Starting on Tuesday, April 28, Caltrans will phase in metering lights on 17 southbound U.S. 101 on-ramps in San Mateo County.
The new lights will be located between highway segments from Brisbane to San Mateo. Click here for a map.
During the first phase, the lights will stay green to give drivers time to adjust to the change, according to the transportation agency. Then starting on Tuesday, May 5, the lights will cycle between red and green from 2:30 p.m. to 8 p.m.
The following week, on Tuesday, May 12, the lights will begin cycling during the morning commute, from 6 a.m. to 10 a.m.
The agency said that all metering lights will allow one car per green light except for the on-ramp at eastbound State Route 92 where it connects to southbound U.S. 101, which will allow two cars per green light.