By Meghna Chakrabarti (The Third Rail)
Operator error and the lack of automated safety systems caused a May 2008 crash on the MBTA Green Line in Newton, according to official findings from the National Transportation Safety Board.
The operator, Ter’rese Edmonds, 24, died in the accident. Seven passengers were injured. The crash caused more than $8 million in damage.
NTSB investigators concluded that Edmonds ran through a red light near Newton’s Waban Station. MBTA regulations require that operators stop for one full minute at all red signals, then proceed at 10 miles per hour. Edmonds’s train was traveling at almost 40 miles per hour when it struck another Green Line trolley waiting at the next red light.
Investigators believe both lights were improperly stuck on red due to rusted wiring they found between the signals. The rust would have interrupted communication between the signals, making them go on and off incorrectly.
The trolley struck from behind had stopped at the second red signal that had been malfunctioning intermittently, investigators said.
However, even with malfunctioning lights and operator error, investigators called this an entirely preventable accident. Most of the MBTA’s rail lines are equipped with some form of collision prevention technology. The Green Line does not have such control systems in place.
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