Part Two

Task 4: Acknowledgment

Upon determination that the application and verification documents meet the criteria for speed hump consideration, the Public Works Department will notify the applicant of the application status. The acknowledgment will be sent to the contact person making the inquiry. The acknowledgment will confirm that a study will be underway and will indicate an anticipated completion date.

Task 5: Collect Data / Verify Problem

Engineering Division staff will commence with both data collection and review of existing operational and geometric characteristics of the street in question. Eligibility for a traffic calming installation will be verified by checking collected data to the warrants and a review of the operational and geometric characteristics of the street segment.

Data to determine warrants for the installation of the speed hump will be collected by Engineering Division staff. A street will warrant traffic calming if it meets the following criteria:

  • The street shall not have more than one traffic lane in each direction.
  • The street shall have a regulatory speed limit of 25 mph or less.
  • The 85th percentile speed on the street section must be at least 7 mph over the regulatory speed limit.
  • The street has more than 500 vehicles in a 24 hour period.
  • The average daily traffic must be less than 5,000 vehicles per day

Secondary warranting criteria:

  • The street has pedestrian generators like schools or parks.
  • The area must score a minimum of 40 points on a priority points scale (included herein).

Task 6: Develop Plan of Traffic Calming Measure

If the street segment meets criteria and warrants for traffic calming, a sketch plan of the proposed traffic calming measure to be utilized will be prepared by Engineering Division staff.

If the requested street does not meet criteria and warrants, the requester will be notified through the U. S. Postal Service. No further study action will be taken.

Task 7: Ranking Traffic Calming Sites

After meeting operational, geometric and general warrant criteria, traffic calming projects will be prioritized on a citywide basis. This action ensures proper allocation of city resources and it ensures an equitable process to citizens.

Projects will be ranked for funding and installation according to assigned points on the basis of:

  • 85th percentile speed
  • 24-hour traffic volume
  • Total number of reported crashes over a two-year period
  • Proximity to special traffic generators

The street segment installation accumulating the greatest number of points will be considered to have the highest priority. Among project installations with the same rank, higher priority will be given to the application with the earliest application date subsequent to the effective date of the traffic calming program.