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March/April 2003
Mapping for the future
Ordnance Survey has released what it is claiming is "the definitive geographic dataset that will underpin the future of transport planning". Features of the updated OS MasterMap range include an Integrated Transport Network layer, with 4 million links representing the precise alignment of every road in Britain, and giving digital information on the type and nature of each stretch of road; and a Road Routing Information database, with information on bridge height and vehicle restrictions, traffic calming, one-way roads and essential information about each junction. 
The launch coincides with the first release of orthorectified aerial photography from the new Imagery Layer of OS MasterMap. OS says it will be possible to integrate data from the two layers with all existing OS MasterMap layers. So users will be able to mix and match the exact data they need for a particular application with their own or other third party information.
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