[OSM-talk] Turn left restriction on two way highways

[Alan Mintz]

At 2010-12-30 18:11, Eugene Alvin Villar wrote:
>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.

And much easier for editors. I had to break Whittier Blvd into many pieces 
here: 
http://www.openstreetmap.org/?lat=34.0171&lon=-118.1546&zoom=15&layers=M to 
add turn restrictions for the anti-cruising measures. There are streets 
near downtown LA that have no-left during peak hours across many 
intersections in a row to speed up traffic, which could benefit from this, too.

Syntax should probably should be something like 
restriction:<role>=<restriction>[;<restriction>...] just to be clear, 
though I can only picture it being used for the "from" role at the moment.

--
Alan Mintz <Alan_Mintz+OSM at Earthlink.net>