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Accident Report Detail

 
Washington Metropolitan Area Transit Authority Hi-Rail Maintenance Vehicle Strikes Two Wayside Workers Near the Rockville Station

Executive Summary

On January 26, 2010, about 1:40 a.m., a hi-rail vehicle—a truck or automobile that can be operated on either highways or rails—operating southbound about 0.9 miles north of the Washington Metropolitan Area Transit Authority Rockville Metro Station struck and fatally injured two automatic train control technicians who were working on the right-of-way replacing an impedance bond between the tracks. The hi-rail vehicle was traveling down the track in the reverse gear at about 13 mph.


Probable Cause

The National Transportation Safety Board determines that the probable cause of the accident was inadequate safeguards by the Washington Metropolitan Area Transit Authority to protect roadway workers from approaching hi-rail vehicles, and to ensure hi-rail operators were aware of any wayside work being performed.

Contributing to the accident was the inadequate communication of vital information concerning ongoing work by the Operations Control Center; the lack of an appropriate and effective lookout by the hi-rail vehicle operator and crew to carefully observe the track on approach; and the ineffective lookout for trains and/or hi-rail vehicles on the part of the automatic train control technicians.


Accident Location: Rockville , MD    
Accident Date: 1/26/2010
Accident ID: DCA10FR003

Date Adopted: 5/17/2012
NTSB Number: RAR-12-04
NTIS Number: PB2012-916304