[OSM-talk] Traffic Signs

Maarten Deen mdeen at xs4all.nl
Wed Sep 30 09:46:02 UTC 2015


On 2015-09-30 11:29, Martin Koppenhoefer wrote:
> 2015-09-30 11:25 GMT+02:00 Maarten Deen <mdeen at xs4all.nl>:
> 
>> The city of Amsterdam is very good at this. One-way streets very
>> often have no signs at the side where you are allowed to enter but
>> have a sign "closed for motorized traffic with more than two wheels"
>> on the other side.
>> 
>> Effectively it is not a one-way street because cars are still
>> allowed to turn around and you can drive in reverse (not allowed in
>> a one-way street).
>> 
>> How would you put this as a restriction in OSM? motorcar:backward=no
>> or something?
> 
> what about a turn restriction relation via the node where you are not
> allowed to enter?

That turn restriction does not exist in real life, so you shouldn't add 
it in OSM ;)

But suppose you would solve it like that: you can enter an OSM way from 
two or three other ways (T-junction or crossing), do you then have to 
make two or three turn restrictions?

Regards,
Maarten




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