Re: Flushing Line to B Division? (516512)

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Posted by AlM on Sun Jun 22 19:47:50 2003, in response to Re: Flushing Line to B Division?,
posted by Stephen Bauman on Sun Jun 22 17:01:59 2003.

If there were no stations, then the spacing between trains going 75 ft/sec at 40 tph would be 6750 feet.
OK, much of your post makes sense, except this sentence.

A train in BIE can decelerate at at least 4 ft/sec^2, right?

So given v^2 = 2ad, the distance you need even if the next train is stopped is only 75x75/8 = 703'.

Why the extra 6000 feet of margin for error? I could understand 1000 extra feet. But 6000 feet?


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