[Talk-GB] Tagging modal filters and school streets

[Stephen Colebourne]

I don't think it can be a barrier value because we need to record what kind
of barrier it is, such as gate, swing gate or bollard (or planter which is
undocumented but in use)

Two of the modal_filter are mine, and some people are objecting in
comments. I do think modal_filter=yes is too narrow, as I'd really like to
cover school streets.

I don't think it can be traffic_restriction because a road could be "no
stopping" and a school Street for example.

Stephen



On Mon, 21 Sep 2020, 19:16 Dan S, <danstowell+osm at gmail.com> wrote:

> Hi
>
> That could be a good idea.
>
> How about barrier=modal_filter? Using barrier=* we might expect it to
> be on the barrier itself (e.g. a row of bollards/planters), perhaps
> less appropriate if a whole street area with camera-based enforcement.
> But, after all, they're all intended as a barrier to some forms of
> traffic.
>
> In what sense is traffic_restriction "taken"? I see there are plenty
> of "traffic_restriction=no_stopping" tagged. Could this sit alongside?
>
> BTW, according to taginfo, in the UK there are 4 "modal_filter=yes"
> and various notes/descriptions mentioning "modal" that could be a good
> way to find examples:
> https://taginfo.openstreetmap.org.uk/search?q=modal#keys
>
>
> Best
> Dan
>
> Op ma 21 sep. 2020 om 18:21 schreef Stephen Colebourne <
> scolebourne at joda.org>:
> >
> > Given we have hundreds of existing and new modal filters* and school
> > streets**, I think we could do with having a *high level* tag for them
> > that captures the concept.
> >
> > Currently, these are hard to find as they can be represented in many
> > ways. eg. for modal filters:
> > - highway=cycleway
> > - highwat=footway
> > - highway=service/residential with motor_vehicle=no
> > - plus potential associated barrier=xxx
> >
> > School streets are no more than a motor_vehicle:conditional=no @ (xxx)
> > which again loses the semantic meaning.
> >
> > What I'd like is a new tag that captures the high level concept. It
> > would be a bit like traffic_calming, but I don't think that adding
> > more values to that is appropriate. Any new value would go on the way
> > that is no longer open. These are generally verifiable on the ground,
> > even for filters that were added in the 1970s.
> >
> > Unfortunately, I don't have a great name. "traffic_restrictions" is
> > taken as is "traffic_control". My best suggestion is
> > "traffic_intervention=modal_filter"/"school_street", as they are
> > essentially interventions by local government to better manage the
> > street space.
> >
> > Any thoughts?
> > Stephen
> >
> > * a "modal filter" is a place where the road is closed, or made one
> > way for the purposes of controlling traffic, such as to stop rat
> > running. It is commonly linked to Low Traffic Neighbourhoods (LTNs)
> > but they have been around for 50 years, and are generally easy to
> > spot.
> >
> > ** a "school street" is a street that is only accessible by residents
> > at school drop-off and pick-up time
> >
> > _______________________________________________
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> > Talk-GB at openstreetmap.org
> > https://lists.openstreetmap.org/listinfo/talk-gb
>
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