[Talk-GB] Turn Restrictions at roundabouts

[Dave F]

There is a lot of garbage in OSM due to those creating routers being too 
lazy to write a few lines of code, or even use common sense.

However, in this case I believe it's other contributors who think, for 
reasons that escape me, routers require it.

Routing software must be of a poor standard if it returns the commuter 
to the roundabout after just 10 metres or so after leaving it.

  I partially agree with Phil's suggestion that they're harmless, if 
turn restrictions are by themselves. However if there are  multiple at 
one junction it can become error prone. Any that aren't required are 
best removed.

DaveF


On 03/10/2020 14:05, Brian Prangle wrote:
> Hi
>
> There seems to be a predilection for adding turn restrictions , either 
> no right rurns or no U turns at the exit flares of roundabouts to 
> prevent turning back into the entry flares where there are no explicit 
> signed restrictions. I suspect this is "rendering for routers". Do 
> routers actually need this data?  I'm tempted just to delete them all 
> wherever I meet them, but I suspect there are thousands of them and 
> there'll be howls of complaint.
>
> Regards
>
> Brian
>
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