Thirty-one cars were involved in 11 separate crashes in heavy fog along a one-mile stretch of eastbound state Highway 37 near Highway 121 in Sonoma County this morning, California Highway Patrol Sgt. Diana McDermott said. The fog was a significant factor in the collisions, she said. Several people were transported to hospitals with minor injuries, including a motorcycle rider, McDermott said. The CHP reopened eastbound state Highway 37 at 10:52 ......

San Francisco and four cities in Silicon Valley will launch the region’s first bike-share system this July, implementing a new transportation option that cities around the world have embraced to expand access to bicycling. The system will include 500 bicycles at approximately 50 stations in downtown San Francisco, plus another 500 bikes and 50 stations located near Caltrain stations in Redwood City, Mountain View, Palo Alto, and San Jose. The scope is more ambitious ......

 The Santa Clara County Public Health Department is hosting events over the next three days to help develop and implement healthy transportation options for students. National transportation experts, community members and local officials will participate in the events, which begin today at 1:45 p.m. with a "walkabout" at a San Jose elementary school, according to Amy Cornell, a department spokeswoman. The events will conclude on Wednesday, when participants will look toward the future and how to give kids ......

Caltrain has resumed full service in both directions following a fatal collision in Sunnyvale and says special service for 49ers fans at the Bayshore station should not be affected. Northbound tracks were reopened to regular traffic at 7 p.m., and southbound trains are running on schedule, Caltrain spokeswoman Christine Dunn said. The northbound Caltrain #439 struck and killed an adult male pedestrian at 4:15 p.m. on the train tracks at ......

Two pedestrians have been struck by cars in the past two days in Livermore, prompting police to urge people to drive more carefully. A 31-year-old woman was struck first around 7 a.m. Wednesday as she crossed Bluebell Drive near the Springtown Library, said Sgt. John Hurd. A westbound car stopped to let her cross, but another approaching driver tried to pass that car as it stopped, and struck the woman before she reached the ......