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| Re: Future expansion wish list? (877933) | |||
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Re: Future expansion wish list? |
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Posted by AEM-7AC #901 on Fri Dec 25 23:01:44 2009, in response to Re: Future expansion wish list?, posted by trainsarefun on Fri Dec 25 20:33:35 2009. the current MAS is set lower than it would be under CBTCI thought the timers were basically installed as a realization that the rolling stock is incapable of braking within current signal distances, and thus, MAS was lowered to maintain a safe envelope. What I'd like to see is what is the trackage is capable of in terms of design speed, and whether or not we're operating at the maximum limits of the design, or if there's still some room for safe operation on curves and straight sections of track. PCCs are a classic example of 4 mphps Either the PCCs in operation in San Francisco and Boston have been neutered, or the 4.0 mphs meme is legend of PCC foamers. I've been on rapid transit and light rail cars that have delivered better acceleration. Paris a contemporary one, I think, using the smoothing. Per Wikipedia, RATP's modern fleet seems to hover around 2.25 mphs to 3.0 mphs. |
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