After enduring years of litigation, the diesel train system connecting San Francisco to the Peninsula and South Bay cities of San Jose and Gilroy will soon be upgraded to an electric rail system, in preparation for integrating with a future High Speed Rail. As part of the Caltrain Modernization Program (CalMod), the agency will begin work this week on the Peninsula Corridor Electrification Project.
Over the next three months, Caltrain will be upgrading utilities and testing soil along Peninsula stations, with an occasional need for single-tracking trains resulting in reduced service. By mid-2017, the agency expects to begin construction. The Peninsula Corridor portion of CalMod is expected to be completed by 2020.
Among numerous improvements cited, Caltrain expects a 97% reduction in carbon emissions, less noise, and an approximately threefold increase in train service.