Letter: Alpine backup is due to 280-bound driversIt is true that, in the morning, people turning left onto Alpine Road from Ladera encounter a lot of traffic, but there is a better solution than stoplights.
A large fraction of the morning traffic on Alpine is southbound, but it is not headed for Portola Valley. Many of those cars are headed to Page Mill Road, and they are using Alpine Road, and then Arastradero Road, to avoid the backed-up traffic at the Page Mill on-ramp to southbound Interstate 280.
To fix the traffic on Alpine at Ladera, eliminate the backup on I-280 south at the Page Mill on-ramp.
Chris Field, Brookside Drive, Portola Valley