[OSM-talk] Roundabouts and routing

[4x4falcon]

On 09/09/11 15:45, David Earl wrote:
>
>
> On Friday, 9 September 2011, Nathan Edgars II <neroute2 at gmail.com
> <mailto:neroute2 at gmail.com>> wrote:
>  > On 9/8/2011 3:45 PM, David Earl wrote:
>  >>
>  >> The problem is exacerbated because many of these were done as a single
>  >> one way which comes off the roundabout and then turns almost 180 deg.
>  >> and rejoins roundabout.
>  >>
>  >> Example:
>  >> http://www.openstreetmap.org/browse/way/4565106
> <http://www.openstreetmap.org/browse/way/4565106>
>  >
>  > This is certainly no good, since it implies that making that U-turn
> is staying on the same road.
>
>
> i didnt start the idiom of this apparent U turn, merely the tagging to
> indicate what it is to programs. But the idiom is very widespread
> AFAICS. But Im not sure that breaking it in two says anything different.
>
> David

This mapping is incorrect they are two separate ways and should be 
mapped as such.

Cheers
Ross