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|  Frequently Asked Questions Slowing Down Traffic: Traffic Calming Information |  |
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| Q: Where can I learn more about DOT’s overall approach to traffic calming and street design?
A: The Street Design Manual is a comprehensive resource for in-depth information on DOT's traffic calming toolkit. Another helpful resource is the School Safety Engineering Project General Mitigation Measures Final Report.
Q: What is the difference between a speed hump and a speed bump?
A speed hump is a paved raised area of a roadway, approximately 3 to 4 inches high at its center, which deflects both the wheels and frame of a traversing vehicle. The purpose of a speed hump is to reduce vehicle speeds. Speed humps should not be confused with the speed 'bump' that is often found in shopping mall parking lots.
Q: How can I get a speed hump installed on my block?
A: Any individual or group can request a speed hump by writing to the Commissioner of Transportation, 55 Water Street, New York, NY 10041. However, it is helpful to include written indications of community support, such as a petition of support signed by a majority of the homeowners, residents, businesses, or other organizations on the block, a resolution of support from the local community board, or a letter of support from a local elected official.
In general, speed humps should be confined to local and residential streets. They should not be installed on a regularly scheduled local bus route, a designated local or through truck route or snow emergency route. DOT has recently changed its evaluation criteria for speed reducers, to lower the speed threshold a street has to meet to be considered for speed reducers. In cases where a speed hump has been requested adjacent to a school and it is not possible due to roadway conditions, the Agency may consider installing a Reduced Speed Zone. Reduced Speed Zones include 20mph reduced speed limit signs accompanied by flashing beacons that operate during school hours. Q: How can I have a mid-block crosswalk installed on my street?
A: You may request a mid-block crosswalk by writing to the Commissioner of Transportation, 55 Water Street, New York, NY 10041. The decision on whether or not to install a mid-block crosswalk will depend on whether the location meets certain criteria, such as a sufficient volume of crossing pedestrians, and appropriate space for a traffic signal or stop sign installation.
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