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How should speed limits be tagged if they are different in the two directions of a street? E.g. reduced speed limit before a crossing road:

    <<       (70)       << |    (50)   <<  (70)  <<     [Speed limit right2left]
    ———————————————————————+———————————————————————     [Street]
    >>  (70)  >>   (50)    | >>       (70)       >>     [Speed limit left2right]
    ~~~ 70 ~~~><~~~~~~~~~ ??? ~~~~~~~~~><~~~ 70 ~~~     [Speed limit tags]
So how to tag this -------^ part of the street?

asked 03 Jun '12, 01:29

K-M-H's gravatar image

K-M-H
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accept rate: 0%

edited 03 Jun '12, 01:35


See http://wiki.openstreetmap.org/wiki/Key:maxspeed#Driving_direction Note you will have to split the street multiple times for this to work.

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answered 03 Jun '12, 13:18

SimonPoole's gravatar image

SimonPoole ♦
44.7k13326701
accept rate: 18%

I'd say maxspeed:forward and maxspeed:backward are the tags you want. "forward" when the car drives in the same direction as the OSM way.

The "*:forward" subtag style is common enough in OSM, and taginfo will show you that it is commonly used for maxspeed too.

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answered 03 Jun '12, 13:23

Vincent%20de%20Phily's gravatar image

Vincent de P... ♦
17.3k18152249
accept rate: 19%

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question asked: 03 Jun '12, 01:29

question was seen: 5,204 times

last updated: 03 Jun '12, 13:23

NOTICE: help.openstreetmap.org is no longer in use from 1st March 2024. Please use the OpenStreetMap Community Forum