[OSM-talk] Roundabouts and routing

[Charlie Ferrero]

On 08/09/2011 23:14, Jonathan Waller wrote:
> With regards to solution 1) I have never noticed a sliproad onto a 
> roundabout tagged as junction=roundabout (UK East Midlands).  Where is 
> this common practice?  If this is not too widely used then it might be 
> worth retagging, but I don't know how easy it would be to 
> automatically detect these.
>
> Jonathan
>
>
Should you be a mkgmap user then running it with the 
--check-roundabout-flares option will result in identification of 
problems with, yes you guessed it, roundabout flare roads.  
Specifically, it will warn about:
- Flare roads that have oneway set in the wrong direction
- Flare roads that are not set to oneway
- Flare roads that do not converge to a flare point

In addition, the --check-roundabouts flag will result in warning about 
flare roads that have been given the junction=roundabout tag.

--
Charlie