[Tagging] Feature Proposal - crossing=marked

[Nick Bolten]

This subthread is doing a good job of showing why "uncontrolled" is opaque
to users and mappers, as it is primarily an issue of local legal questions
and not physical, on-the-ground features, despite the fact that
"uncontrolled" in OSM is meant to also describe those (like markings).
Because it's a matter of local legal matters, whether a crossing is
"controlled" varies from city to city, county to county, region to region,
country to country - yet mappers are asked to describe any crossing that
has markings but no "traffic signals" are "uncontrolled".

I would be surprised if the vast majority of people could certainly
describe whether a particular crossing, even one one a block away from
their residence, is "controlled". First, I'd expect wildy varying
definitions of what the word means, with most people saying, "I have no
idea". Second, if you asked them a question like, "who has the right of way
at a marked crossing? How about unmarked?", I expect similar disagreement
and lack of certainty.

The use within OSM even disagrees with the definitions available at what I
assume are the primary sources of this nomenclature, where the crossing
itself does not necessarily have any markings whatsoever, but simply lacks
all forms of controls.

On Thu, May 9, 2019 at 1:46 AM Steve Doerr <doerr.stephen at gmail.com> wrote:

> On 08/05/2019 22:48, Graeme Fitzpatrick wrote:
> > I thought that controlled means that their is signage / indication of
> > some form that says a driver has to stop to allow pedestrians to cross
>
> I would take it to be more than that: something that controls *when* the
> vehicles have priority and when the pedestrians do. A zebra crossing in
> the UK is uncontrolled, and a signal-controlled crossing is, er,
> controlled by signals. Maybe a lollipop lady would also be a controlled
> crossing (but only at certain times of day).
>
> --
> Steve
>
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