Rancho Palos Verdes City Council
   

TO:

 

HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL

FROM:

 

DIRECTOR OF PUBLIC WORKS

DATE:

 

SEPTEMBER 17, 2002

SUBJECT:

 

TRAFFIC CALMING ON VIA RIVERA

Staff Coordinator: Nicole Jules, Sr. Engineer

RECOMMENDATIONS

  1. Approve the installation of speed humps along Via Rivera between Rue de la Pierre and Via Del Mar in accordance with the City’s Traffic Calming Program.
  2. Authorize the expenditure of up to $40,000 for the final engineering and construction of speed humps, signs and pavement markings along Via Rivera.
  3. Adopt Resolution 2002- , A Resolution of the City Council of the City of Rancho Palos Verdes Amending Resolution 2002-45. The Budget Resolution for Fiscal Year 2002-03, for a budget adjustment to the City’s Gas Tax Fund.

BACKGROUND

On February 22, 1999, property owners along Via Rivera submitted a petition to the Department of Public Works requesting traffic investigation regarding traffic associated with the Point Vicente Elementary School.

In January 2001, a traffic engineering investigation concluded that the Via Rivera community is impacted by both volume and speed of traffic to and from the Point Vicente Elementary School.

On February 19, 2002, the City Council reviewed the recommendation for Speed Humps on Via Rivera and requested staff to consider alternate traffic calming options.

On August 26, 2002, the Traffic Committee reviewed the various traffic calming measures and voted in favor of speed humps.

DISCUSSION

The City’s consulting Traffic Engineer developed 4 conceptual design alternatives for traffic calming on Via Rivera:

    1. Edge Line Striping Only
    2. This alternative would stripe Via Rivera similar to what was done on Ridgegate (white four inch wide edge line). There would be no loss of parking and would give the perception of narrowing the road. Please refer to Exhibit 1. This alternative is the least expensive to construct, would require minimal design and engineering time and could be accomplished without going through the public bid process. The use of a striped edge line has shown positive reduction in speed as exemplified on Ridgegate Drive between Hawthorne Boulevard and Highridge Road. There are no major drawbacks to this alternative except for the potential of not working to reduce the speed of vehicles. The cost for this improvement is approximately $2000.

    3. Speed Humps
    4. This alternative would construct five speed humps between Rue de la Pierre and Hawthorne Blvd. The humps would be approximately 3 inches high, 12 feet long and would be constructed from lip of gutter to lip of gutter. Please refer to Exhibit 2. The LA County Fire Department would prefer speed humps to be no more than 2-5/8 inches high. Signing and striping would be installed to warn motorists to slow down.

      There would be no to minimal loss of parking. This alternative would be more expensive to build, would require the preparation of plans and specifications and would require going through the formal bid process. Construction would most likely occur the first quarter of 2003. The use of speed humps has shown a positive reduction in speed. The major drawbacks would be concern over emergency response time and the potential for loss of vehicular control if the driver tries to go over the speed humps at a high rate of speed. The approximate cost for this improvement is $40,000.

    5. Chokers
    6. This alternative would construct six median islands (chokers) between Rue de la Pierre and Hawthorne Blvd. The chokers would be 30 feet long and 16 feet wide and have 8-inch curb faces. The chokers could be landscaped or finished with decorative concrete. Parking on either side of the choker would be restricted (eliminated). Please refer to Exhibit 3. This alternative would be the second most expensive to construct. This alternative would require the preparation of plans and specifications and would have to go through the public bid process. Construction would most likely be during the first quarter of 2003.

      Major drawbacks would be unfamiliar drivers and /or drivers driving too fast and running into the chokers. There is also the potential for a vehicle going too fast and rear-ending a parked car. Chokers are generally used at intersections and on generally flat roadways and would be new to RPV. The cost for this improvement is approximately $50,000.

    7. Chicanes

This alternative would construct three chicanes between Rue de la Pierre and Hawthorne Blvd. A chicane is a series of narrowings or curb extensions that create a narrowing effect on a stretch of roadway. Each set of chicanes would be 15 feet long and 14 feet wide with 8-inch curb faces. The chicanes could be landscaped or finished with decorative concrete. The radial curves of the chicanes would be designed to meet an 18-mile per hour design speed. Please refer to Exhibit 4. This alternative would be the most expensive, would require plans and specifications and would have to go through the public bid process. Construction would most likely be during the first quarter of 2003.

Major drawbacks would be unfamiliar drivers and /or drivers driving too fast and running into the chicanes. There is also the potential for a vehicle going too fast and rear-ending a parked car. Parking loss is greater with the chicanes and affects driveway access in several locations. The cost for chicanes is approximately $60,000.

CONCLUSION

After meeting with the Via Rivera community and consideration of the four concepts, the City’s Traffic Engineer and Traffic Committee recommend the installation of speed humps on Via Rivera from Via Del Mar to Rue de la Pierre.

FISCAL IMPACT

The estimated total cost to install the speed humps is $40,000.

Installation of speed humps

$24,000

Installation of signs & pavement markings

$10,000

Final engineering, inspection & Administration

$6,000

Total

$40,000

Funding for this project was included in the adopted FY 2001-02 Budget, however, it was not carried over as continuing appropriations. Therefore, an adjustment to the budget is required. The FY2002-03 projected ending Gas Tax Fund balance is $91,847.

Respectfully Submitted,

___________________________

Dean E. Allison

Director of Public Works

Reviewed,

_________________________
Les Evans
City Manager

Attachments:
Resolution 2002-xx
Traffic Calming Exhibits
Location Map
Notification Letter
Notification List

August 26, 2002 Traffic Committee Meeting Minutes

RESOLUTION NO. 2002-__

A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF

RANCHO PALOS VERDES, AMENDING RESOLUTION 2002-45, THE BUDGET APPROPRIATION FOR FISCAL YEAR 2002-03, FOR A BUDGET ADJUSTMENT TO THE CITY’S GAS TAX FUND

 

WHEREAS, Section 3.32 of the Rancho Palos Verdes Municipal Code provides that all expenditures in excess of budgeted allocations must be by supplemental appropriation of the City Council; and

WHEREAS, on June 12, 2002, the City Council of the City of Rancho Palos Verdes adopted Resolution 2002-45, approving a spending plan and authorizing a budget appropriation for the 2002-03 fiscal year; and

WHEREAS, it is necessary for the City to allocate additional funds to install a series of 5 speed humps along Via Rivera in accordance with the City’s Traffic Calming Program,

WHEREAS, a budget increase in the Gas Tax Fund is necessary to authorize the expenditure of additional funds for the project.

BE IT, THEREFORE, RESOLVED BY THE CITY COUNCIL OF THE CITY OF RANCHO PALOS VERDES:

The following adjustments be made to the following fund budget:

Gas Tax Fund: 102-302-30 Street Maintenance $ 40,000

PASSED, APPROVED, AND ADOPTED THE 17TH DAY OF SEPTEMBER, 2002.

___________________________
MAYOR

ATTEST:
______________________
CITY CLERK

Resolution No. 2002-
Page 1 of 2
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. 2002- was duly and regularly passed and adopted by the said City Council at regular meeting thereof held on September 17, 2002

_____________________________
CITY CLERK
CITY OF RANCHO PALOS VERDES