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| Re: TA is obsessed with CBTC, and ''New'' tech for no reason. (580223) | |||
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Re: TA is obsessed with CBTC, and ''New'' tech for no reason. |
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Posted by Stephen Bauman on Mon Mar 3 21:08:57 2008, in response to Re: TA is obsessed with CBTC, and ''New'' tech for no reason., posted by Jeff H. on Mon Mar 3 19:52:17 2008. Don't know what is meant by "average" block length...I assume that somebody at the TA counted up the number of signals and divided it by the number of track miles. I brought this up because I believe that a 1200 foot minimum distance between trains should be sufficient to guarantee all green signals ahead. It means that when the leader clears the station the follower is still 600 feet from the station entrance. Furthermore, this minimum distance occurs only when the follower is approaching the station. This distance increases to 3969 feet before the follower leaves the station (assuming a 90 second headway). Are you trying to slow down fast operators or get delayed trains back on schedule? Both. I also want them to know by how much they are off schedule - down to the second. |
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