|
|
| Re: WMATA's Kawasaki Rail 7000-rail car series full scale model (1180325) | |||
 |
|||
| Home > SubChat | |||
|
[ Read Responses | Post a New Response | Return to the Index ] |
|
||
|
Re: WMATA's Kawasaki Rail 7000-rail car series full scale model |
|
|
Posted by Sand Box John on Sun Oct 7 20:21:24 2012, in response to Re: WMATA's Kawasaki Rail 7000-rail car series full scale model, posted by Dupont Circle Station on Sun Oct 7 17:29:40 2012. And, as far as there being a car shortage, that was a conscious decision on Metro's part. You have said so yourself. While the stations were built for 600' trains, the power grid was not and still is not capable of supporting them. Without the requisite power, those cars would just be collecting dust.The traction power distribution system was built to accommodate 8 car trains that had a potential gross weight of roughly 834,400 lbs, The majority of the rolling stock today has an 8 car train gross weight in the neighborhood of 896,000 lbs. Add to that the fact that the upgraded and newer rolling stock with all the bell and whistle consumes more power then the primitive preupgraded rolling stock. The traction power distribution system as I wright this has had most of the substations upgraded to accommodate those higher power requirements. Oh, wait...there isn't yard capacity for them, either. As to yard storage capacity, have you bothered to look at my track schematic, If you exclude the yard at Dulles Airport the capacity of storage tracks in all of the exiting yards is 1,453 that number is some what conservative as I did not count the tracks outside the shop buildings that are also used in some yards to store cars on. Add 68 if you include the tail tracks beyond Franconia-Springfield, Huntington, Largo and Vienna. The total is something north of 1,550, add Dulles Yard to the total you get something over 1,774. The exising fleet size is slightly short of 1,118. After all the options on the 7k cars are delivered the fleet size will be slightly short of 1,338. Yard storage capacity is not an issue. John in the sand box of Maryland's eastern shore. |
|
(There are no responses to this message.)
|
|