Hong Kong Map Data B20000 Dataset in ARC/INFO Format

Other Metadata formats: - [Traditional FGDC Format]

Frequently anticipated questions:


What does this data set describe?

Title: Hong Kong Map Data B20000 Dataset in ARC/INFO Format
Abstract:
The small-scale map data, in 1:20000 scale with attributes maintained in ODBC database, were promulgated in October 1999. The DGN native format data are also available in ArcInfo coverage, ArcInfo Export (E00), DWG, DXF and GeoTIFF formats to facilitate the development of GIS and Mapping applications on different hardware and software platforms.
The DGN, DWG, DXF and ArcInfo formats support vector data that contain both the graphical features and relevant attributes on different layers. On the other hand, raster image data of 1:20000 map data are maintained in GeoTIFF format.
The small-scale map data are maintained with attributes and a unique primary identifier of MSLINK.
Supplemental_Information:
The B20000 dataset provides rich and comprehensive information to the users. Feature types and source of data of the building, facility, place, railway and road are maintained in their related attribute tables. Chinese characters are provided in Big5 internal code with Hong Kong Supplementary Character Set (HKSCS). The HKSCS is a supplementary character set of the Big-5 and ISO10646 coding schemes, provides a common Chinese language interface to Government departments and the public so as to facilitate electronic exchange of information in Chinese characters.
Users can obtain the up-to-date status of the B20000 through the README document provided in the dissemination of data.
The Small Scale Mapping System (SSMS) is updated daily with reference to the changes in Computerized Land Information System (CLIS) data in ArcInfo native format. The procedures comprise the data conversion from CLIS ArcInfo native into DGN format, updating the SSMS data in accordance with the newly inserted, amended and deleted CLIS data and other relevant data, data manipulation in accordance with the SSMS data specifications, and finally data output to the specific dataset specifications.
System customization has been developed for streamlining the workflow that update, maintain and monitor the production of the SSMS data and map products. The focus of the customization aims at ensuring the standardization of production workflow, controlling the data accuracy, facilitating user-friendly operations and enhancing the ease of use, and closely monitoring the SSMS data.
  1. How should this data set be cited?

    Mapping Section, Land Information Centre, Survey and Mapping Office, Lands Department, the Government of the Hong Kong Special Administrative Region (HKSAR), 201603, Hong Kong Map Data B20000 Dataset in ARC/INFO Format: Hong Kong Map Data in 1:20000 scale B20000, Survey and Mapping, Lands Department, the Government of the HKSAR, Hong Kong Special Administrative Region.

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: 113.8167
    East_Bounding_Coordinate: 114.5167
    North_Bounding_Coordinate: 22.5833
    South_Bounding_Coordinate: 22.1333

  3. What does it look like?

    b20000_arcinfo.jpg (image file created by ESRI AML)
    B20000 dataset in ArcInfo format

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

    Beginning_Date: Oct-1999
    Ending_Date: Apr-2007
    Currentness_Reference: Revision date

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

    Geospatial_Data_Presentation_Form: Vector data in ARCINFO coverage with attributes

  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 (2847)
      • Complete chain (234730)
      • GT-polygon composed of chains (162881)

    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 Meters

      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?

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

    MSLINK
    Reserved for future use. Set as zero (Source: Mapping Section)

    ValueDefinition
    0 

    CLASS
    Feature Class (Source: Mapping Section)

    ValueDefinition
    BDFControl Boundary Feature
    ENCEnclosed Boundary
    ADMAdministrative Boundary

    TYPE
    Feature Type (Source: Mapping Section)

    ValueDefinition
    CLOClose Area Boundary
    HBLHarbour Limit
    FRBFiring Range Boundary
    REBRestricted Area Boundary
    SARHKSAR Boundary
    SAUHKSAR Boundary (suppressed)

    SOURCE
    The source from which the map data acquired and generalized (Source: Mapping Section)

    Formal codeset
    Codeset Name:SOURCE TABLE
    Codeset Source:Mapping Section

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

    MSLINK
    Reserved for future use. Set as zero (Source: Mapping Section)

    ValueDefinition
    0 

    CLASS
    Feature Class (Source: Mapping Section)

    ValueDefinition
    BLPBuilding Polygon
    MBDMinor Building
    BLABuilding Accessory

    TYPE
    Feature Type (Source: Mapping Section)

    ValueDefinition
    BLDBuilding (Built-up)
    BLKPolygon with no attribute
    BPUBuilding (under)
    CGACottage Area/Temporary Structure
    PDUPodium (under)
    PODPodium
    DUMDummy Line

