[Talk-GB] Turn Restrictions at roundabouts

[Philip Barnes]

On Sat, 2020-10-03 at 14:05 +0100, 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. 
> 
They do seem to be unnecessary and are not legal unless signed.

Whilst you may find them playing with routers on a pc, no real world
satnav will ever detect that you have taken a wrong  turning and
reroute within a timeframe that these would ever be an issue.

I would probably remove them after survey and it could be worth
commenting when mapper adds these asking for reasoning. 

The danger of removing them without survey is that we could remove a
rare real restriction. They are unecessary but harmless IMHO.

Phil (trigpoint)
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