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| Re: PHOTOS: MBTA MPXpress Locomotive #010 In Delivery (1024559) | |||
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Re: PHOTOS: MBTA MPXpress Locomotive #010 In Delivery |
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Posted by aem7ac on Wed Jan 12 00:01:08 2011, in response to Re: PHOTOS: MBTA MPXpress Locomotive #010 In Delivery, posted by WillD on Tue Jan 11 14:50:35 2011. But the rest of the developed world doesn't bother with a 4600hp diesel commuter locomotive to begin with. If they're going to need that amount of power to pull trains that long they'll electrify and offer services on shorter headways with better schedules.What makes you think electrified services have better headways or have more power for that matter? Electrified services are more economical when applied to high density corridors, yes. If you electrify a service that isn't high density, then you basically just end up paying more for infrastructure and have it rust away. The decision to electrify on a passenger railroad have very little to do with required power and/or tractive effort. Our cities are no different from theirs, indeed our requirements are that much more extreme, yet our definition of commuter rail is locked into a 1950s mindset which makes them virtually useless when compared to other networks. Since you are so convinced that the U.S. commuter rail is locked into a 1950s mindset, why don't you point out a specific feature on a typical commuter rail system (any system) that has not changed since the 1950s? I can't think of any and I have some experience in this area. Do you know what they were using in the 1950s? Budd cars and FL-3's, right? Position lights with basic CTC (traffic levers, etc.) right? Power frequency cab signals driven by Vane relays right? Which commuter rail system do you know of that's buying this stuff today? |
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