    SOURCE
    The source from which the map data acquired and generalized (Source: Mapping Section)

    Formal codeset
    Codeset Name:SOURCE TABLE
    Codeset Source:Mapping Section

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

    MSLINK
    Reserved for future use. Set as zero (Source: Mapping Section)

    ValueDefinition
    0 

    CLASS
    Feature Class (Source: Mapping Section)

    ValueDefinition
    BLPBuilding Polygon
    MBDMinor Building
    BLABuilding Accessory

    TYPE
    Feature Type (Source: Mapping Section)

    ValueDefinition
    BLDBuilding (Built-up)
    BLKPolygon with no attribute
    BPUBuilding (under)
    CGACotage Area / Temporary Structure
    PDUPodium (under)
    PODPodium

    SOURCE
    The source from which the map data acquired and generalized (Source: Mapping Section)

    Formal codeset
    Codeset Name:SOURCE TABLE
    Codeset Source:Mapping Section

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

    MSLINK
    Reserved for future use. Set as zero (Source: Mapping Section)

    ValueDefinition
    0 

    CLASS
    Feature Class (Source: Mapping Section)

    ValueDefinition
    CONContour

    TYPE
    Feature Type (Source: Mapping Section)

    ValueDefinition
    CLSIndex Contour Line (at 100 metres interval on ground)
    CLUIndex Contour Line (suppressed)
    CNSContour Line

    SOURCE
    The source from which the map data acquired and generalized (Source: Mapping Section)

    Formal codeset
    Codeset Name:SOURCE TABLE
    Codeset Source:Mapping Section

    HEIGHT
    The contour lines, at 20 metres interval on ground, are lines of equal elevation above land surface. The contour height is in metres above the Hong Kong Principal Datum which is 1.23 metres below the mean sea level (Source: Surveyed)

    ValueDefinition
    Integer 

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

    MSLINK
    Reserved for future use. Set as zero (Source: Mapping Section)

    ValueDefinition
    0 

    CLASS
    Feature Class (Source: Mapping Section)

    ValueDefinition
    HGTElevation Height

    TYPE
    Feature Type (Source: Mapping Section)

    ValueDefinition
    MATMain Trig Station
    MITMinor Trig Station
    SPTSpot Height

    SOURCE
    The source from which the map data acquired and generalized (Source: Mapping Section)

    Formal codeset
    Codeset Name:SOURCE TABLE
    Codeset Source:Mapping Section

    HEIGHT
    Spot Height. A scattering of elevation figures in nearest metre. (Source: Surveyed)

    ValueDefinition
    Integer 

    TRIG_TYPE
    Trigonometric Type (Source: Surveyed)

    ValueDefinition
    MATMain Trig. Station
    MITMinor Trig. Station
    SPTSpot Height Only

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

    MSLINK
    Reserved for future use. Set as zero (Source: Mapping Section)

    ValueDefinition
    0 

    CLASS
    Feature Class (Source: Mapping Section)

    ValueDefinition
    BGDBurial Ground
    COMCommunity Facility
    GOVPublic Services
    HNCMedical
    PAFFacility of AFCD Park
    RMPReligious Meeting Place
    RSFRecreation and Sports Facility
    SCHSchool and College
    TSPTransport
    TELTelecommunication and Electric Supply

    TYPE
    Feature Type (Source: Mapping Section)

    ValueDefinition
    AERAeronautical Navigation Beacon
    AIRAirport
    AMKAmusement Park
    ARTMuseum/Art Gallery/Exhibition Centre/Performing Arts
    CAMCountry/Marine Park Management Centre
    CCSCountry Club
    CEMCemetery
    CHLCity Hall/Town Hall/Civic Centre
    CHUChurch
    CLIClinic/Health Centre/Dispensary
    CRECrematorium
    CSDPrison, Correctional Institution & etc.
    DEMDeemed Monument
    DMTDeclared Monument/Antiquity
    FERFerry Pier
    FETFerry Terminal
    FLOFire Lookout
    FSNFire Station
    GCOGolf Course
    GODHQ of Government Department
    GOFGovernment Offices
    HCVHoliday Camp/Village
    HOSHospital
    IGHIndoor Games Hall/Recreation Centre/Sports Centre
    JUDMagistracy/District Court
    MISMiscellaneous Training
    MONMonastery/Nunnery
    MOSMosque
    MSTMast
    NAUNautical Navigation Beacon
    PARPark
    PIEWharf
    PLGPlayground
    POFPost Office
    PPTPolice Post
    PSNPolice Station
    RCORace Course
    REAVehicular Restricted Access
    REHRehabilitation Centre
    SCUMonument/Sculpture
    SGDSports Ground
    SGNRadio Transmitting/Television Transmitting/Radar/Signal/Wireless/Microwave Station
    SIGSighting-seeing Area
    SPLSwimming Pool
    SSTEarth Satellite Station
    STDStadium
    SYNSynagogue
    TEITertiary Institute
    TMPTemple
    VPTViewing Point
    VTIVocatonal Training Institute
    WMTWholesale Market
    YACBoating/Yachting/Water Sports Centre
    ZOOZoo/Botanical Garden

