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barrier=lift_gate and access tag

2

Hi, Since a barrier is supposed to restrict the traffic in some way, access tag is slightly confusing here. If a way is tagged with motorcycle=yes, motorcycles are free to ride here. What means barrier=lift_gate tagged motorcycle=yes? A motorcycle will pass through the barrier, but when? When the lift gate is lowered or lifted? What about motorcycle=no? Motorcyclists will never pass, regardless of the position of the lift gate? Sorry but for me this is confusing. And JOSM is asking additional tags always when I add a lift gate.

asked 09 May '17, 15:29

Plamen's gravatar image

Plamen
1516713
accept rate: 0%


One Answer:

2

In general barriers imply access=no, they are there to shut someone out after all. For some barriers there are differing implicit access restrictions defined on their respective wiki pages. For barrier=lift_gate that is not the case, though (https://wiki.openstreetmap.org/wiki/Tag:barrier%3Dlift_gate).

So even if a road has a certain access restriction (yes or no) this does not mean that the barrier necessarily has to have the same restriction. Think of some bollards that split a road into two sections for example, although motor_vehicles might be allowed on both sections the passing of the bollard might only be allowed for pedestrians and bicycles.

But there are other values besides yes or no. The lift gate might be passable for customers (access=customers) or by permission of the owner (access=private) for example. See https://wiki.openstreetmap.org/wiki/Key:access#Access_tag_values for the possibilities. Substitute access by motorcycle if appropriate but don't forget other modes of transport that might be generally allowed (eg. foot=yes).

answered 09 May '17, 16:09

TZorn's gravatar image

TZorn
12.3k764225
accept rate: 15%

The lift gate is mostly a moving boom and is not like the old railway boom covering the entire witdh of the way / street but only 2/3. There is a 1/3 gap, wide enough to allow pedestrians, bicycles or motorcycles to pass. So tag it accordingly the situation and traffic signs.

(09 May '17, 20:24) Hendrikklaas
3

Lift gates vary in width - it's pretty common to see ones that go all the away across the access that they control.

(09 May '17, 20:45) SomeoneElse ♦