They are starting to do something like this, but it is vastly inferior. Now, they make announcments over the PA when a train is 1-2 stops away. It would still be nice to have a real time tracking system with lots of LED lights to show where the trains are, but that will probably never happen (for another 20 years at least).
Actually, this is wrong. You can hold the doors, and open them even when they're closed. I've seen it done. I've also seen a bottle stuck in when the doors were closing, and the train started moving with the door still semi-open. You can open the doors with a certain tolerance when they're already closed. This usually depends on what type of train it is.
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So... where can I download this?
if i'm not mistaken, OC-48 is 2.488 Gbps according to http://searchnetworking.techtarget.com/sDefinition /0,,sid7_gci212685,00.html
They are starting to do something like this, but it is vastly inferior. Now, they make announcments over the PA when a train is 1-2 stops away. It would still be nice to have a real time tracking system with lots of LED lights to show where the trains are, but that will probably never happen (for another 20 years at least).
Actually, this is wrong. You can hold the doors, and open them even when they're closed. I've seen it done. I've also seen a bottle stuck in when the doors were closing, and the train started moving with the door still semi-open. You can open the doors with a certain tolerance when they're already closed. This usually depends on what type of train it is.