    SOURCE
    The source from which the map data acquired and generalized (Source: Mapping Section)

    Formal codeset
    Codeset Name:SOURCE TABLE
    Codeset Source:Mapping Section

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

    MSLINK
    Reserved for future use. Set as zero (Source: Mapping Section)

    ValueDefinition
    0 

    CLASS
    Feature Class (Source: Mapping Section)

    ValueDefinition
    RSFRecreation and Sports Facility

    TYPE
    Feature Type (Source: Mapping Section)

    ValueDefinition
    BLKPolygon with no attribute
    GCOGolf Course
    PARPark
    SGDSports Ground
    SGISports Ground inside Park
    SGTRacetrack
    SPLSwimming Pool
    DUMDummy Line

    SOURCE
    The source from which the map data acquired and generalized (Source: Mapping Section)

    Formal codeset
    Codeset Name:SOURCE TABLE
    Codeset Source:Mapping Section

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

    MSLINK
    Reserved for future use. Set as zero (Source: Mapping Section)

    ValueDefinition
    0 

    CLASS
    Feature Class (Source: Mapping Section)

    ValueDefinition
    RSFRecreation and Sports Facility

    TYPE
    Feature Type (Source: Mapping Section)

    ValueDefinition
    BLKPolygon with no attribute
    GCOGolf Course
    PARPark
    SGDSports Ground
    SGISports Ground inside Park
    SGTRacetrack
    SPLSwimming Pool

    SOURCE
    The source from which the map data acquired and generalized (Source: Mapping Section)

    Formal codeset
    Codeset Name:SOURCE TABLE
    Codeset Source:Mapping Section

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

    MSLINK
    Reserved for future use. Set as zero (Source: Mapping Section)

    ValueDefinition
    0 

    CLASS
    Feature Class (Source: Mapping Section)

    ValueDefinition
    HYFHydrography Furniture
    POTPort
    SLNShore Line
    STCStream

    TYPE
    Feature Type (Source: Mapping Section)

    ValueDefinition
    BKWBreakwater
    CATCatchwater
    COACoastline
    COUCoastline (suppressed)
    DAMDam
    JETJetty
    MARMarina
    PRBProposed River Bank
    RLEReclamation Limit (existing)
    RLPReclamation Limit (proposed)
    SMUStream Course-major and minor (suppressed)
    STIStream Course (minor)
    STMStream Course (major)
    WERWeir

    SOURCE
    The source from which the map data acquired and generalized (Source: Mapping Section)

    Formal codeset
    Codeset Name:SOURCE TABLE
    Codeset Source:Mapping Section

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

    MSLINK
    Reserved for future use. Set as zero (Source: Mapping Section)

    ValueDefinition
    0 

    CLASS
    Code of Feature Class (Source: Mapping Section)

    ValueDefinition
    EWBEnclosed Water Body
    STCStream

    TYPE
    Feature Type (Source: Mapping Section)

    ValueDefinition
    BLKPolygon with no attribute
    PONPond/Moat
    RESReservoir
    SRCService Reservoir (covered)
    SROService Reservoir (open)
    SRPService Reservoir (playground above)
    STOStream Course (open)/Nullah
    STSStream Course (Rocky Stream Bed)
    STUStream Course - open & rocky(suppressed)
    DUMDummy Line

    SOURCE
    The source from which the map data acquired and generalized (Source: Mapping Section)

    Formal codeset
    Codeset Name:SOURCE TABLE
    Codeset Source:Mapping Section

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

    MSLINK
    Reserved for future use. Set as zero (Source: Mapping Section)

    ValueDefinition
    0 

    CLASS
    Code of Feature Class (Source: Mapping Section)

    ValueDefinition
    EWBEnclosed Water Body
    STCStream

    TYPE
    Feature Type (Source: Mapping Section)

