Rancho Palos Verdes City Council
   

AUGUST 3, 2004 RIDGEGATE DRIVE TRAFFIC SAFETY – MULTI-WAY STOP CONTROLS

TO: HONORABLE MAYOR AND MEMBERS OF CITY COUNCIL

FROM: DIRECTOR OF PUBLIC WORKS

DATE: AUGUST 3, 2004

SUBJECT: RIDGEGATE DRIVE TRAFFIC SAFETY – MULTI-WAY STOP CONTROLS

Staff Coordinator: Nicole Jules, Sr. Engineer

RECOMMENDATIONS

  1. Establish four-way stop controls, marked crosswalks and associated pavement markings at the intersection of Ridgegate Drive and Ridgehaven Court/Ridgepoint Court.
  2. Establish four-way stop controls, marked crosswalks and associated pavement markings at the intersection of Ridgegate Drive and Ridgecove Court.
  3. Adopt Resolution No 2004 - , A Resolution of the City Council of the City of Rancho Palos Verdes establishing four-way stop controls at the intersections of Ridgegate Drive and Ridgehaven Ct/Ridgepoint Court and Ridgegate Drive and Ridgecove Court.

BACKGROUND

The Ridgegate Drive Community has been pursuing traffic calming on Ridgegate Drive since 1996. The Ridgegate Community is comprised of two Home Owners Associations: the Ridgegate East H.O.A. and the Mira Verde H.O.A. (collectively referred to as "the Ridgegate Community" or "the Community").

Table 1 is a chronological list of meeting dates and subsequent actions. The Community’s concern of speeding vehicles and cut-through traffic is the basis for the request. The General Plan identifies Ridgegate Drive as a collector street, thus making it ineligible for the City’s Neighborhood Traffic Calming Program. However, in an effort to work constructively with the Community, Ridgegate Drive was evaluated for traffic calming measures through the Traffic Committee process. Additional speed limit signs and rumble strips were installed at various locations per the City’s Consulting Traffic Engineer.

TABLE 1 – Summary of Meetings

Date

Action

September 1996

Maintain 30 mph, extend red curb, trim shrubbery for improved sight distance

September 2000

Ridgegate considered for Traffic Calming measures

November 2001

Deny request for speed humps, Install edge line, use speed trailer and increase enforcement

March 23, 2002

Install 30 mph speed limit signs at both ends of Ridgegate

July 29, 2002

Install rumble strips per Consultant Traffic Engineer and stencil "30 mph slow down" on pavement where appropriate

February 24, 2003

Initiate process involving HOA to re-install RPM’s, conduct effectiveness study after re-installation, inappropriate to consider Ridgegate a residential street.

April 15, 2003

City Council – Requested Neighborhood Survey

February 3, 2004

City Council – Denied Request to Vacate Right-of-Way

At the February 24, 2003 Traffic Committee meeting, the Committee voted (3-1) that evaluating Ridgegate Drive as if it were a residential street is inappropriate. Dissatisfied with the Traffic Committee’s decision, the Community addressed the City Council for action. At the April 15, 2003 meeting of the City Council, Staff presented an update on the Ridgegate Drive traffic calming request and the Traffic Committee’s recommendation that Ridgegate Drive could not be evaluated as a residential street. At that meeting, Council directed Staff to survey the Ridgegate Community to inquire about speeding conditions, to determine if residents perceived a problem, and what action should be taken.

Staff met with the Ridgegate Community liaisons to construct the survey and appropriate attachments. 603 surveys were mailed on June 3, 2003, to every resident in the Ridgegate Community. Of the 603 surveys mailed out, 388 were returned.

Based on the responses, the majority of respondents favored privatizing Ridgegate Drive.

At the February 3, 2004 City Council meeting, the Ridgegate Community requested vacation of the City’s Right-of-way, thus making Ridgegate Drive a private street for private control. The City Council denied the request and directed Staff to work with the Ridgegate Community to develop strategies to calm traffic.

Immediately Staff began working with the Ridgegate Community to better understand the problems and devise appropriate solutions. On Februay 17, 2004, a Community workshop was held in the Community Room at City Hall, where Staff and 7 members of the Ridgegate Community worked collectively to identify Community traffic-related issues and potential solutions. Below is a summary of the identified issues:

    • Pedestrian crossing Ridgegate Drive to access other side of Community
    • Sight visibility (blind curves and street grade)
    • Difficulty of vehicles accessing Ridgegate Drive from access driveways.
    • Excessive speeding
    • Commercial vehicles on Ridgegate Drive
    • Existing bus stop creates conflict
    • Unsafe for pedestrians
    • Traffic density

At the conclusion of the workshop, it was agreed upon by all, that the overwhelming problem on Ridgegate Drive is access and safety. The Community described difficulties with accessing Ridgegate drive due to vehicles speeding. Additionally, they felt unsafe when crossing Ridgegate Drive to access Community amenities located on either side of the Ridgegate Drive due to speeding vehicles and high volumes of traffic. This was profound information for Staff. At previous meetings, the discussion revolved around traffic calming, not traffic safety and pedestrian access.

