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Accident Report Detail

Chicago Transit Authority Collision of Trains No. 104 and No. 315 at Addison Street Station

Executive Summary

On January 9, 1976, at 8:06 a.m., Chicago Transit Authority (CTA) train No. 315 struck the rear end of train No. 104 while it was standing at the Addison Street Station platform in Chicago, Illinois. The impact forces extensively damaged the lead car of the moving train and the rear car of the standing train, and slightly damaged the other cars in both trains. Damage to the equipment and track was estimated to be $267,000. Of the 381 passengers who were injured in the collision, 1 passenger died.

Probable Cause

The National Transportation Safety Board determines that the probable cause of this accident was the failure of the motorman of train No. 315 to perceive standing train No. 104 at a sufficient distance to permit him to stop his train before striking No. 104. Contributing to the collision were the rule that permitted the operation of the train with the automatic train control and the cab signals inoperative, the lack of consistent enforcement of operating rules, the absence of flag protection against following trains, the failure of the train phone system to provide reliable communications, and the violation of the 25-mph speed limit required by Rule 178B.

Accident Location: Chicago , IL    
Accident Date: 1/9/1976
Accident ID: 80015

Date Adopted: 7/8/1976
NTSB Number: RAR-76-09
NTIS Number: PB-256593/5

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