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

[Eugene Alvin Villar]

On Fri, Dec 31, 2010 at 7:12 AM, Steve Doerr
<steve.doerr at blueyonder.co.uk> wrote:
> On 30/12/2010 22:50, Diego Woitasen wrote:
>
>> Yes, we'll map the restrictions. I reviewed the local law and
>> sometimes you can turn left so we must tag the restriction on every
>> case.
>
> Does it have to be every intersection, or could you tag a default on the way
> or relation and then tag the exceptions?
>
> How would routers feel about that?

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.