NTSB faults CTA in derailment

摘要

The National Transportation Safety Board has determined the probable cause of a 2006 derailment of a Chicago Transit Authority train as unsafe track conditions caused by "ineffective management and oversight" of track inspection and maintenance and system safety programs.rnOn July 11, 2006, the last car of northbound CTA train number 220 derailed in the tunnel between Clark/Lake and Grand/Milwaukee stations in downtown Chicago. After the train came to a stop, electrical arcing between the last car and the 600-volt third rail generated "a significant amount of smoke, creating hazardous conditions," NTSB said. There were 152 injuries, most from smoke inhalation. Total damage exceeded $1 million.