|
|
| Re: BL-20G's For The LIRR ? (748740) | |||
 |
|||
| Home > SubChat | |||
|
[ Read Responses | Post a New Response | Return to the Index ] |
|
||
|
Re: BL-20G's For The LIRR ? |
|
|
Posted by WillD on Wed Feb 25 12:59:41 2009, in response to Re: BL-20G's For The LIRR ?, posted by RonInBayside on Wed Feb 25 12:43:39 2009. No, you don't. ACCatenary has its advantages, but if it were superior in all settings to DC third rail, then the newest systems (Washington Metrorail, Miami Metrorail, MARTA) would all have been built with AC catenary. They were not.Try again Ron, those are subway systems. Despite its outward appearance the LIRR is not a subway, but in fact a commuter railroad. The only advantage of third rail is its ability to function in areas with reduced clearances, such as subways. Clearances are definitely not a deciding factor in the selection of power sources on the eastern end of Long Island. And if you're going to offer up non sequitors why not at least provide truly modern non sequitors? The Athens Metro Line 3, opened in 2003 uses a combination of 750vdc and 25kv power supplies. A much more relavent comparison would be Hamburg's S-bahn, where the 1200vdc third rail network is being used to support a dual voltage system to extend the S3 to Stadte. The network is discussing the extension of 15kv operation beyond the existing terminus in Stadte. |
|
(There are no responses to this message.)
|
|