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45 <br /> <br />Speed lumps <br />Vertical deflection treatments like speed lumps are some of the most effective treatments <br />for slowing motor vehicle speeds. These treatments can reduce higher-speed motor <br />vehicle cut-through traffic on local streets. <br /> <br />Guidance <br />• Use on local and shared streets at midblock locations where lower motor vehicle <br />speeds and volumes are desired, such as on bike boulevards. <br />• Locate speed lumps every 250 to 500 feet to accomplish speed control. Do not <br />locate in front of driveways, close to intersections, or on a sharp curve. <br />• Refer to the City of Pleasanton’s Standard Specifications & Details for Speed Lumps <br />and Advance Warning Markings (July 2024). <br />Considerations <br />• To minimize impacts to emergency response, consider offset speed tables, which <br />are split down the street centerline with longitudinal separation between the halves. <br />• Speed lumps may be constructed out of asphalt or rubber. The City of Pleasanton <br />requires the use of asphalt to minimize maintenance and installation costs that <br />increase with the rubber mats. <br />• Design should consider the ability to withstand the weight of fire apparatus and <br />outriggers.