Tool Box
Neighborhood Traffic Management Program

SPLIT SPEED HUMP

Split speed humps are a variation of the speed hump. Each approach of the speed hump is separated by approximately 50 feet. The approach island at each lump discourages drivers from maneuvering around the lumps while the distance between the two lumps is adequate for emergency response vehicles to cross the centerline and bypass the speed hump. A split speed hump can be used in place of a speed lump or speed cushion

The magnitude of reduction in speed is dependant of the spacing of speed humps between points that require drivers to slow. On average, split speed humps achieve 14% reduction in speeds.

Advantages

• Effective at reducing speeds
• Less of an impedance on emergency response vehicles compared to speed lump

Disadvantages

• May require the removal of on-street parking within the limits of the device.
• Increased noise
• Aesthetics
• Signs may be unwelcome by adjacent residents

For additional information please contact:

Tracy Whitley
Project Engineer
Sacramento County Department of Transportation
whitleyt@SacCounty.net