The configuration of southbound Metrolink train 100, which had a locomotive pushing passenger cars from the rear rather pulling them from the front, may have contributed to the severity of Wednesday's deadly derailment, according to transportation safety experts.
Trains pushed along the tracks generally have lighter, less sturdy passenger cars in front, which experts say have a greater chance of sustaining damage during a collision and are more likely to derail. The configuration also puts more people closer to the point of impact, placing a carful of passengers rather than an engine with the train's crew at the front.
The train that slammed into a Jeep Cherokee outside the Glendale station Wednesday was being pushed by a 140-ton locomotive and was led by a modified passenger car, known as a cab car, that weighed 56 tons.
"There is no question you are safer when the engine is pulling the train," said Loren Joplin, who worked as an accident and safety official for the Atchison, Topeka & Santa Fe Railway Co. in the 1970s. "For years, I have thought that using engines to push trains was going to end in a disaster. Had there been a locomotive on the front end, this would not have happened in Glendale."