
http://www.wjla.com/news/stories/0609/634125.html
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All signals have a "TRIP STOP" which is in the raised or "TRIPPING" position when the signal is RED. If the train operator tries to pass the signal the TRIP STOP will open a air valve called the "TRIP COCK" on the subway car's TRUCK (the TRUCK is the part of the car which holds the motors and wheels). The top of the tripper and the trip cock are painted yellow so that if they are engaged, there will be telltale strikemarks.
The open valve causes the train brakes to apply in EMERGENCY. The train brakes cannot be released again for about 20 seconds giving the train operator time to think about what he/she did wrong.
Nimbus wrote:The retired General that scrambled the jets in the 911 attack has been reported killed in this train crash..
http://blogs.abcnews.com/theworldnewser ... in-dc.html
This was reported to have occurred near the Maryland DC border. Must have been a junction failure..
Great, the conspiracy nuts will be all over this.
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