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TO: HONORABLE MAYOR AND MEMBERS OF CITY COUNCIL
FROM: DIRECTOR OF PUBLIC WORKS
DATE: SEPTEMBER 21, 2004
SUBJECT: TRUDIE DRIVE AND HIGHMORE – TRAFFIC SAFETY, MULTIWAY STOP CONTROLS
As part of the South Eastview Neighborhood Traffic Calming Study, Staff reviewed numerous locations with respect to traffic conditions. In addition to evaluating the area for potential traffic calming tools, Staff evaluated locations to determine if additional traffic controls were appropriate based on general traffic engineering guidelines and practice.
Trudie Drive is a 36-foot wide, two lane roadway with skip yellow centerline. It has single-family residential frontage and qualifies for the 25 mph residential prima facie speed limit. Highmore Avenue north of Trudie Drive is 30-feet wide and 26-feet wide south of Trudie Drive. It has residential fronting development and is stop controlled at the subject intersection. The north leg connects to Jaybrook Drive while the south leg forms a cul-de-sac with driveway access to 13 homes.
Previous measurements of traffic on Trudie Drive revealed a 24-hour vehicular volume of 3,100 vpd and a prevailing (85th percentile) speed of 34 mph. A review of the accident history at this location revealed no reported intersection-type accidents during the three-year period ending February 2004.
Peak hour observations revealed that traffic volumes would fall below Federal and State guidelines for the installation of multi-way stop controls. For a prevailing speed of 34 mph, the minimum stopping sight distance per AASHTO (American Association of State Highway and Transportation Officials) standards is approximately 225 feet. Measurements revealed that on the south approach of Highmore Avenue looking westerly, there is 180 feet of visibility. The remaining intersection views have adequate visibility for prevailing conditions. As shown in the attached City of Rancho Palos Verdes all-way stop control warrants, the limited visibility justifies consideration of multi-way stop control installation.
The subject intersection is approximately 250 feet west of Western Avenue, which is traffic signal controlled. This length provides storage for approximately 14 vehicles between a potential stop limit line on Trudie Drive at the subject intersection and Western Avenue. As shown on the attached volume count taken on Trudie Drive east of Bayend Drive in October, 2003, the peak westbound period occurs between 4:00 pm and 4:15 pm. 40 vehicles were counted during this period, which calculates to approximately 3 vehicles per minute. Based on the allowable storage, it does not appear that installation of stop controls on Trudie Drive would create unacceptable congestion on Trudie between the subject intersection and Western Avenue.
Based on this information, installation of multi-way stop controls at this location is appropriate. To provide adequate advance notification of the stop signs on Trudie Drive, Stop Ahead warning signs and pavement markings should also be installed.
These recommendations are not intended as traffic calming devices. Trudie Drive will remain a potential candidate for traffic calming as revisions to the City’s Neighborhood Traffic Calming Plan are developed.
Adopting Staff’s recommendations will establish four way stop controls at the intersections of Trudie Drive and Highmore Avenue, resulting in improved visibility and traffic safety.
The recommended action results in no negative fiscal impact. All costs related to the installation of four-way stop controls will be paid for from the Traffic Maintenance fund.
Respectfully Submitted, Reviewed,
Dean E. Allison Les Evans
Director of Public Works City Manager
Attachments: Vicinity Map
Resolution No 2004-
RESOLUTION NO. 2004-__
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF
RANCHO PALOS VERDES ESTABLISHING FOUR-WAY STOP REGULATIONS AT THE INTERSECTIONS OF TRUDIE DRIVE AND HIGHMORE AVENUE
WHEREAS, Section 21351 of the California Vehicle Code authorizes the City to place and maintain or cause to be placed and maintained, such appropriate signs, signals or other traffic control devices as may be necessary properly to indicate and carry out the provisions of the Vehicle Code or local traffic ordinances or to warn or guide traffic; and
WHEREAS, Section 21458 of the California Vehicle Code authorizes local authorities to enact local parking regulations and indicate them by the use of paint upon curbs;
NOW, THEREFORE, IN ACCORDANCE WITH SECTION 10.04.010 OF THE CITY OF RANCHO PALOS VERDES MUNICIPAL CODE, THE CITY COUNCIL DOES HEARBY RESOLVE AND ORDER AS FOLLOWS:
Section 1. One all way stop intersection is hereby established at the intersection of Trudie Drive and Highmore Avenue.
Section 2. The City Clerk is hereby ordered to file certified copies of this Resolution with the Los Angeles County Sheriff’s office, and the Traffic Courts in Torrance.
Section 3. The regulations established in Section 1 of this Resolution shall become effective upon posting of the appropriate signs and markings.
Section 4. The City Council of the City of Rancho Palos Verdes does hereby establish and declare the location mentioned in the above Section 1, as Stop intersections, and hereby authorized and direct the City Manager to cause signs to be erected indicated where stopping is required.
PASSED, APPROVED, AND ADOPTED THE 21st DAY OF SEPTEMBER, 2004.
State of California )
County of Los Angeles )ss
City of Rancho Palos Verdes )
I, JO PURCELL, City Clerk of The City of Rancho Palos Verdes, hereby certify that the above Resolution No. 2004- was duly and regularly passed and adopted by the said City Council at regular meeting thereof held on September 21, 2004.
CITY OF RANCHO PALOS VERDES