[Tagging] maxspeed:type vs source:maxspeed // StreetComplete

Paul Johnson baloo at ursamundi.org
Wed Sep 26 12:08:44 UTC 2018


On Tue, Sep 25, 2018 at 11:34 PM Mark Wagner <mark+osm at carnildo.com> wrote:

> On Tue, 25 Sep 2018 08:09:12 +0200
> Florian Lohoff <f at zz.de> wrote:
>
> > On Wed, Sep 19, 2018 at 11:24:00AM -0700, Mark Wagner wrote:
> > > My point is that no such guarantee exists for roads without speed
> > > limit signs.  Yes, the numeric limit for something like Glenwood
> > > Road might be 50 mph, but the road was designed around farm trucks
> > > going no more than 20 mph, and has the tight curves, short sight
> > > lines, and poor surface quality you'd expect for that speed.
> >
> > Sign posted speeds dont are not telling you "this is the speed which
> > is safe for 100% of the vehicles" but this is the maximum allowed.
> > You are still required to drive safely.
>
> That's not what I said.  To repeat, my point is that, at least locally,
> a signposted speed limit *is* a guarantee that, for an ordinary vehicle
> traveling under ordinary conditions, the speed is reasonable.  An
> unsigned speed limit, on the other hand, does *not* carry that
> guarantee.
>

If you're in the US, you're describing the advisory speeds (the orange
signs), which are roughly tuned to a midsize family car.
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