Greensboro, NC
Home MenuTypes of Traffic Calming
Chicanes are a type of traffic calming feature designed to slow down vehicles by creating a series of alternating curves in the roadway. Instead of driving straight, motorists must steer left and right through the narrowed path, which naturally encourages lower speeds.
(https://nacto.org)
Curb extensions, also called bulb-outs) are areas where the sidewalk is extended into the street, usually at an intersection or mid-block crossing. They “bump out” the curb into the roadway.
Roadway narrowings, also known as “chokers” or “neckdowns”, are design alterations made to the width of a street to slow down vehicular traffic. This measure creates a visual cue to motorists that they are entering a slower speed area.
(https://nacto.org)
Speed cushions are wide, flat speed bumps with spaces in between, designed to slow down vehicles while allowing larger vehicles like fire trucks and buses to pass unimpeded. They are ideal for roads that need to maintain access for emergency vehicles, as the wheelbase of such vehicles allows them to straddle the cushions without slowing down.
(https://nacto.org)
Speed humps are elongated and rounded, spanning the entire width of the roadway. The design, which is lower and wider than speed bumps, enables vehicles to pass over at a reduced speed without any significant discomfort.
(https://nacto.org)
Speed tables or raised crosswalks are flat-topped speed humps usually installed at pedestrian crossings. They naturally slow down vehicles as they approach and they elevate pedestrians, making them more visible to approaching drivers.
(https://nacto.org)
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