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| (950243) | |
Washington DC trolley wires |
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Posted by TransitChuckG on Tue Jun 29 20:51:40 2010 Overhead wires will be allowed |
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| (950265) | |
Re: Washington DC trolley wires |
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Posted by SLRT on Tue Jun 29 21:12:56 2010, in response to Washington DC trolley wires, posted by TransitChuckG on Tue Jun 29 20:51:40 2010. Since they reserve the right to ban wires in some areas, I wonder how they would deal with such cases. I can think of three obvious ways.1. No streetcars at all. 2. Conduit, as in days of yore. 3. If the length of the prohibited area is not greater than a half-mile or so, they could run on battery power, as has been done in some historic areas in Europe. A fourth possibility would be electrified studs in the street, with the power activated as a streetcar passes over them. I don't know if this method has ever been used in actual service anywhere. |
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| (950271) | |
Re: Washington DC trolley wires |
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Posted by Dekatyou on Tue Jun 29 21:20:12 2010, in response to Re: Washington DC trolley wires, posted by SLRT on Tue Jun 29 21:12:56 2010. You should add it;4, Running as Subway (like as Boston) 5, Diesel powered (as River Line) |
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| (950318) | |
Re: Washington DC trolley wires |
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Posted by AEM-7AC #901 on Tue Jun 29 22:05:34 2010, in response to Re: Washington DC trolley wires, posted by SLRT on Tue Jun 29 21:12:56 2010. A fourth possibility would be electrified studs in the street, with the power activated as a streetcar passes over them. I don't know if this method has ever been used in actual service anywhere.See Tramway de Bordeaux's Alimentation par Sol system as designed by Alstom. It's effectively a third rail system that powers up as the tram approaches each 8 meter segment of third rail. Bordeaux in its past once had a conduit based tram network that was replaced with buses like DC. Angers and Reims are expected to have the same set up for their tramways. FWIW, the other alternative to APS is Bombardier's Primove system where power is transferred via induction to the streetcar. It's currently running as trial on a small branch line of Augsburg's streetcar network. |
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| (950373) | |
Re: Washington DC trolley wires |
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Posted by Jackson Park B Train on Tue Jun 29 23:28:42 2010, in response to Washington DC trolley wires, posted by TransitChuckG on Tue Jun 29 20:51:40 2010. welcome to 21st century, DC. |
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| (950385) | |
Re: Washington DC trolley wires |
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Posted by Olog-hai on Tue Jun 29 23:49:28 2010, in response to Re: Washington DC trolley wires, posted by Jackson Park B Train on Tue Jun 29 23:28:42 2010. Trolley wire is 19th century technology. |
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| (950510) | |
Re: Washington DC trolley wires |
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Posted by streetcarman1 on Wed Jun 30 11:08:51 2010, in response to Re: Washington DC trolley wires, posted by Olog-hai on Tue Jun 29 23:49:28 2010. "Trolley wire is 19th century technology."According to who? There is no difference as far as an electrical source via overhead wiring that other forms of railroad vehicles use. Are you proposing battery-operated vehicles? or some other form here? Please explain your premise here. |
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| (950577) | |
Re: Washington DC trolley wires |
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Posted by Henry R32 #3730 on Wed Jun 30 13:58:32 2010, in response to Re: Washington DC trolley wires, posted by streetcarman1 on Wed Jun 30 11:08:51 2010. Eh?1. The statement is true, it is 19th Century technology. 2. Stating that it's 19th Century technology doesn't imply that it's bad. Indoor plumbing is 19th Century technology as well, doesn't mean I'm about to build my own cistern and water filtration system in my attic. 3. Urban public transportation systems using this 19th century technology were much more ubiquitous in the past than they are today... in short, the phrase "welcome to the 21st century" is more aptly put "welcome back to the early 20th century, when public transit in the US kicked ass and was the envy of the world". |
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| (950578) | |
Re: Washington DC trolley wires |
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Posted by Olog-hai on Wed Jun 30 14:00:02 2010, in response to Re: Washington DC trolley wires, posted by streetcarman1 on Wed Jun 30 11:08:51 2010. According to who?According to history! Is that a bad thing? Internal combustion engines are also 19th-century technology; Karl Benz put out his first automobile in 1879. Please explain your premise here Simple: It's not 21st-century technology. That's a bare, immutable fact. |
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| (950579) | |
Re: Washington DC trolley wires |
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Posted by Olog-hai on Wed Jun 30 14:01:37 2010, in response to Re: Washington DC trolley wires, posted by Henry R32 #3730 on Wed Jun 30 13:58:32 2010. Yeah, that's more like it. And FTR, even if the USA were to engage in heavy HSR implementation, it still wouldn't be an aspect of the 21st century, but rather the latter 20th. |
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| (950850) | |
Re: Washington DC trolley wires |
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Posted by Jon Bell on Wed Jun 30 22:41:10 2010, in response to Washington DC trolley wires, posted by TransitChuckG on Tue Jun 29 20:51:40 2010. I was half hoping we'd get to see a nice modern version of a "plow pit." Roomy, nice lighting, air conditioning, TV on the wall (with scrolling messages alerting the plow-person that a car is coming), refrigerator for storing lunch... |
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| (950904) | |
Re: Washington DC trolley wires |
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Posted by Randyo on Thu Jul 1 00:38:26 2010, in response to Washington DC trolley wires, posted by TransitChuckG on Tue Jun 29 20:51:40 2010. As I mentioned in another thread on this topic, an all service type of LRV along the lines of the NJ PSCT all service trolley coaches could be used. It would run on wires where permitted and on internal combustion where wires were banned. |
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| (950910) | |
Re: Washington DC trolley wires |
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Posted by Jackson Park B Train on Thu Jul 1 00:55:39 2010, in response to Re: Washington DC trolley wires, posted by Jon Bell on Wed Jun 30 22:41:10 2010. Right. As a DC born guy, I don't miss the conduit. I LIKE catenary/trolley wires. So, my comment about the 21st century was more one of a more pragmatic aestheic sense. |
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| (950911) | |
Re: Washington DC trolley wires |
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Posted by Olog-hai on Thu Jul 1 00:58:28 2010, in response to Re: Washington DC trolley wires, posted by Randyo on Thu Jul 1 00:38:26 2010. No, that wouldn't work very well. Dual-mode light rail is designed for diesel operation outside of cities, besides. (You do recall that DC's streetcars had both conduit operation and trolley pole operation, right?)  |
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| (951030) | |
Re: Washington DC trolley wires |
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Posted by RailBus63 on Thu Jul 1 09:30:21 2010, in response to Washington DC trolley wires, posted by TransitChuckG on Tue Jun 29 20:51:40 2010. Sanity prevails. |
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| (951143) | |
Re: Washington DC trolley wires |
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Posted by Jersey Mike on Thu Jul 1 12:57:57 2010, in response to Washington DC trolley wires, posted by TransitChuckG on Tue Jun 29 20:51:40 2010. Ugh! They should have installed conduit or ground level power supply. |
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| (951262) | |
Re: Washington DC trolley wires |
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Posted by TransitChuckG on Thu Jul 1 16:23:09 2010, in response to Re: Washington DC trolley wires, posted by Jersey Mike on Thu Jul 1 12:57:57 2010. More newws about the wires.Blackmail? |
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