This paper examines the policies and programs for speed humps in metropolitan Atlanta, Georgia. The City of Atlanta adopted a speed hump policy in 1994. Since then, more than 436 locations have been reviewed with implementation occurring on 25 neighborhood streets. The policy requires a 24-hour volume of 400-3,000 vehicles per day (vpd) for speed hump installation. Cobb County adopted a speed hump policy in June 1996. The speed hump policy requires a preliminary and postdata collection effort to register an 85th percentile speed of at least 35 mph (56 kph) and average daily traffic of 300-3,000 vpd for a 24-hour period. Highlights of the program include utilization of two speed hump designs, privatization, neighborhood petitioning and public meetings, contractor installation, and management of two radar-speed trailer units. As of December 31, 1998, there were speed humps in five residential streets. A three-person traffic calming group was established in DeKalb County in 1997 to handle the 400 requests for speed humps received from county residents. The policy requires traffic data collection, and the 85th percentile speed must be at least 35 mph (56 kph). Gwinnett County has had a speed hump program in operation since 1994. Traffic data collection is made, and for a 24-hour period, an 85th percentile speed of 35 mph (56 kph) must be recorded. No minimum or maximum traffic volume is established in the policy. Public meetings with neighborhood residents are conducted by county staff if traffic speed requirements are met. There have been speed humps installed in 92 neighborhood streets.


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Media Info

  • Pagination: 20p

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Filing Info

  • Accession Number: 00770229
  • Record Type: Publication
  • Report/Paper Numbers: Publication No. CD-006
  • Files: TRIS
  • Created Date: Oct 16 1999 12:00AM