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Public-images-osm logo.svg traffic_calming
Traffic calming example.jpg
Describes features used to slow down traffic.
Group: Highway
Used on these elements
may be used on nodes
may be used on ways
should not be used on areas
use on relations unspecified
Useful combination
Status: unspecified

Traffic calming consists of engineering and other measures put in place on roads for slowing down or reducing motor-vehicle traffic as well as to improve safety for pedestrians and cyclists.

How to map

This tag must used in conjunction with highway=*.

  • If the feature is very short in length (or if you don't remember its length), put a node on an existing highway and add a tag traffic_calming=* to that node.
  • If the feature has a known length, split the highway on the length of the feature and add a tag traffic_calming=* to the way.


Value Element Comment Photo
yes Node Way General or unspecified traffic calming device.
bump Node A speed bump, speed hump or ramp is a traffic calming feature used to slow traffic. They are also known as a sleeping policeman in British English and Caribbean English and a judder bar in New Zealand English. A speed bump is a bump in the roadway with heights typically ranging between 7.5 and 10 cm. Its length is typically less than or near to 30 cm. They may have cuts and small gaps left and right for cyclists. See Wikipedia Speed bump.
Traffic calming example.jpg
chicane Node Way An artificial feature creating extra turns in a road, used in motor racing and on streets to slow traffic for safety.
One-lane chicane 1.jpg
choker Node Way Narrowed road, sometimes signed as pinch points.
Ferry Road, Eastham, Wirral - DSC03451.JPG
cushion Node Way A hump with spaces between or several multiple rectangular humps aligned across the road. This allows emergency vehicles, buses (due to their wider axle) and bicycles to pass through without slowing down. See Wikipedia Speed cushion.
Rubber speed cushions.jpg
hump Node Way A speed hump (also called a road hump, undulation or speed ramp) is a rounded traffic calming device. Similar to a bump, but longer. Generally, speed humps are about 4 m in length and span the width of the road. The height of humps ranges from 7.5 to 10 cm. See Wikipedia Speed hump.
Asphalt Speed Hump.jpg
island Node Way An island is a small area that temporarily separates two different directions of traffic. See also crossing=island for islands intended for pedestrians crossing the road.
rumble_strip Node Way Multiple very low bumps (few cm at most) spaced few meters apart spanning the entire width of the road. Does not limit speeds as such, but are very noticeable to the driver as they generate noise and shake the car mildly. Not to be confused with the similar device used to alert drivers when they drift from their lane. See Wikipedia Rumble strips.
North Luzon Expressway Rumble Strips.jpg
table Node Way A speed table (or flat top hump) designed as a long speed hump with a flat section in the middle. The flat section is long enough for all wheels of a passenger car to fit on that section simultaneously. Does not slow as much as a hump and is usually used on roads with residential speed limit. See Wikipedia Speed table.
Kurb Extension Nuffield Street.jpg

This table is a wiki template with a default description in English. Editable here.

See also