Ownership Scheme (HOS) buildings developed under the Private Sector Participation Scheme (PSPS) / HS buildings which require occupation permit and are under the jurisdiction of the Buildings Ordinance
    2New Territories small Houses
    3HA's public housing estates / HOS estates except those developed under PSPS
    4Government owned properties
    5Temporary structures / open-sided structures with address or building name

    DATE
    Date of addition or last updating of the lookup-table record generated by the system automatically. (Source: SMO)

    ValueDefinition
    MM/DD/YYYYMonth/Day/Year

    LOG
    This is an indicator showing the lock status of the current record in the lookup table. If it is being updated, the system will generate a random number in this field so that other user(s) cannot update it at the same time. After this record is updated to Library, the number in the 'LOG' field would be reset to zero (0). (Source: SMO)

    ValueDefinition
    Integer 

    BLDG_CSUID
    This is a unique identifier known as Building CSU-ID (Common Spatial Unit ID) in DAM (Data Alignment Measures). It is formed by concatenating the values of GEO_REFNO, POLY_TYPE and CREATE_DATE. (Source: SMO)

    ValueDefinition
    CharacterIt is a redefined item

    GEO_REFERENCE
    Lookup table for the Geo_reference number (Source: ARC/INFO)

    GEO_REFNO
    This is an unique identifier formed by concatenating the Easting(x) and Northing(y) coordinates of the label point inside a building/podium polygon. Before concatenation, all decimals of the x-y coordinates are trimmed off and their preceding figures '8' are removed. Thus, the 'GRO_REFNO' of a label point of coordinate: '813579.85...E; 824680.12...N' would become '1357924680'. (Source: SMO)

    Range of values
    Minimum:0000000000
    Maximum:6750048000

    POLY_TYPE
    This is a code showing the layer which the label belongs to. It is generated by the system automatically. (Source: SMO)

    ValueDefinition
    T/A/BThe record belongs to BLDGPOLY, PBLDGPOLY or DBLDGPOLY ('T' record is created by LandsD; 'A' record is provided by ArchSD and 'B' record is provided by BD)
    P/C/DThe record belongs to PODPOLY, PPODPOLY or DPODPOLY ('P' record is created by LandsD; 'C' record is provided by ArchSD and 'D' record is provided by BD)

    CREATE_DATE
    This is the date when the label is created. It is generated by the system automatically. (Source: SMO)

    ValueDefinition
    MM/DD/YYYYMonth/Day/Year

    OPERATION
    This is a code applied to a building/podium polygon. (Source: SMO)

    ValueDefinition
    MMerged multiple polygons into one polygon and assigned a new BLDG_CSUID for the new polygon.
    RRe-assigned a new BLDG_CSUID for an existing polygon.
    SSplitted one polygon into multiple polygons and assigned new BLDG_CSUIDs for each of the new polygons.

    O_GEO_REFNO
    The previous geo-reference Number of a building/podium polygon. (Source: SMO)

    Range of values
    Minimum:0000000000
    Maximum:6750048000

    O_POLY_TYPE
    The previous POLY_TYPE of a building/podium polygon. (Source: SMO)

    ValueDefinition
    TThe record belongs to BLDGPOLY, PBLDGPOLY or DBLDGPOLY
    PThe record belongs to PODPOLY, PPODPOLY or DPODPOLY

    O_CREATE_DATE
    The previous CREATE_DATE of a building/podium polygon. (Source: SMO)

    ValueDefinition
    MM/DD/YYYYMonth/Day/Year

    LOG
    This is an indicator showing the lock status of the current record in the lookup table. If it is being updated, the system will generate a random number in this field so that other user(s) cannot update it at the same time. After this record is updated to Library, the number in the 'LOG' field would be reset to zero (0). (Source: SMO)

    ValueDefinition
    Integer 

    LAYER
    The layer that this record belongs to (Source: SMO)

    ValueDefinition
    BLDGPOLYBuilding polygon
    DBLDGPOLYDemolished building polygon
    PBLDGPOLYProposed building polygon
    PODPOLYPodium polygon
    DPODPOLYDemolished podium polygon
    PPODPOLYProposed podium polygon

    GEO_EAST
    The Easting part of the Geographic Reference Number (Source: SMO)

    ValueDefinition
    IntegerIt is a redefined item

    GEO_NORTH
    The Northing part of the Geographic Reference Number (Source: SMO)

    ValueDefinition
    IntegerIt is a redefined item

    BLDG_CSUID
    This is a unique identifier known as Building CSU-ID (Common Spatial Unit ID) in DAM (Data Alignment Measures). It is formed by concatenating the values of GEO_REFNO, POLY_TYPE and CREATE_DATE. (Source: SMO)

