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| Re: SI Railway - no new cars till 2020 - NY1 video (1364493) | |||
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Re: SI Railway - no new cars till 2020 - NY1 video |
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Posted by WillD on Sat Aug 29 22:49:34 2015, in response to Re: SI Railway - no new cars till 2020 - NY1 video, posted by ElectricTraction on Fri Aug 28 21:46:08 2015. I'm not as familiar with the B division cars, but the A division cars on the Lex Ave take off like a rocket ship.No, they don't. At least not to any greater degree than the R160s do. And the M-8's, while FRA heavy rail, are pretty close to that, and they weigh a lot more than any subway or rapid transit car. The fact that you think that, despite the M8s accelerating at 2mph/s, one third the acceleration of a HBLR Kinki-Sharyo LRV (and most LRVs, PCCs, and so on), shows just how flawwed attempts to determine acceleration through qualitative observations are. If SIR has a power issue that stops them from running rocketship-like trains, then upgrade the substations. ... Electric railroads should not be operated around the limits of their power supplies. Their power supplies should be upgraded to support the worst-case scenario imaginable in terms of power draw. Unfortunately there is a limited amount of money to go around. Replacing the rectifier/transformer sets in the substations to increase capacity at a time when the rolling stock is due for replacement may be needlessly expensive. Additionally there is a safety aspect to limiting the current that can be drawn through the substation equipment. |
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