    ValueDefinition
    BLKPolygon with no attribute
    PONPond/Moat
    RESReservoir
    SRCService Reservoir (covered)
    SROService Reservoir (open)
    SRPService Reservoir (playground above)
    STOStream Course (open)/Nullah
    STSStream Course (Rocky Stream Bed)
    STUStream Course (suppressed)

    SOURCE
    The source from which the map data acquired and generalized (Source: Mapping Section)

    Formal codeset
    Codeset Name:SOURCE TABLE
    Codeset Source:Mapping Section

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

    PLAC.TATCHI
    Annotation Attribute Table of PLAC for Geographical Place name in Chinese (Source: ARC/INFO)

    MSLINK
    Reserved for future use. Set as zero (Source: Mapping Section)

    ValueDefinition
    0 

    CLASS
    Feature Class (Source: Mapping Section)

    ValueDefinition
    HYNHydrographic Name
    TONTopographic Name
    SETSettlement
    SITCargo Handling Basin/Shipyard/Site Name

    TYPE
    Feature Type (Source: Mapping Section)

    ValueDefinition
    BAYBAY/Channel/Harbour/Sea
    BEABeach
    DISDistrict/Area
    ESTEstate
    HILHill/Mountain/Pass
    ISLIsland
    ISTIndustrial site
    RESReservoir
    RIVRiver
    ROCCape/Promontory/Rock/Reef/Waterfall/Cliff
    SITCargo Handling Basin/Shipyard/Site Name
    SUSSub-estate
    THATemporary Housing Area/Cottage Area
    TOWTown
    TYPTyphoon Shelter
    VILVillage
    WEFWaterfall

    SOURCE
    The source from which the map data acquired and generalized (Source: Mapping Section)

    Formal codeset
    Codeset Name:SOURCE TABLE
    Codeset Source:Mapping Section

    PLAC.TATENG
    Annotation Attribute Table of PLAC for Geographical Place name in English (Source: ARC/INFO)

    MSLINK
    Reserved for future use. Set as zero (Source: Mapping Section)

    ValueDefinition
    0 

    CLASS
    Feature Class (Source: Mapping Section)

    ValueDefinition
    HYNHydrographic Name
    TONTopographic Name
    SETSettlement
    SITCargo Handling Basin/Shipyard/Site Name

    TYPE
    Feature Type (Source: Mapping Section)

    ValueDefinition
    BAYBAY/Channel/Harbour/Sea
    BEABeach
    DISDistrict/Area
    ESTEstate
    HILHill
    ISLIsland
    ISTIndustrial site
    RESReservoir
    RIVRiver
    ROCCape/Promontory/Rock/Reef/Waterfall/Cliff
    SITCargo Handling Basin/Shipyard/Site Name
    SUSSub-estate
    THATemporary Housing Area/Cottage Area
    TOWTown
    TYPTyphoon Shelter
    VILVillage
    WEFWaterfall

    SOURCE
    The source from which the map data acquired and generalized (Source: Mapping Section)

    Formal codeset
    Codeset Name:SOURCE TABLE
    Codeset Source:Mapping Section

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

    MSLINK
    Reserved for future use. Set as zero (Source: Mapping Section)

    ValueDefinition
    0 

    CLASS
    Feature Class (Source: Mapping Section)

    ValueDefinition
    RAIRail
    RSNRailway Station
    RLFRailway Furniture

    TYPE
    Feature Type (Source: Mapping Section)

    ValueDefinition
    CCRCable Car Rail
    LRTLight Rail
    MSURail Station (underground)
    MTRRailway (above ground)
    MTURailway (under ground)
    PKTPeak Tram Rail
    RAGRailway Under Construction (above ground)
    RAPRailway (proposed)
    RAURailway Under Construction (under/underground)
    RBRRailway Bridge
    RSGRailway Station under Construction (above ground)
    RSPRailway Station (proposed)
    RSURailway Station under Construction (under/underground)
    RTPTunnel Portal for Rail
    TRMTramway

    SOURCE
    The source from which the map data acquired and generalized (Source: Mapping Section)

    Formal codeset
    Codeset Name:SOURCE TABLE
    Codeset Source:Mapping Section

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

    MSLINK
    Reserved for future use. Set as zero (Source: Mapping Section)

    ValueDefinition
    0 

    CLASS
    Feature Class (Source: Mapping Section)

    ValueDefinition
    SURSurface Characteristics

    TYPE
    Feature Type (Source: Mapping Section)

    ValueDefinition
    BOURock/Boulder
    CLFCliff Top/Waterfall/Quarry Top
    SBOTide Rock/Boulder

