Under certain circumstances, traffic circles may cause a diversion of traffic. The number of fixed-object accidents may increase when a traffic circle is installed on a collector or arterial street. Traffic circles are no longer tested or constructed on collector or arterial streets. All traffic circles now tested or constructed must conform to the geometrics noted above. Speed Humps Stop signs and traffic circles modify driver behavior at intersections.
Speed humps modify driver behavior between intersections.
Prior to installing speed humps, Public Works staff verifies vehicle speed conditions on the street segment in question and determines the appropriateness of a speed hump application. If a favorable finding is made, staff prepares a petition that neighborhood volunteers circulate to all affected residents and property owners. The petition asks the city to install a pair of speed humps and indicates a willingness to pay for the humps whether by assessment or out of neighborhood NRP funds. Since the humps cannot be tested for a short time as can traffic circles, the neighborhood must make provision for the humps removal in the event the petitioners are not satisfied with the humps or their results. Properly designed and installed, speed humps will not interfere with normal curbside drainage.