Roy Wallace wrote: > >> Routing software that is aware of the local laws of each country seems >> obvious. > > Um...what??? That will not write itself. Do you expect us to > successfully digitize and maintain a database of all laws of all > countries? In a wiki, even? That's ambitious! I'd prefer to stick to > mapping what's on the ground.
If we map what's on the ground, then we create a map database containing "here is an oneway sign, over there is a cycleway sign". That's nice, but if I want to do routing with this, I need information such as "can I use way w in direction d with vehicle v?" - and in order to know this, I need another database that tells me what a sign means in that part of the world (for example: are pedestrians allowed to walk on ways with a cycleway sign?). If we don't want a traffic law database, then we need to tag the required information directly. But then mappers don't just map physical reality. They interpret the signs (and other information) using their - hopefully correct - knowledge of the laws. Both can work, but /someone/ has to do the transfer from reality to road network attributes - either software (using a traffic laws DB) or humans (mapping more than just what's on the ground). Tobias Knerr _______________________________________________ talk mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk
