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Old 05-19-2012, 12:01 AM
 
47 posts, read 72,316 times
Reputation: 23

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This is what I notice about SEPTA in the Philadelphia area. Also, the signs say "railroad crossing" whether it's a SEPTA trolley, SEPTA train, Amtrak train, or freight train, but trolley crossings have a normal traffic light instead of the traditional railroad gates/stop lights. On an unrelated topic, it was funny when I asked my friend for help with riding the urban trains when I was new to them. She said you can't "fool around" when getting on or getting off. That includes being "nice" to others. For example, you can't invite others to take your place in line, and you can't expect people in your way to move without asking them when you need to get off.
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Old 05-19-2012, 12:49 AM
 
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Trolleys have a very short braking distances, roughly equal to a bus. Trains take several minutes to be brought to a stop and back up to speed.
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Old 05-21-2012, 11:36 AM
 
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Trolleys = lightweight. Freight trains = million pounds or more and over a mile to stop.
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Old 05-21-2012, 01:28 PM
 
Location: Orlando, Fl
492 posts, read 1,268,394 times
Reputation: 452
Because, Might is Right.
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Old 05-21-2012, 05:19 PM
 
28,675 posts, read 41,237,091 times
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Car vs. train = bad



Car vs. Trolley = not as bad

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Old 05-21-2012, 06:28 PM
 
16,308 posts, read 25,561,632 times
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Why do trolleys stop for cars at crossings, but cars have to stop for trains?

Short answer, Physics

You do the math (hint: mass and inertia)
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