Clementi station

Clementi (EW23) is an elevated Mass Rapid Transit (MRT) station on the.

Train collision
On 5 August 1993, at around 7.53 am, two trains collided in the station. It appeared that one train had stopped at the station for longer than usual after experiencing a technical fault, and then a second westward train hit the first. 156 commuters were injured, many of whom were on their way to work. Eight were admitted to three hospitals, while the rest received outpatient treatment.

The results of the inquiry were announced by the SMRTC on 19 October 1993. Shortly after the accident The Straits Times had reported that an oil spill on the tracks was responsible for the second train's inability to brake in time. Some 50 litres of oil had spilled from a locomotive doing maintenance work on the track in the pre-dawn hours of 5 August. SMRT staff had been alerted to the spill and had dispatched a cleaning crew to the neighbouring Buona Vista, but approval to access the tracks was delayed. Already ten trains had reported difficulty braking on the track that morning. The 11th train had to use its emergency brakes upon reaching Clementi station, and while it was waiting for the brakes to be recharged so that it could move off again, the 12th approached the station and could not brake in time to avoid hitting the 11th train.

The Communications Minister at that time, Mah Bow Tan, said that as the SMRT staff followed procedures and none were found to be negligent, so no staff would be punished. However SMRT promised to look into the problem of oil spillage from maintenance locomotives by replacing the hoses and oil seals on all locomotives, checking all locomotives for leaks upon their return to depots, and assigning a station master to inspect tracks for oil. Procedures were also amended so that trains would not move off from stations preceding the spill until it had been cleaned up.