    SOURCE
    The source from which the map data acquired and generalized (Source: Mapping Section)

    Formal codeset
    Codeset Name:SOURCE TABLE
    Codeset Source:Mapping Section

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

    MSLINK
    Reserved for future use. Set as zero (Source: Mapping Section)

    ValueDefinition
    0 

    CLASS
    Feature Class (Source: Mapping Section)

    ValueDefinition
    SURSurface Characteristics

    TYPE
    Feature Type (Source: Mapping Section)

    ValueDefinition
    BLKPolygon with no attribute
    MUDMud Flat
    SANSand
    SLOSlope (large)
    SLSSlope (small)
    DUMDummy Line

    SOURCE
    The source from which the map data acquired and generalized (Source: Mapping Section)

    Formal codeset
    Codeset Name:SOURCE TABLE
    Codeset Source:Mapping Section

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

    MSLINK
    Reserved for future use. Set as zero (Source: Mapping Section)

    ValueDefinition
    0 

    CLASS
    Feature Class (Source: Mapping Section)

    ValueDefinition
    SURSurface Characteristics

    TYPE
    Feature Type (Source: Mapping Section)

    ValueDefinition
    BLKPolygon with no attribute
    MUDMud Flat
    SANSand
    SLOSlope (large)
    SLSSlope (small)

    SOURCE
    The source from which the map data acquired and generalized (Source: Mapping Section)

    Formal codeset
    Codeset Name:SOURCE TABLE
    Codeset Source:Mapping Section

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

    MSLINK
    Reserved for future use. Set as zero (Source: Mapping Section)

    ValueDefinition
    0 

    CLASS
    Feature Class (Source: Mapping Section)

    ValueDefinition
    RDFRoad Furniture
    ROARoad, Street, Avenues, Lanes, Terraces, etc
    FTPFootpath and Trail

    TYPE
    Feature Type (Source: Mapping Section)

    ValueDefinition
    BRIFootbridge over Water
    EXDExpressway + Secondary Road (double)
    EXEExpressway + Parallel Elevated Road
    EXMExpressway + Main Road
    EXPExpressway
    EXUExpressway + Unsurfaced Road
    FPIFootpath
    MOPMain Road over Podium
    MRDMain Road
    MSDMain Road + Secondary Road (double)
    MSSMain Road + Secondary Road (single)
    NRDNon-motorable Road
    PCRRoad Permanently Closed
    PEMParallel Elevated Road + Main Road
    PERParallel Elevated Road
    PESParallel Elevated Secondary Road
    PSRParallel Elevated Road + Secondary Road
    PSSSecondary Road (double) + Parallel Elevated Secondary Road
    RUBRoad under Structure
    RUCRoad under Construction
    RUNRunway
    SOPSecondary Road over Podium
    SRDSecondary Road (double)
    SRNSecondary Road (single) + Non-motorable Road
    SRSSecondary Road (single)
    SRUSecondary Road (single) + Unsurfaced Road
    TALTrail
    TASTrail (suppressed)
    TIPTrack Inside Park
    TPOTunnel Portal for Road
    TUNTunnel/Cross Harbour Tunnel
    URDUnsurfaced Road/Track
    WALWalkway/Escalator/Pedestrian Bridge

    SOURCE
    The source from which the map data acquired and generalized (Source: Mapping Section)

    Formal codeset
    Codeset Name:SOURCE TABLE
    Codeset Source:Mapping Section

    ST_CODE
    Street code for tunnel. The value is used for identifying different tunnel centre lines and presenting those lines into a double peck-line symbology with specific line width (Source: LIC)

    Formal codeset
    Codeset Name:STREET_CODE
    Codeset Source:LIC

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

    MSLINK
    Reserved for future use. Set as zero (Source: Mapping Section)

    ValueDefinition
    0 

    CLASS
    Feature Class (Source: Mapping Section)

    ValueDefinition
    DRSDrainage Service
    ELEElectric Supply
    GASGas Works

    TYPE
    Feature Type (Source: Mapping Section)

    ValueDefinition
    GOTGas Tank/Oil Tank/Kerosene Store
    PIPWater Pipeline
    PIUPipeline (under)
    POWPowerline
    PYLPowerline with Pylon
    WTKWater Tank/Treatment Works
    WTLWater Tunnel

    SOURCE
    The source from which the map data acquired and generalized (Source: Mapping Section)

    Formal codeset
    Codeset Name:SOURCE TABLE
    Codeset Source:Mapping Section

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

    MSLINK
    Reserved for future use. Set as zero (Source: Mapping Section)

