HomeMy WebLinkAbout1993-12-06; Traffic Safety Commission; ; Install a LEFT TURN YIELDS sign on the traffic signal mast arm for southbound Carlsbad Boulevard traffic that turns left onto Cerezo DriveCflY OF CARLSBAD
TRAFFIC SAFE1Y COMMISSION
SfAFF REPORT
COMMISSION MEETING OF: December 6, 1993 ITEM NO. 6A
LOCATION: Intersection of Carlsbad Boulevard/Cerezo Drive
INITIATED BY: Bailey Noble, 5740 Los Robles Drive, Carlsbad, California 92008
REQUESfED ACTION: Install a LEFT TURN YIELDS sign on the traffic signal mast
arm for southbound Carlsbad Boulevard traffic that turns left
onto Cerezo Drive.
DATA:
At the November 1, 1993 Traffic Safety Commission meeting Mr. Noble requested
a regulatory sign be installed on the traffic signal mast arm. He stated that some
drivers are confused by the green indication (green ball) at the traffic signal when
the driver attempts to turn left. Mr. Noble stated that some drivers, due to
confusion, mistake the green ball for a green arrow and turn left in front of
approaching northbound vehicles, thus violating the right of way of the northbound
vehicle.
Traffic signal installation was completed at the subject intersection in July 1990
with the signal turned on date being July 26, 1990. This traffic signal is a two-
phase signal with no protected left turn serving the southbound Carlsbad Boulevard
to eastbound Cerezo Drive movement. Turning movements at this intersection are
light. Several traffic collisions have occurred at this intersection since July 1990,
however, none were caused by a southbound left turning vehicle and violating the
right of way of a northbound vehicle.
Cerezo Drive intersects Carlsbad Boulevard and forms a 'T' intersection. Bicycle
lanes have been installed on both sides of Carlsbad Boulevard. On Carlsbad
Boulevard there is one traffic lane in each direction with a left turn lane serving the
southbound to eastbound turning movement. A traffic signal head is located over
the left turn lane and southbound through lane. Adjacent to the signal head over
the left tum lane a NO U TURN symbol sign has been installed.
RECOMMENDATION:
The Traffic Safety Coordinating Committee recommends that a LEFT TURN YIELDS
sign be installed next to the NO U TURN symbol sign that is located adjacent to the
signal head over the left turn lane.
NECESSARY CflY COUNCIL ACTION:
No City Council action is required.