The Straits Times | SMRT collision: Engineering firm in charge of new signalling system 'could have done better' The Straits Times Two trains had collided at Joo Koon MRT station on the morning of Nov 15. The signalling system had mistakenly profiled the stalled vehicle as a three-car train instead of the six-car train that it was.ST PHOTO: JONATHAN CHOO. Published. 1 hour ago. More. 2 full-day shutdowns, shorter operating hours for 19 NSEWL MRT stations in December: LTA, SMRT |