A head‑on collision between two cars on trolley tracks near the Back of the Hill stop on Boston’s Green Line E branch halted service in both directions on October 11, 2026 at 5:35 p.m.
The Massachusetts Bay Transportation Authority suspended the Green Line E service while crews cleared the wreckage. During the interruption, 39 buses were deployed to assist riders.
Service on the line resumed at 6:48 p.m. after the tracks were cleared and normal operations could continue.