[Tagging] [Talk-us] stop signs

[Nathan Edgars II]

On Wed, Oct 27, 2010 at 9:26 AM, M∡rtin Koppenhoefer
<dieterdreist at gmail.com> wrote:
> really I don't see the point of this discussion anymore: I already
> question the benefit of tagged stop signs in general, as a stop sign
> itself requires very few seconds of travel time, while a unregulated
> crossing with a lot of traffic from the right might require a lot
> more, it all depends merely on traffic density (which itself is quite
> dependent on the time).

The most important thing is who has right-of-way; those streets that
do are usually easier to drive along and a router should prefer them.
A stop sign is more annoying than a yield (give way) sign, and many
jurisdictions badly overuse stop signs to discourage
connectivity/cut-through traffic. Routers of cars and bicycles should
prefer streets where you don't have to stop every block (this is
especially important for cycling because it's usually more pleasant to
ride along a smooth residential street than a six-lane highway, but an
overload of stop signs may negate any advantage).

I'm not sure that direction of the stop sign matters much. It's
extremely improbable that any given street will have a bunch of stop
signs in one direction but none in the other. So a router simply needs
to add a small penalty for each stop sign node passed through.