    ValueDefinition
    CharacterIt is a redefined item

    O_GEO_EAST
    The Easting part of the Geographic Reference Number (Source: SMO)

    ValueDefinition
    IntegerIt is a redefined item

    O_GEO_NORTH
    The Northing part of the Geographic Reference Number (Source: SMO)

    ValueDefinition
    IntegerIt is a redefined item

    O_BLDG_CSUID
    The previous Building CSU-ID of a building/podium polygon (Source: SMO)

    ValueDefinition
    CharacterIt is a redefined item

    PODIUM_NAME
    Lookup table for podium name and related information (Source: ARC/INFO)

    GEO_REFNO
    This is an unique identifier formed by concatenating the Easting(x) and Northing(y) coordinates of the label point inside a podium polygon. Before concatenation, all decimals of the x-y coordinates are trimmed off and their preceding figures '8' are removed. Thus, the 'GRO_REFNO' of a label point of coordinate: '813579.85...E; 824680.12...N' would become '1357924680'. (Source: SMO)

    Range of values
    Minimum:0000000000
    Maximum:6750048000

    POLY_TYPE
    This is a code showing the layer which the label belongs to. It is generated by the system automatically. (Source: SMO)

    ValueDefinition
    PThe record belongs to PODPOLY, PPODPOLY and DPODPOLY

    CREATE_DATE
    This is the date when the label is created. It is generated by the system automatically. (Source: SMO)

    ValueDefinition
    MM/DD/YYYYMonth/Day/Year

    DISTRICT
    An abbreviation of the SMO Survey District where the label locates in. It is generated by the system automatically. (Source: SMO)

    ValueDefinition
    HKHong Kong
    ISIslands
    KKowloon
    KTKwai Tsing
    NNorth
    SKSai Kung
    STShatin
    TMTuen Mun
    TPTai PO
    TWTsuen Wan
    YLYuen Long

    ST_CODE
    This is a code of the village/estate where the podium locates in. It is pre-assigned by LIC. (Source: SMO)

    Formal codeset
    Codeset Name:Street_code
    Codeset Source:LIC

    PODIUM_PACKNM
    Podium name in packed format (Source: SMO)

    ValueDefinition
    Character 

    PODIUM_ENGNM
    Podium name in English (Source: SMO)

    ValueDefinition
    Character 

    PODIUM_CHNM
    Podium namer in Chinese (Source: SMO)

    ValueDefinition
    Character 

    LOG
    This is an indicator showing the lock status of the current record in the lookup table. If it is being updated, the system will generate a random number in this field so that other user(s) cannot update it at the same time. After this record is updated to Library, the number in the 'LOG' field would be reset to zero (0). (Source: SMO)

    ValueDefinition
    Integer 

    LAYER
    The layer that this record belongs to (Source: SMO)

    ValueDefinition
    PODPOLYPodium polygon
    DPODPOLYDemolished podium polygon
    PPODPOLYProposed podium polygon

    NAME_STATUS
    Current status of the podium name (Source: SMO)

    ValueDefinition
    DDemolished
    EExisting (default)
    OOther name (alias)
    PProposed
    RRenamed

    SOURCE
    Where the podium name is obtained from (Source: SMO)

    ValueDefinition
    DLOFrom District Land Office
    DOFrom District Office
    DSOFrom field survey by District Survey Office (default)
    FSDFrom Fire Services department
    LICAdded by LIC (without field verification)
    LRFrom Land Registry
    OSSFrom old survey sheets
    POFrom Hong Kong Post Office
    RVDFrom Rating and Valuation Department

    DATE
    Date of addition or last updating of the lookup-table record generated by the system automatically (Source: SMO)

    ValueDefinition
    MM/DD/YYYYMonth/Day/Year

    PODIUM_EAST
    The Easting part of the Geographic Reference Number (Source: SMO)

    ValueDefinition
    IntegerIt is a redefined item

    PODIUM_NORTH
    The Northing part of the Geographic Reference Number (Source: SMO)

    ValueDefinition
    IntegerIt is a redefined item

    BLDG_CSUID
    This is a unique identifier known as Building CSU-ID (Common Spatial Unit ID) in DAM (Data Alignment Measures). It is formed by concatenating the values of GEO_REFNO, POLY_TYPE and CREATE_DATE. (Source: SMO)

    ValueDefinition
    CharacterIt is a redefined item

    STREET_CODE
    Lookup table for the Street / Village / Estate Code (Source: ARC/INFO)

    ST_CODE
    This is a unique number assigned by LIC for a particular street, village or estate (Source: SMO)

