Aun Johnsen (via Webmail) schrieb:
> On Thu, 23 Apr 2009 22:19:39 -0700, Paul Johnson <ba...@ursamundi.org>
> wrote:

> http://maps.google.com/?ie=UTF8&ll=44.92934,-123.02527&spn=0.000872,0.002414&t=k&z=19
>> For those who aren't familiar with why this is a hard question:
>>
> This is not a turn restriction, as you are allowed to turn left from the
> road, but rather a lane change restriction. This must be handled in the map
> somehow as well, but there is no way to tag it at the moment to my
> knowledge. I suggest somebody start working on a lane relation, as much
> information lies in lanes, such as specified lanes for left and right turn,
> off-ramps, where you can change lane, where you cannot change lane,
> differented restrictions in different lanes (such as you cannot change
> between the left-most lanes where an onramp comes on right-hand side of a
> motorway, restrictions applying only for one movement, not the other (i.e.
> you can change lane to the left, but not to the right). I am more than
> willing to help you form such a relation, but doesn't have time to do the
> work myself.

I tend to create a way per lane if the lanes are separated by legal or
physical means that prohibit lane change.
so this intersection would encompass some oneway segments that will not
allow any router to send people coming from the north (22, 99?) to turn
left onto the 17th St SE.
-- 

Dirk-Lüder "Deelkar" Kreie
Bremen - 53.0952°N 8.8652°E

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