On January 4, 2017, at 12:47 p.m. eastern standard time, Southeastern Pennsylvania Transportation Authority (SEPTA) trolley 9101 (struck trolley), traveling northwest on trolley route 10 with an estimated 47 passengers on board, stopped near the intersection of Lancaster Avenue and 38th Street, in Philadelphia, Pennsylvania, to offload passengers. SEPTA trolley 9085 (striking trolley), with 6 passengers on board, was also traveling northwest on trolley route 10, and struck stopped SEPTA trolley 9101 in the rear at an estimated impact speed of 10 mph. First responders transported 40 passengers and both operators to local hospitals for treatment of minor injuries. The total estimated equipment damage to both trolleys was $60,000. At the time of the accident, the sky was partly cloudy, visibility was 10 miles, and the temperature was 54°F.