    Formal codeset
    Codeset Name:Street_code
    Codeset Source:LIC

    ST_PACKNM
    Name of street, village or estate in packed format (Source: SMO)

    ValueDefinition
    Character 

    ST_ENGNM
    Name of street, village or estate in English (Source: SMO)

    ValueDefinition
    Character 

    ST_CHNM
    Name of street, village or estate in Chinese (Source: SMO)

    ValueDefinition
    Character 

    DISTRICT
    An abbreviation of the SMO Survey District where the dominant part of the street/village/estate located in. (Source: SMO)

    ValueDefinition
    HKHong Kong
    ISIslands
    KKowloon
    KTKwai Tsing
    NNorth
    SKSai Kung
    STShatin
    TMTuen Mun
    TPTai PO
    TWTsuen Wan
    YLYuen Long

    TILE-NAME
    Name of the B1000 tile in which the dominant part of the street / village / estate locates in (Source: SMO)

    ValueDefinition
    Character 

    NAME_STATUS
    Current status of the street/village/estate (Source: SMO)

    ValueDefinition
    DDemolished
    EExisting (default)
    OOther name (alias)
    PProposed
    RRenamed

    SOURCE
    Where the street/village/estate name is obtained from (Source: SMO)

    ValueDefinition
    DLOFrom District Land Office
    DOFrom District Office
    DSOFrom field survey by District Survey Office (default)
    FSDFrom Fire Services Department
    LICAdded by LIC (without field verification)
    LRFrom Land Registry
    OSSFrom old survey sheets
    POFrom Post Office
    RVDFrom Rating and Valuation Department

    DATE
    Date of addition or last updating of the street/village/estate name (Source: SMO)

    ValueDefinition
    MM/DD/YYYYMonth/Day/Year

    LOG
    This is an indicator showing the lock status of the current record in the lookup table. If it is being updated, the system will generate a random number in this field so that other user(s) cannot update it at the same time. After this record is updated to Library, the number in the 'LOG' field would be reset to zero (0). (Source: SMO)

    ValueDefinition
    Integer 

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

  2. Who also contributed to the data set?

  3. To whom should users address questions about the data?

    Land Informtion Centre, Survey and Mapping Office, Lands Department, the Government of the Hong Kong Special Administrative Region
    Senior Land Surveyor/Land Information Centre (2), Lands Department
    23/F, North Point Government Offices, 333 Java Road, North Point
    Hong Kong, Hong Kong Special Administrative Region None
    The People's Republic of China

    (852) 2231 3443 (voice)
    (852) 2877 8520 (FAX)
    slslic2@landsd.gov.hk

    Hours_of_Service: 0900-1700
    Contact_Instructions:
    The contract document for the purchase of digital data can also be downloaded. It is a compressed file and the size is about 2MByte.

Why was the data set created?

The data set are widely used for land administration, planning, engineering development and record purposes by the private sectors and the HKSAR Government. This versatile, up-to-date digital map also serves as a common database for all other GIS applications.

How was the data set created?

  1. From what previous works were the data drawn?

    None (source 1 of 4)
    Survey and Mapping Office, Lands Department, 1995, 1:1000 Survey Sheet: HP1C 1000 BMS, Survey and Mapping Office, Lands Department, Hong Kong Special Administrative Region.

    Type_of_Source_Media: Stable-base material
    Source_Scale_Denominator: 1000
    Source_Contribution: Spatial and attribute information

    None (source 2 of 4)
    Survey and Mapping Office, Lands Department, 1990, 1:1200 Survey Sheet: Survey and Mapping Office, Lands Department, Hong Kong.

    Type_of_Source_Media: Stable-base material
    Source_Scale_Denominator: 1200
    Source_Contribution: Spatial and attribute information

    None (source 3 of 4)
    Survey and Mapping Office, Lands Department, 1990, Photogrammetric field sheet.

    Type_of_Source_Media: Digital
    Source_Contribution: Spatial and attribute information

    None (source 4 of 4)
    Survey and Mapping Office, Lands Department, 1992, Title Survey.

    Type_of_Source_Media: Digital
    Source_Contribution: Spatial and attribute information

  2. How were the data generated, processed, and modified?

    Date: Jul-1999 (process 1 of 6)
    All the Chinese text is added to the database as graphic and textual data

    Date: Aug-2001 (process 2 of 6)
    Three proposd layer; PBLDGPOLY, PROPROAD and PROPINFRA are added to B1000 Mapping System

    Date: May-2005 (process 3 of 6)
    To meet the requirements of DAM (Data Alignment Measures), numbers of enhancement and modification is taken into 1:1000 Basic Mapping System. New layers (DBLDGPOLY, PODPOLY, PPODPOLY and DPODPOLY) and lookup tables (PODIUM_NAME and BLDG_CSUID) are added. Numbers of the existing layers (BLDGPOLY and BLDG) and lookup tables (ADDR_HSNO, BLDG_NAME and GEO_REFERENCE) are modified. The layer OBLDG is removed as it is replaced by DBLDGPOLY. Also, some of the modification are not related to DAM exercise; new layer PSPOTHT is added and existing layer SPOTHT is modified.

