GEOGIS

GEOGIS is an infrastructure database used by Network Rail. ==Codes== The system uses the following codes for four-digit Track IDs to identify which line at any location is referred to. ===First number – Track Direction=== ===Second number – Track Use=== ===3rd & 4th number – Track Number=== Usually numbered sequentially. It can be any number...
Found on http://en.wikipedia.org/wiki/GEOGIS

GEOGIS

Geography and Infrastructure System
Found on http://www.encyclo.co.uk/local/20497
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