Datasets

This dataset contains old maps of Hong Kong, including “Plan of the City of Victoria Hong Kong (1889)”, “Victoria Hong Kong (1897)”, “Kowloon Peninsula (1892, 1947, 1963 & 1970)”, “Hong Kong (1927 & 1957)”, “Sha Tin (1904)” and “Tsuen Wan (1958)”. The map images scanned from paper maps are geo-referenced to the Hong Kong 1980 Grid coordinate system.

Hong Kong Special Administrative Region 1:50 000 Topographic Map

1:1,000 topographic maps including address, buildings, hydrography, land cover, place of interest, relief, transportation and utilities information in FGDB, DWG, DGN, GML and GeoTIFF formats.

The DTM is a digital terrain model of the Hong Kong Special Administrative Region. It shows the topography of terrain (including non-ground information such as elevated roads and bridges) in 5-metre raster grid with an accuracy of ±5m. If land area is covered by vegetation, the terrain will be depicted by the height of vegetation.

Hong Kong Special Administrative Region 1:200 000 Topographic Map

300 selected old photos of Hong Kong taken in the 1950s - 1970s showing the street views of Hong Kong, with district name tagged in the “Title” field of image file, some with street and building names.

This Application Programming Interface (API) provides instant conversion between HK 1980 Grid Coordinates (Northing and Easting) and WGS84 (ITRF96) Geodetic Coordinates (Latitude and Longitude). The conversion methods, parameters and formulas used in the coordinate conversion tool provided in this API are maintained by the Survey and Mapping Office, Lands Department. It is only applicable for coordinates within Hong Kong. Users SHOULD NOT use the results for applications requiring precise point positions. Transformation between datums does not improve the accuracy. In most cases, the transformation coordinates would be less accurate, because of the errors in the transformation and projection computation would be added to the results. Please seek advice from professional land surveyors. For enquiry, please contact the Geodetic Survey Section, Survey and Mapping Office, Lands Department. For details, please refer to User Manual (English Only): http://www.geodetic.gov.hk/transform/tformAPI_manual.pdf

Lands Department captures aerial photographs at various flying heights over different years covering the whole territory of Hong Kong. DAP-L0 is a digital compressed image of these aerial photographs which is saved in 300 dpi image resolution in JPEG format.

Digital data of 3D models featuring geometry model, texture map and textual attribute to represent the geometrical shape, appearance and position of three types of ground objects i.e. Building, Infrastructure and Terrain in Max, 3ds, FBX and VRML formats.

Government Land Allocation (GLA) is a site allocated to government bureau/department for projects or use (e.g. treatment plants, service reservoirs, depots, works areas etc.). The information provided includes GLA number, type, allocatee, user type etc. This dataset is one of the datasets in the Land Parcel Framework Spatial Data Theme.

The Coordinate Reference System maintained by Lands Department includes both horizontal and vertical datums. HK1980 Geodetic Datum and HK1980 Grid System are the horizontal datum while the Hong Kong Principal Datum (HKPD) is the vertical datum.

Pedestrian Network is a set of 3D line features derived from road features and road furnitures from Lands Department and Transport Department. A number of attibutes are associated with the pedestrian network such as spatially related street names. Besides, the pedestrian network includes information like wheelchair accessibilty and obstacles to facilitate the digital inclusion for the needy.