[Tagging] Street exits

Peter Elderson pelderson at gmail.com
Fri Jun 15 07:10:49 UTC 2018

Speed limit is only implied for the part crossing the sidewalk. The street
behind it can have different speed limits, usually it is part of a "30 Kmph
zone", but that is not implied or necessary.

The level of detail: sidewalks and kerbs are not usually mapped. It's not
realistic to start doing that just for these "exit constructions". In fact,
the exit may have dropped kerbs, but it might be a fat line or double line,
a line of different paving, a traffic bump or just that the sidewalk paving
Similar considerations for separate tagging of other details of paving,
elevation, lining. These are not fixed. The key element is that you cross a
sidewalk (and/or cycling lane).

Speed signs, give-way signs, shark teeth, stop-lines, bump warnings may or
may not be present. The idea is that all or most signs can be removed: a.
You are coming form an exit so slow down and give way! b. It's coming from
the right but it's an exit so move on!

We're looking for a simple way to indicate what's there without tagging all
the details and implications separately.

2018-06-15 8:42 GMT+02:00 <osm.tagging at thorsten.engler.id.au>:

> *From:* Peter Elderson <pelderson at gmail.com>
> *Sent:* Friday, 15 June 2018 16:29
> *To:* Tag discussion, strategy and related tools <
> tagging at openstreetmap.org>
> *Subject:* Re: [Tagging] Street exits
> The street is residential, but the exit is over a sidewalk, with a dropped
> curb. That's the piece I'm talking about: not the street, just the exit.
> Rules (legally) implied are that traffic can pass over this sidewalk, but
> has to give way to all sides and all others including pedestrians. Speed is
> limited to 15 Kmph (living_street rules).
> Only for that part where it crosses the sidewalk, or for the whole street
> behind it?
> As I’m normally mapping the kerb lines (way along the position of the
> kerb, with barrier=kerb and kerb=raised/lowered/rolled/flush) I would in
> this place have the highway crossing that kerb line, and would create an
> intersecting node (again tagged as barrier=kerb, kerb=lowered) (the same as
> when I’m mapping individual driveways, see: https://www.openstreetmap.org/
> edit#map=21/-27.21152/153.02620 ). But not everyone wants to map to this
> level of detail.
> Maybe just a single barrier=kerb, kerb=lowered node on the highway to
> indicate that it has to cross the kerb?
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Vr gr Peter Elderson
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