[Tagging] Divided highways, and not so divided highways, one way or two

Vɑdɪm vadp.devl at gmail.com
Thu Oct 10 14:48:03 UTC 2019

Florian Lohoff-2 wrote
> On Thu, Oct 10, 2019 at 08:38:28AM +0200, Frederik Ramm wrote:
> Mapping large, multi-lane roads with a "do not cross line" in the
> middle as single line requires 4-5 times the number of turn
> restrictions. These are number i am estimating from my own experience
> mapping it one or the other way.
> At every way junction one has to model every disallowed way/turn.
> From my experience this is very error prone.


Also there are some arrangements which probably do not have a simple
solution even with centre=* tag suggested here.

For example a street with a tramway track in the middle separated from the
rest of the roadbed by dividing lines at each side which vehicles cannot
cross: https://goo.gl/maps/VHKbwjMoCVwawHxU9. By the way tramway tracks are
drawn with two separate ways, so a single way line in the middle would make
you think that the tramway tracks are not in the middle of the roadbed but
at its sides.

Another example is a bus lane in the middle of the road: 2 lanes of forward
traffic, a forward bus lane, a backward bus lane, backward traffic

Yes another one is a bus lane on the right side, but it turns on the left
through 4 lanes of normal forward traffic which not allowed to turn left

Sent from: http://gis.19327.n8.nabble.com/Tagging-f5258744.html

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