    Date: Apr-2007 (process 4 of 6)
    Item ANT_COMP_DATE is added in PROPSITE layer

    Date: 2008 (process 5 of 6)
    Version 3.1 is launched

    Date: 2008 (process 6 of 6)
    Version 3.2 is launched

  3. What similar or related data should the user be aware of?

How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?

    Attribute accuracy is checked by manual comparison of the source with the hard copy print-out. The attributes items are also confined by the Item Definition and pre-defined feature type. In addition, DM software tests the attributes against a master set of valid attributes. The program will prohibit data writing to the data library and prompt a warning message if any deviation from the standard is found.

  2. How accurate are the geographic locations?

    Features in BMS have a "Precision" code to denote its data capturing method or sources. The code ranges from 1 to 9 with 1 being the most accurate and 9 being the least. Accuracy analysis has been carried out to quantify how each of the ranking represents. The analysis is based on the law of propagation of error with the assumption that errors are uncorrelated and normally distributed. The analysis shows that the position accuracy of BMS data varies from about 0.015m in the best to 1.500m to the worst for data captured by title survey method to data digitized from the original 1:1200 scale survey sheet.

  3. How accurate are the heights or depths?

  4. Where are the gaps in the data? What is missing?

    In the 1:1000 scale BMS dataset, only those features defined in the B1000 specifications will be captured. If two or more ground features are separated by less than 1 metre, only the most prominent feature will be shown whereas the others will be suppressed in the graphic presentation. Besides, features may have been eliminated or generalized on the source graphic, due to scale, legibility or change of mapping specifications. Owing to stringent time-frame during data conversion, some of the attribute fields are yet to be filled up.

  5. How consistent are the relationships among the observations, including topology?

    Polygon and chain node topology present

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints:
The Government of the HKSAR is the copyright owner of the digital data, which is available for sale to the public at prescribed charges. The Government will issue a non-exclusive and non-transferable licence to the customer after he/she has purchased the data. The licensee is permitted to use the data from the date as set out in the Licence. The licensee must have obtained written consent from the Government and paid the necessary royalty charges before he/she can incorporate the digital data in any product for distribution to any third party. If the licensee ceases using the digital data, the licensee should confirm to the Government in writting that the data has been erased from his/her computer system. Sample data for testing computer system is availabe free of charge. Sample data for academics for teaching purpose are available on request at a nominal administrative fee. The digital data would be provided to other government departments or their consultants free of charge.
Use_Constraints:
The use of the data supplied under the licence shall be subject to the computer configuration, for the purposes and at the location as specified in the Licence Agreement. The digital data can be provided to other goverment departments and their consultants for internal use and project purpose respectively. Such data shall not be distributed in part or in whole and in whatever forms and media to a third party. The use of digital data is also subject to some conditions which can be obtained upon request.

  1. Who distributes the data set? (Distributor 1 of 1)

    Headquarters Division, Survey and Mapping Office, Lands Department, the Government of the Hong Kong Special Administrative Region
    Senior Cartographer/Headquarter, Lands Department
    23/F, North Point Government Offices, 333 Java Road, North Point
    Hong Kong, Hong Kong Special Administrative Region None
    The People's Republic of China

    (852) 2231 3187 (voice)
    (852) 2116 0774 (FAX)
    lic_custsup@landsd.gov.hk

  2. What's the catalog number I need to order this data set?

  3. What legal disclaimers am I supposed to read?

    As stated in the relevant licence agreement or terms and conditions for using digital map

  4. How can I download or order the data?

Who wrote the metadata?

Dates:
Last modified: 18-Mar-2016
Metadata author:
Land Information Centre, Survey and Mapping Office, Lands Department, the Government of the Hong Kong Special Administrative Region
Land Surveyor/Land Information Centre (2), Lands Department
23/F, North Point Government Offices, 333 Java Road, North Point
Hong Kong, Hong Kong Special Administrative Region None
The People's Republic of China

(852) 2231 3450 (voice)
(852) 2877 8520 (FAX)
lslic2@landsd.gov.hk

Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (Version 2.0) (FGDC-STD-001-1998)

Generated by mp version 2.9.12 on Fri Mar 18 13:59:31 2016