Work will continue this week on the new pedestrian underpass at the Caltrain station in Santa Clara, Calif. The underpass will connect the north- and southbound platforms, allowing two trains to pass through the station at the same time and improving safety for pedestrians in the station.

Passengers at the station are boarding the train from a temporary platform. The temporary platform will be in use for approximately six months. Scheduled train stops at the station will not be affected by the construction.

The work is part of an 18-month station improvement project that will add a new wider, longer center-boarding platform and extend the southern platform 150 feet.

Work continues on a VTA project that will improve safety at eight grade crossings in Sunnyvale, Mountain View and Palo Alto Oct. 24-, crews will work at Mary Avenue crossing in Sunnyvale and at the Castro Street crossing in Mountain View.

Oct. 24-28, crews will weld tracks at the San Francisco train yard. Oct. 24-29, Caltrain will use a sophisticated on-track vehicle to inspect and record the condition of the tracks. Oct. 24-28, crews will replace crossties and resurface the tracks between the Sunnyvale and Santa Clara stations.

Oct. 22-25 and again on Oct. 28 and 29, crews will be working on signal house wiring modifications between the San Jose Diridon and Tamien stations.