Geobase is a filament network of straight line segments commonly known as “edges” whose digitization is usually done at the centre of the street. A section is then a section of road with homogeneous characteristics described mainly by the following attributes: an official and valid place name, address ranges and a reference to administrative boundaries (boroughs, municipal boundaries, neighbourhoods as the case may be). Track Classification Table፦ Class 9 - Projected Street - Class 8 - Highways - Class 7 - Main Arteries - Class 6 - Secondary Arteries - Class 5 - Collectors - Class 4 - Private - Class 3 - Dock - Class 2 - Business Places - Class 1 - Certain pedestrian lanes - Class 0 - Local Streets The [double geobase] (./geobase-double) and the [geobase poles] (./geobase-pole) are also available on the portal.

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