TC - Item 2B - Keep Clear Marking - Walnut Grove at Drayer Lane and La Madrina
ROSEMEAD TRAFFIC COMMISSION STAFF REPORT TO: TRAFFIC COMMISSION FROM: CHRIS MARCARELLO, PUBLIC WORKS DIRECTOR DATE: FEBRUARY 2, 2012 SUBJECT: KEEP CLEAR MARKINGS – WALNUT GROVE AVENUE
AT DRAYER LANE AND LA MADRINA DRIVE SUMMARY A request was received for the Traffic Commission to review traffic conditions and access at the intersections of Walnut Grove Avenue and
Drayer Lane and Walnut Grove Avenue and La Madrina Drive. Residents in these areas are concerned that the high volume of vehicles on Walnut Grove Avenue creates problems for residents
trying to access the residential areas adjacent to Walnut Grove Avenue. Staff Recommendation It is recommended that the Traffic Commission recommend to the City Council that “Keep Clear”
pavement markings, with limit lines, be installed in the southbound travel lanes of Walnut Grove Avenue at both Drayer Lane and La Madrina Drive. ANALYSIS Walnut Grove Avenue is approximately
80 feet wide with two traffic lanes for both north and southbound traffic. Opposing lanes of traffic are separated by a two-way left turn lane. The posted speed limit on Walnut Grove
Avenue is 40 mph. In the vicinity of the proposed “Keep Clear” zone, parking is permitted on both sides of Walnut Grove Avenue. The intersection at Walnut Grove Avenue and San Gabriel
Boulevard causes significant back up down Walnut Grove during peak travel times. Field observations were made at this location in early morning and early afternoon hours during a regular
weekday. Traffic congestion was moderate to heavy at both times. It was observed that during peak travel times, vehicle delay/congestion on Walnut Grove Avenue can cause delays for vehicles
entering/exiting Village Lane. This vehicle queue often blocks access to Village Lane. In order to improve vehicle access and improve safety for left turning vehicles, it is recommended
that “Keep Clear” pavement markings be added in northbound travel lanes with limit lines at the intersection of Walnut Grove Avenue and Village Lane. These markings will help provide
a gap to allow left turning vehicles to enter this location. Photographs of the existing conditions are included in your packet for further review. Submitted by: Sean Sullivan
Traffic Commission Meeting October 7, 2010 Page 2 of 2 Management Analyst Attachment 1: Site Conditions and Proposed Keep Clear Markings