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| Re: Future expansion wish list? (877778) | |||
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Re: Future expansion wish list? |
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Posted by trainsarefun on Fri Dec 25 17:16:26 2009, in response to Re: Future expansion wish list?, posted by AEM-7AC #901 on Fri Dec 25 17:00:48 2009. Mind you, if we're going to turn the LIRR over to NYCTA, at minimum, I'd want wide station spacing, 65mph MAS, 3.0 mphs acceleration, and a redesigned Valley Stream station with platforms for Babylon services and transfers for riders coming from the subway.All of that should be possible, well maybe 10 mph slower max speed, which is almost negligible. Keep in mind that you have several 50-60 mph curves on what's otherwise 80 mph MAS trackage so that limits running time even with M7s, and R160s seem to accelerate as well if not better than the M7s over the 0-30 mph initial burst segment after which the M7 does drop off precipitously, at least per their own otherwise reliable seeming speedometers. the same old, slow 35 mph MAS Queens Railway. It would be great to speed that up, but given the timed signals, I'm not sure how that could be done; hence my prescription that we should study how to bring acceleration rates into the 4-5mph/s range and take advantage of computer controlled smoothing of the jerk rate. |
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