[Tagging] How to tag a narrow cul de sac without turning possibility

Paul Johnson baloo at ursamundi.org
Tue Mar 23 22:52:04 UTC 2021


On Tue, Mar 23, 2021 at 4:30 PM Volker Schmidt <voschix at gmail.com> wrote:

> The noexit=yes is not suitable as it is only intended for mappers. In
> addition it only says this road leads to nowhere, but it does not say that
> there is no road widening for turning.
>

I'm not convinced.  The usual icon for this even is the dead end sign, as
opposed to a cul-de-sac sign.


> The bicycle or motorcycle turning issue I left out for simplicity. Also if
> you have a Smart-sized car you may be able to turn around.
>
> Looking at it from the functional point of view, i.e. how can a
> bicycle/car/hgv router decide if I need to leave the road in reverse.
>

Basic graph theory.  There's only one exit.
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