    ValueDefinition
    0 

    CLASS
    Feature Class (Source: Mapping Section)

    ValueDefinition
    VEGVegetation

    TYPE
    Feature Type (Source: Mapping Section)

    ValueDefinition
    BLKPolygon with no attribute
    CULCultivation
    MANMangrove
    SWASwamp/Marsh
    WOOWoodland
    DUMDummy Line

    SOURCE
    The source from which the map data acquired and generalized (Source: Mapping Section)

    Formal codeset
    Codeset Name:SOURCE TABLE
    Codeset Source:Mapping Section

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

    MSLINK
    Reserved for future use. Set as zero (Source: Mapping Section)

    ValueDefinition
    0 

    CLASS
    Feature Class (Source: Mapping Section)

    ValueDefinition
    VEGVegetation

    TYPE
    Feature Type (Source: Mapping Section)

    ValueDefinition
    BLKPolygon with no attribute
    CULCultivation
    MANMangrove
    SWASwamp/Marsh
    WOOWoodland

    SOURCE
    The source from which the map data acquired and generalized (Source: Mapping Section)

    Formal codeset
    Codeset Name:SOURCE TABLE
    Codeset Source:Mapping Section


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?

    Mapping Section/Land Information Centre, Survey and Mapping Office, Lands Department
    Senior Cartographer/Mapping, Lands Department
    22/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 3500 (voice)
    (852) 2116 0773 (FAX)
    scgrmap@landsd.gov.hk

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


Why was the data set created?

The data set is widely deployed for the purpose of facilitating the HKSAR Government and business enterprises in the private sectors to implement systems for community services; and decision supporting systems for administration, management and planning. The versatile and up-to-date digital map also serves as the central repository for all other GIS and Mapping applications.


How was the data set created?

  1. From what previous works were the data drawn?

    Source Code = 1 (source 1 of 27)
    Survey and Mapping Office, Lands Department, Unknown, Geodetic/GPS data: Survey and Mapping Office, Lands Department, Hong Kong Special Administrative Region.

    Type_of_Source_Media: Any type
    Source_Contribution: Spatial and attribute information

    Source Code = 3 (source 2 of 27)
    Survey and Mapping Office, Lands Department, Unknown, Gazetted/Deposited information; Place name approved by Geographical Place Name Board: Survey and Mapping Office, Lands Department, Hong Kong Special Administrative Region.

    Type_of_Source_Media: Any type
    Source_Contribution: Spatial and attribute information

    Source Code = 5 (source 3 of 27)
    Survey and Mapping Office, Lands Department, Unknown, 1:1000 Mapping System: B1000 B1000, Survey and Mapping Office, Lands Department, Hong Kong Special Administrative Region.

    Type_of_Source_Media: On-line
    Source_Scale_Denominator: 1000
    Source_Contribution: Spatial and attribute information

    Source Code = 6 (source 4 of 27)
    Survey and Mapping Office, Lands Department, Unknown, 1:1000 Basic Mapping System data with minor amendment: B1000 B1000, Survey and Mapping Office, Lands Department, Hong Kong Special Administrative Region.

    Type_of_Source_Media: On-line
    Source_Scale_Denominator: 1000
    Source_Contribution: Spatial and attribute information

    Source Code = 7 (source 5 of 27)
    Survey and Mapping Office, Lands Department, Unknown, GS Data/BS Data/Data verified by DSO: Survey and Mapping Office, Lands Department, Hong Kong Special Administrative Region.

    Type_of_Source_Media: On-line
    Source_Contribution: Spatial and attribute information

    Source Code = 8 (source 6 of 27)
    Survey and Mapping Office, Lands Department, Unknown, GS Data/BS Data with minor amendment: Survey and Mapping Office, Lands Department, Hong Kong Special Administrative Region.

    Type_of_Source_Media: On-line
    Source_Contribution: Spatial and attribute information

    Source Code = 9 (source 7 of 27)
    Survey and Mapping Office, Lands Department, Unknown, Cadastral Information System: CIS CIS, Survey and Mapping Office, Lands Department, Hong Kong Special Administrative Region.

    Type_of_Source_Media: On-line
    Source_Scale_Denominator: 1000
    Source_Contribution: Spatial and attribute information

    Source Code = 11 (source 8 of 27)
    Survey and Mapping Office, Lands Department, Unknown, Photogrammetric data from low altitude imagery (i.e. < 5000' aerial photograph): Survey and Mapping Office, Lands Department, Hong Kong Special Administrative Region.

