About Speed Humps

Policy Specifications
(pdf / 46kb / 1 page)

Their characteristics

  1. 3" tall by 12’ long in the direction of travel
  2. Extend the entire width of the street
  3. 12" painted reflective white stripes across
  4. Spaced 250’-350’ apart
  5. Designed to be driven comfortably at 15 mph

Advantages

  1. Decrease average speed 5-10 mph
  2. Sometimes can decrease the number of cars using the road
  3. Works 24 hours a day, 365 days a year
  4. Cost is reasonable

Disadvantages

  1. All drivers must drive over them; speeders and  non-speeders
  2. Traffic noise from:  rapid braking, rapid accelerating, objects bouncing in truck beds
  3. Drivers might drive "around" them, onto shoulders, sidewalks, or landscaped areas
  4. Street sweepers may leave some dirt and debris residue at humps
  5. Some rainwater may be retained
  6. They are not aesthetic, some people object to their appearance