Collision
Metrolink commuter train 111, consisting of a 250,000-pound (110 t) EMD F59PH locomotive (SCAX 855) pulling three Bombardier BiLevel Coaches, departed Union Station in downtown Los Angeles at 15:35 PDT (22:35 UTC) heading westbound to Moorpark in suburban Ventura County. Approximately 40 minutes later, it departed the Chatsworth station with 222 people aboard, and had traveled approximately 1.25 miles (2 km) when it collided head-on with an eastbound Union Pacific local freight train. The freight train was led by two SD70ACe locomotives, UP 8485 and 8491, weighing 408,000 pounds (185 t) each. The Metrolink locomotive telescoped rearward into the passenger compartment of the first passenger car and caught fire. All three locomotives, the leading Metrolink passenger car and seven freight cars, were derailed, and both lead locomotives and the passenger car fell over.
The collision occurred after the Metrolink passenger train engineer, 46-year-old Robert M. Sanchez, failed to obey a red stop signal that indicated it was not safe to proceed into the single track section. The train dispatcher's computer at a remote control center in Pomona did not display a warning prior to the accident according to the NTSB. Metrolink initially reported that the dispatcher tried in vain to contact the train crew to warn them; but the NTSB contradicted this report, saying the dispatcher noticed a problem only after the accident, and was notified by the passenger train's conductor first.
Both trains were moving toward each other at the time of the collision. At least one passenger on the Metrolink train reported seeing the freight train moments before impact, coming around the curve. The conductor of the passenger train, who was in the rear car and was injured in the accident, estimated that his train was traveling at 40 miles per hour (64 km/h) before it suddenly came to a dead stop after the collision. The NTSB reported that it was traveling at 42 miles per hour (68 km/h). The freight was traveling at approximately the same speed after its engineer triggered the emergency air brake only two seconds before impact, while the Metrolink engineer never applied the brakes on his train.
Read more about this topic: 2008 Chatsworth Train Collision
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