Traffic safety and pedestrian access makes a difference in potential solutions to speeding and high vehicle traffic.

Staff and the Ridgegate Community met again on May 5, 2004 to discuss potential solutions to the access and safety issues presented by the Community. It was proposed that installation of four-way stop controls at the intersections of Ridgegate Drive and Ridgehaven Ct/Ridgepoint Court and Ridgegate Drive and Ridgecove Court would improve visibility and provide access for pedestrians. The Ridgegate Community representatives were very pleased at this potential solution to traffic safety and supported the recommendation.

This item was presented to the Traffic Committee at it’s July 26, 2004 meeting and the Committee voted 6-0 in support of Staff’s recommendation to establish four-way stop controls at the intersections of Ridgegate Drive and Ridgehaven Ct/Ridgepoint Court and Ridgegate Drive and Ridgecove Court.

DISCUSSION

Ridgegate Drive is a 40-foot wide roadway striped for one travel lane and one parking lane in each direction. The posted speed limit is 30 mph. There are four intersections between Hawthorne Boulevard and Highridge Road:

    • Ridgehaven Ct/Ridgepoint Ct (4-leg intersection)
    • Ridgecove Ct (4-leg intersection)
    • Ridgebluff Ct (T-intersection)
    • Ridgebrook Ct (T-intersection)

Previous count data revealed 24-hour volumes on Ridgegate Drive ranged from 2,400 to 3,700 vehicles per day. The 85th percentile speed ranged from 39-42 mph. Multi-way stop control warrants were prepared in 2001 at Ridgecove Ct and at Ridgehaven Ct/Ridgepoint Ct, however additional stop controls were not warranted at that time.

A review of the accident history at these locations revealed no reported accidents during the three-year period ending January 2004.

Visibility was measured at the intersections of Ridgegate Dr with Ridgehaven Ct/Ridgepoint Ct and with Ridgecove Ct. For a prevailing speed of 40 mph, the minimum stopping sight distance is 275 feet. Measurements revealed that on Ridgepoint Ct looking east, there is 230 feet of visibility. 250 feet of visibility is provided looking westerly. On the north approach of Ridgecove Ct, 255 feet of visibility is provided looking westerly. All other intersections have adequate visibility for prevailing conditions.

Discussions with the Homeowners Association representatives on 2/17/04 revealed pedestrian safety crossing Ridgegate Drive as a major concern. The Mira Verde and East Ridgegate developments are both split in two by Ridgegate Drive. Residents must regularly cross the street to access Community facilities.

Based on the restricted visibility at Ridgecove Ct and at Ridgehaven Ct/Ridgepoint Ct, and the pedestrian crossing demand, installation of multi-way stop controls at these locations is appropriate. Installing marked crosswalks across Ridgegate Drive is desirable to provide positive guidance for the pedestrians. To provide adequate advance notification of the stop signs on Ridgegate Drive, Stop Ahead warning signs and pavement markings should also be installed.

These recommendations are not intended as traffic calming devices. Ridgegate Drive will remain a potential candidate for traffic calming as revisions to the City’s Neighborhood Traffic Calming Program are developed.

CONCLUSION

Adopting Staff’s recommendations will establish four way stop controls at the intersections of Ridgegate Drive and Ridgehaven Ct/Ridgepoint Court and Ridgegate Drive and Ridgecove Court, resulting in improved visibility and pedestrian access.

FISCAL IMPACT

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

Location pictures

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 RIDGEGATE DRIVE AND RIDGEHAVEN COURT/RIDGEPOINT COURT AND RIDGEGATE DRIVE AND RIDGECOVE COURT

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. Two all way stop intersections are hereby established at the intersections of Ridgegate Drive and Ridgehaven Court/Ridgepoint Court and Ridgegate Drive and Ridgecove Court.

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 3RD DAY OF AUGUST, 2004.

___________________________

MAYOR

ATTEST:

______________________

CITY CLERK

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 August 3, 2004.

CITY CLERK

CITY OF RANCHO PALOS VERDES