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| Re: LIRR needs to improve ROW maintenance; new dieseld (497789) | |||
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Re: LIRR needs to improve ROW maintenance; new dieseld |
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Posted by AEM-7AC #901 on Tue Oct 2 20:45:39 2007, in response to Re: LIRR needs to improve ROW maintenance; new dieseld, posted by Chris R16/R2730 on Tue Oct 2 20:17:53 2007. If you were going to begin an electrification project from scratch, catenary would probably be the preferable mode. But both MNCR and the LIRR have large, well established third rail systems and thousands of cars designed to use such. Any new electrification on these 2 systems MUST be third rail based.The French actually converted their third rail commuter network around Paris to 25kV catenary during the 1960s and 1970s when the RER network was developed. It can be done, and the given the LIRR and MNRR's need to replace and upgrade substations for the introduction of each generation of MUs since the introduction of the M-1s in 1967, 25kV is starting to look more and more appealing. The easiest way is introduce new third rail + 25kV locomotives for the Eastern LI extensions, and upon the retirement of the current generation of equipment, the catenary infrastructure would be installed, and the last third rail based equipment would be replaced with catenary based equipment. |
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