General Discussion
In reply to the discussion: Passengers watched killing on Metro car. Should they have intervened? [View all]mahatmakanejeeves
(57,740 posts)Last edited Fri Jul 10, 2015, 08:30 AM - Edit history (1)
When the train operator is alerted, he gets on his radio and contacts the train dispatcher. The train dispatcher alerts the WMATA (Washington Metropolitan Area Transit Authority) transit police. The transit police show up at the next station where they can intercept the train. The train is stopped there and offloaded so that the police can do what they can. If the bad guy has left the premises, his image is on several video cameras, and he is tracked that way. Each car has cameras, the platforms have cameras, and the sidewalks around the Metro stops have cameras. There will be video of him.
Second, the "emergency stop cord." There is no such thing on Metro cars. There is no such thing on intercity passenger trains either, at least nothing that you can pull that will stop the train. Even in the old movies, that was made up.
All pulling on a cord on an old passenger car would do was cause air to flow in an air line that ran from the passenger cars to the locomotive. This air flow caused a signal to sound in the locomotive. The engineer would then actuate the brakes, if that was the indication he got from the signal. Pulling the cord itself would do nothing to actuate the brakes.