[OSM-newbies] Overkill or Not?

[Richard Weait]

On Sun, Oct 4, 2009 at 10:56 PM, James Ewen <ve6srv at gmail.com> wrote:
> On Sun, Oct 4, 2009 at 4:55 PM, Richard Weait <richard at weait.com> wrote:
>> In either case using turn restrictions makes the abstract junction
>> more accurate to routing programs.  You appear to be using
>> way-placement to imply turn restrictions.  I have done that before,
>> but only where physical barriers exist
>
> Which is the case here. There are concrete barriers in place that
> would make it very difficult to travel straight through the
> intersection. There is a small island forcing traffic to the left, and
> in the middle of the intersection, another small barrier that would
> make it difficult to get out of the left hand turn, and continue
> straight. The Yahoo imagery is not of high enough detail to be able to
> make out the barriers, but you can see the rubber left on the road
> surface where the traffic is forced to travel.

I was fooled by the aerial images.  It sounds like you have it exactly
right, as I would expect; you've done this before; this is not your
first rodeo; you are the local expert.  I mean you must be right; you
made the same choices that I did.  ;-)