We (the Telenav OSM team) have been tagging ramps consistently with destination= to displace the limited exit_to= on the junction node (think exit_to:left and exit_to:right mess). The destination= value would reflect whatever is on the exit sign, and may be supported by destination:ref if the exit sign would include a route shield, or even destination:ref:to in cases where the exit sign indicates a connection to another numbered route further afield (http://taginfo.openstreetmap.org/keys/destination%3Aref%3Ato#map). Martijn van Exel skype: mvexel
On Fri, Jul 31, 2015 at 2:51 AM, Minh Nguyen <[email protected]> wrote: > On 2015-07-30 13:51, Paul Norman 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. > > > Incidentally, the Ohio Department of Transportation does post a blue sign on > every highway ramp, bearing a heavily abbreviated (devowelized, actually) > name of the ramp, for example: > > Ramp > E 275 > To > N 75 > > or: > > Ramp > E 275 > To > Lvldmdra > > In cases where the ramp belongs to multiplexed routes, you may see multiple > ramp name signs side by side: <http://www.roadfan.com/3bluemrk.JPG> > > These signs are specifically intended to help motorists pinpoint their > location when calling for help. (If emergency responders look for the wrong > ramp in a given junction, they might end up wasting precious minutes trying > to circle back.) > > I've been hesitant to put these names in the `name` tag because they clutter > up ordinary use cases like map display and navigation. I'm inclined to use > `official_name` here and expand all abbreviations (per OSM convention). > > -- > [email protected] > > > > _______________________________________________ > Talk-us mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/talk-us _______________________________________________ Talk-us mailing list [email protected] https://lists.openstreetmap.org/listinfo/talk-us
