It's true that most ramps in the U.S. don't have names, but I do know of a few that appear to. In particular, the I-4/I-75 junction in Tampa appears to have named ramps.
http://www.mapillary.com/map/im/K-n1LMSGIwseE2TPAa63wQ/photo -jack On July 30, 2015 4:51:17 PM EDT, Paul Norman <[email protected]> wrote: >On 7/30/2015 7:15 AM, Brett Lord-Castillo wrote: >> Related to this, I also wanted to look for some ideas on how to >> generate names for the unnamed ramps in an OSM extract. >Most ramps in parts of the US I've traveled don't have name. What they >do have is destinations, which indicate the information on the signs. > >As an example, https://www.openstreetmap.org/way/32192639 has no name, >but has destination=Lynden;Birch Bay. There is a sign indicating that >this exit ramp leads to those places. >http://www.openstreetmap.org/user/mvexel/diary/22419 provides some >more >information, and a picture of a complicated sign. > >If you wanted to, you could label ramps with the destination >information. This would be done in your processing toolchain - and it >depends on what you want to feed the data into. If you were using >osm2pgsql, I'd suggest Lua transforms, but if you're using a different >ETL toolchain, there's probably a way to transform the data. > >> These ramps are extremely import: a large number of traffic accidents > >> occur on them and we must dispatch to exactly the right ramp in a way > >> that can be quickly identified from information provided by a caller >> (e.g. exit number is not helpful if the caller is already on the >ramp). >Do have any data on how callers are describing their current location >when they are on a ramp? My guess is they would describe the >destination >of the ramp or the exit number they took. Both of these are in OSM. > >I can think of some ramps which are long and in remote areas where if >you stop at the right place and look around, there are no signs to >indicate where you are. If you get a call from one of these locations >and the person doesn't know the area, there's probably no good way for >them to describe where they are. > >_______________________________________________ >Talk-us mailing list >[email protected] >https://lists.openstreetmap.org/listinfo/talk-us -- Typos courtesy of fancy auto-spell technology.
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