    Type_of_Source_Media: CD-ROM
    Source_Contribution: Spatial and attribute information

    Source Code = 13 (source 9 of 27)
    Survey and Mapping Office, Lands Department, Unknown, Geo-reference Database maintained by LIC: Survey and Mapping Office, Lands Department, Hong Kong Special Administrative Region.

    Type_of_Source_Media: On-line
    Source_Contribution: Spatial and attribute information

    Source Code = 14 (source 10 of 27)
    Survey and Mapping Office, Lands Department, Unknown, Geo-reference data with minor amendment: Survey and Mapping Office, Lands Department, Hong Kong Special Administrative Region.

    Type_of_Source_Media: On-line
    Source_Contribution: Spatial and attribute information

    Source Code = 15 (source 11 of 27)
    Survey and Mapping Office, Lands Department, Unknown, B5000 Mapping System: B5000 B5000, Survey and Mapping Office, Lands Department, Hong Kong Special Administrative Region.

    Type_of_Source_Media: On-line
    Source_Scale_Denominator: 5000
    Source_Contribution: Spatial and attribute information

    Source Code = 16 (source 12 of 27)
    Survey and Mapping Office, Lands Department, Unknown, B5000 Mapping System data with minor amendment: B5000 B5000, Survey and Mapping Office, Lands Department, Hong Kong Special Administrative Region.

    Type_of_Source_Media: On-line
    Source_Scale_Denominator: 5000
    Source_Contribution: Spatial and attribute information

    Source Code = 17 (source 13 of 27)
    Survey and Mapping Office, Lands Department, Unknown, Ortho-rectified data (Orthophoto) from high altitude imagery (i.e. 8000' aerial photograph): Survey and Mapping Office, Lands Department, Hong Kong Special Administrative Region.

    Type_of_Source_Media: CD-ROM
    Source_Contribution: Spatial and attribute information

    Source Code = 20 (source 14 of 27)
    Chinese National Survey and Mapping Bureau, Unknown, Information from Chinese National Survey and Mapping Bureau.

    Type_of_Source_Media: Any type
    Source_Contribution: Spatial and attribute information

    Source Code = 22 (source 15 of 27)
    Agriculture, Fisheries and Conservation Department (AFCD), (AA), Airport Authority , (BD), Buildings Department , Civil Aviation Department (CAD), (HyD), Highways Department , and Food and Environment Hygiene Department (FEHD), Unknown, Trail Map from AFCD; Large-scale plans from AA; Building Plan from BD; Aeronautical Chart from CAD; Engineering Plan from HyD;Facility information from FEHD.

    Type_of_Source_Media: Any type
    Source_Contribution: Spatial and attribute information

    Source Code = 24 (source 16 of 27)
    Land Administration Office (LAO) of Lands Department, Leisure and Cultural Services Department (LCSD), (MD), Marine Department , (PlanD), Planning Department , and Rating and Valuation Department (R&V), Unknown, New estate and building from LAO of Lands Department; Facility information from LCSD; Nautical Chart from MD; OZP, ODP and etc from PlanD; Building Name from R&V.

    Type_of_Source_Media: Any type
    Source_Contribution: Spatial and attribute information

    Source Code = 26 (source 17 of 27)
    Any Related Government Organization, Unknown, Information from Related Government Organization.

    Type_of_Source_Media: Any type
    Source_Contribution: Spatial and attribute information

    Source Code = 27 (source 18 of 27)
    Authority, Relevant Private , Unknown, Information from relevant private authority.

    Type_of_Source_Media: Any type
    Source_Contribution: Attribute information

    Source Code = 28 (source 19 of 27)
    partners, MISI, Unknown, Emergency helpline/Telephone kiosk/New Estate and etc..

    Type_of_Source_Media: Any type
    Source_Contribution: Attribute information

    Source Code = 30 (source 20 of 27)
    Survey and Mapping Office, Lands Department, Unknown, Conversion from 1:20000 hard copy: B20000 B20000, Survey and Mapping Office, Lands Department, Hong Kong Special Administrative Region.

    Type_of_Source_Media: Paper
    Source_Scale_Denominator: 20000
    Source_Contribution: Spatial and attribute information

    Source Code = 32 (source 21 of 27)
    Survey and Mapping Office, Lands Department, Unknown, Low altitude imagery.

    Type_of_Source_Media: CD-ROM, On-line
    Source_Contribution: Spatial and attribute information

    Source Code = 34 (source 22 of 27)
    Survey and Mapping Office, Lands Department, Unknown, High altitude imagery.

