From the early 2000s when the China Expressway Atlas (CEA) began to distinguish National Main Routes from Provincial Expressways, and thereafter when 'Superior' Highways began appearing, they being better than ordinary highways, but perhaps not… Read more.
Vector
Posted:
comprehensive road network file; roads, streets, etc.
Posted:
The SRTM tiles are DEM data divided in to one degree blocks for the surface of the earth. The data is divided into two resolutions, one at 3 arc seconds (90m) and one at 30 arc seconds (900m). 80% of the earths surface is covered for all of the area… Read more.
Posted:
Posted:
These extensive road network and rail files were deposited into the University of Toronto Map and Data Library collection by Professor Matthew Turner, formerly of the Economics Department, University of Toronto. The data were created for and… Read more.
Posted:
The SRTM tiles are DEM data divided in to one degree blocks for the surface of the earth. The data is divided into two resolutions, one at 3 arc seconds (90m) and one at 30 arc seconds (900m). 80% of the earths surface is covered for all of the area… Read more.
Posted: