Chapter 11.34 — ROADWAY DESIGN FEATURES

A bump is a vertical rise in the surface of the pavement of three to three and one-quarter inches at its midpoint. The profile is generally parabolic and twelve feet in length. There is no vertical displacement start to finish of the road bump. The shape is consistent for the full width of the pavement except for the last one foot at each end. The ends will be tapered so that they are flush with the roadway at the edge of pavement or at the tip of a gutter.

(Ord. 1837, 1999; Ord. 1430, (part), 1987)

There are conferred upon the City Manager those powers and duties necessary for the administration of this chapter. In addition, there is also conferred upon the City Manager the authority and power to designate such officers and employees of the City, and of other cooperating public agencies, such as the Sheriff’s Department and Fire Department, as may be required to assist him in carrying out the intent and purpose of this chapter.

(Ord. 1838, 1999; Ord. 1430, (part), 1987)

Road bumps may be installed and maintained on streets where all of the following criteria have been and continue to be satisfied.

A. The (local or collector) street is a neighborhood residential street as defined by the California Vehicle Code or by City Council actions. B. The street is no wider than forty feet from curb to curb or from edge of pavement to edge of pavement. C. The street contains no more than one lane in each direction. D. A speed limit of twenty-five miles per hour has been established in conformance with State law. E. The street is not a truck route or a transit bus route. F. The street has an average annual daily traffic volume of less than four thousand vehicles. G. The street has a maximum grade of five percent or less for any segment between intersections.

H. The minimum distance from an intersection or curve to the road bump shall be one hundred fifty feet. I. The spacing between road bumps shall be a minimum of four hundred feet and a maximum of five hundred fifty feet. J. The road bump is visible for a distance of one hundred fifty feet. K. The result of a traffic and engineering survey must indicate a minimum eighty-five percent approach speed of thirty-two miles per hour.

(Ord. 1847, 2000; Ord. 1839, 1999; Ord. 1430, (part), 1987)

Notwithstanding the criteria provided in Section 11.34.030 of this chapter, the Director of Public Works is authorized to make adjustments in the installation criteria for roadway design features, if, in his professional opinion, such adjustments are necessary for the installation to fit the specific conditions on the residential street where it is installed.

(Ord. 1896, § 1, 2002)