QUOTE: Originally posted by retsignalmtr the railroads don't want to spend the money to install positive train control technology. with it even if the train crew missed a red signal the train would stiil be brought to a safe stop. there is a very simple mechanical device called an automatic train stop that is wired in with the signal. when a signal is red it raises a mechanical arm 2 1/2" above the rail outside of the rail and engages a brake valve on a locomotive causing the brakes to go into emergency. this would stop trains from running out of sidings and hitting other trains from the rear or head on.
Yes we are on time but this is yesterdays train