Frederik Ramm <[email protected]> writes: > Peter Budny wrote: >> I'm building a robot as a school project that will use data from TIGER >> imports and automatically create route relations for US state roads. > > My advice is not to do it; if it can be done automatically, route > relations are not required
If route relations are not required, then what are http://wiki.openstreetmap.org/wiki/Relation:route#Road_Routes for? They /are/ required, because roads may be discontiguous in various ways: a road may change names (e.g. Main Street North becomes Main Street South, but to a driver or pedestrian, both are just one continuous Main Street), or even be physically discontiguous (some state and even US Highways do this). So far it is being done by hand. The US Interstates and US Highways are mostly done, but there are so many state roads in the US, it is a daunting task to finish manually. Using TIGER data, we can automate the process, but the bot's work will not be perfect; humans will still have to check it and make a few corrections. Still, if it does 95% of the work for them correctly, this is pretty good IMO. (After all, TIGER data itself is not even close to 95% correct.) -- Peter Budny \ Georgia Tech \ CS PhD student \ _______________________________________________ dev mailing list [email protected] http://lists.openstreetmap.org/listinfo/dev
