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Wait wait- one important factor that was overlooked How does the locomotive know that it has hit someone? And- Lety's say the signal can't reach the locomotive and the locomotive shuts down and comes to a complete stop and it takes an hour to get going again.. what ahppens if it blocks crossings for an hour? People can hardly wait for a freight train to pass at 35 MPH, how are they going to wait while it passes at a grand total of 0 MPH? they are going to get impatiant, and then it's like an Automic bomb, a chain reaction will ensue.
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