[Talk-GB] Turn Restrictions at roundabouts

[Brian Prangle]

Where I've seen them they're on every exit

On Sat, 3 Oct 2020, 15:49 Dave F via Talk-GB, <talk-gb at openstreetmap.org>
wrote:

> 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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