    Type_of_Source_Media: CD_ROM, On-line
    Source_Contribution: Spatial information

    Source Code = 36 (source 23 of 27)
    Survey and Mapping Office, Lands Department, Unknown, Oblique imagery.

    Type_of_Source_Media: CD-ROM
    Source_Contribution: Spatial information

    Source Code = 40 (source 24 of 27)
    Any, Unknown, Brochure, Newspaper and Magazine.

    Type_of_Source_Media: Paper
    Source_Contribution: Attribute information

    Source Code = 42 (source 25 of 27)
    Any, Unknown, Local knowledge.

    Type_of_Source_Media: None
    Source_Contribution: Attribute information

    Source Code = 44 (source 26 of 27)
    Any, Unknown, Publication from Private Sector (non-verify data).

    Type_of_Source_Media: Paper
    Source_Contribution: Attribute information

    Source Code = 50 (source 27 of 27)
    Any, Unknown, Telephone enquiry.

    Type_of_Source_Media: None
    Source_Contribution: Attribute information

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

    Date: 2001 (process 1 of 12)
    B20000 version 2.0 is implemented

    Date: 2002 (process 2 of 12)
    Version 2.0.2 is launched

    Date: 2004 (process 3 of 12)
    Version 2.0.3 is launched

    Date: 2004 (process 4 of 12)
    Version 2.0.4 is launched

    Date: 2005 (process 5 of 12)
    Version 2.0.5 is launched

    Date: 2005 (process 6 of 12)
    Version 2.0.6 is launched

    Date: 2006 (process 7 of 12)
    Version 2.0.7 is launched

    Date: 2007 (process 8 of 12)
    Version 2.0.8 is launched

    Date: 2008 (process 9 of 12)
    Version 2.0.9 is launched

    Date: 2009 (process 10 of 12)
    Version 2.1.0 is launched

    Date: 2010 (process 11 of 12)
    Version 2.1.1 is launched

    Date: 2014 (process 12 of 12)
    Version 2.1.2 is launched with the PARK layer is removed

  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?

    Everyday the core database (M10000) of the Small Scale Mapping System (SSMS) are updated in accordance with the daily changes in Computerized Land Information System (CLIS) data, viz. 1:1000 scale basic map (B1000) and the Geo-reference data. This approach ensures the data currency of the SSMS with respect to the CLIS data source.
    Validation tools are developed for the purpose of validating the SSMS data with reference to those of the CLIS and other relevant sources. On the other hand, software utility would also be deployed to check the accuracy of the SSMS annotations in map products in different scales.
    The B20000, which is derived from the M10000, comprises the graphic and attributes that should pass through a validation process with respect to M10000 before the dissemination to other Offices, Government Departments and public.

  2. How accurate are the geographic locations?

    Over 90% B20000 data are derived from CLIS data [B1000 basic map data from CLIS]. Daily updating has been deployed in M10000 of SSMS to ensure the data currency of the SSMS with respect to the CLIS data source. There is a dependency on the B1000 database because point features in B20000 are extracted from B1000 whilst linear features are generalized with not more than 10 percent of the points tested shall be in error by more than 0.8mm, measured on the publication (1:20000) scale. Polygons are generated in 1:20000 accuracy but retained the characteristic of the footprint. Road widths are exaggerated, with reference to the centre line of B1000 basic map, to the nearest 10m, 15m and 20m for clarity of presentation.(Note: These limits of Horizontal Accuracy shall apply in all cases to positions of well-defined points only.)

  3. How accurate are the heights or depths?

    Vertical Accuracy, as applied to elevation features on 1:20000 publication scale, shall be such that not more than 10 percent of the elevations tested shall be in error more than one-half the contour interval.

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

    The entire territory of Hong Kong is represented by a total of 17 tiles in 1:20000 scale covers. They have been completed and are regularly updated in 6-month revision cycle.

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

    Whereas shades are maintained in DGN, DWG and DXF formats, polygon and chain node topology are presented in ArcInfo format.


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 upon purchase of the data. The licensee is permitted to use the data from the date as set out in the Licence. The licensee must obtain written consent from the Government and pay the necessary royalty charges before he can distribute the digital data in any form to a 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 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 purchased under the Licence shall be subject to the constraints, purposes and specific clauses that are stipulated in the contract. The digital data can be provided to government departments and their consultants are for internal use and project purpose respectively. Such data shall not be distributed in part or in whole and in whatever form or 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 (FGDC-STD-001-1998)


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