San Francisco, CA Chronicle, 12/6/17:
Muni Streetcar Hits Bus On Market Street, Causing Minor Injuries
San Francisco's Market Street is closed between Eighth and Ninth streets because of a collision involving two Municipal Railway vehicles that has resulted in multiple minor injuries.
A historic streetcar on the F-Market & Wharves line appears to have rear-ended a 6-Haight/Parnassus bus at Eighth and Market streets shortly before 2 p.m., according to Muni spokesman Paul Rose.