On 3/13/2012 7:45 AM, Jonathan Bennett wrote:
On 13/03/2012 11:29, Nathan Edgars II wrote:
http://wiki.openstreetmap.org/wiki/Talk:Tag:highway%3Dturning_circle#Central_island
The question is whether a normal-sized turning circle can be tagged as
such if there's a small landscaped island in the middle. Here's a local
example:
http://maps.google.com/maps?hl=en&ll=28.450005,-81.506599&spn=0.008433,0.016512&gl=us&t=m&z=17&layer=c&cbll=28.450005,-81.506599&panoid=XSUkL2QthSC5VFHjx0U2Rg&cbp=12,1.34,,0,8.36
That is a perfect example of something that isn't a turning circle. The
tree in a bed prevents you using the full width of the circle to turn
in. Were you to map that as highway=turning_circle width=10m (say), a
7.5m truck, which would be able to turn in a 10m unobstructed turning
circle (eventually), would get stuck trying to make it around that loop.
The same is true for overhanging branches and such. You can't rely on
tags to know if an oversize vehicle can turn around.
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