Describes features used to slow down traffic.
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.
|yes||General or unspecified traffic calming device.|
|bump||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 Speed bump.|
|chicane||An artificial feature creating extra turns in a road, used in motor racing and on streets to slow traffic for safety.|
|choker||Narrowed road, sometimes signed as pinch points.|
|cushion||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 Speed cushion.|
|hump||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 Speed hump.|
|island||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||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 Rumble strips.|
|table||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 Speed table.|
This table is a wiki template with a default description in English. Editable here.