On Thu, 2006-08-31 at 20:08 +0530, Rony wrote:
This system would be a local setup and need not be linked to a map. GPS may not give information of foot bridges, subways and other local structures.
Your setup may be local and you may choose to manually configure each of the many transmitters at each location but you'll still need a good map somewhere that will ensure that the information being sent out is actually accurate.
GPS should give you any information that is available on the map.
-gabin