On Fri, Dec 31, 2010 at 3:25 PM, Hendrik Oesterlin <[email protected]> wrote: > "Eugene Alvin Villar" [email protected] wrote on 31/12/2010 at 13:11:26 +1100 > subject "[OSM-talk] Turn left restriction on two way highways" : > > >> I remember a suggestion like this a long time ago. Tagging a way with >> restriction=no_left_turn (especially if it has a oneway=yes tag) would >> specify a default for that particular way only. This is much easier >> for routers or preprocessors to adopt. > > But today it is not supported by any routing engine I know of. > Even the Garmin file format created by the mkgmap tool cant't handle > this today.
Not currently, but preprocessors such as mkgmap can adopt this. Garmin routers themselves have *no* conception of turn restriction relations as they exist in OSM--it is mkgmap that translates these turn restrictions into the format that Garmin understands. So it should be just an additional code in mkgmap to support restriction=no_left_turn tags on ways. _______________________________________________ talk mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk
