More traffic control coming to Alpine Road/I-280


To encourage drivers to pay attention to stop signs at the intersection of Alpine Road and Interstate 280, the state is installing additional traffic control mechanisms. Some are already there.

On Sunday, Feb. 22, workers from the California Department of Transportation etched the pavement on the exit ramp of northbound I-280 to create rumble strips ahead of the stop and yield signs at Alpine Road, according to Caltrans spokeswoman Gidget Navarro.

The corrugated pattern in the pavement creates vibrations inside vehicles so as to warn drivers of the need to stop.

Rumble strips are planned for Alpine Road itself ahead of the stop signs that control eastbound and westbound traffic, but it might be another 10 days, Ms. Navarro said. The truck that does the etching broke down.

Caltrans will also be replacing five stop signs at the intersection with new and much larger signs, Ms. Navarro said.

Safety is a concern. In 2010, at a spot where bicycle and vehicle traffic converged without pavement markings to direct traffic, a cyclist collided with a truck and died. In a long awaited response, San Mateo County Public Works installed green bike lanes in 2013.

Recently, a group of Portola Valley residents complained to Caltrans (which owns the right-of-way there) about drivers blowing through the intersection's stop signs. Caltrans responded within weeks, residents said.


3 people like this
Posted by David B
a resident of Portola Valley: Central Portola Valley
on Feb 25, 2015 at 12:14 pm

A very big THANK YOU to Caltrans for being so responsive to our feedback.

Sorry, but further commenting on this topic has been closed.

Babka bakery to open Thursday in Palo Alto
By Elena Kadvany | 10 comments | 6,656 views

UCSB's CCS program
By John Raftrey and Lori McCormick | 1 comment | 1,195 views

Ten Tips for Teens and Young Adults to Survive a Dysfunctional Family
By Chandrama Anderson | 0 comments | 1,116 views