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| Re: How will WMATA run 3 services on two tracks? (644918) | |||
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Re: How will WMATA run 3 services on two tracks? |
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Posted by Sand Box John on Sun Jul 6 00:45:03 2008, in response to How will WMATA run 3 services on two tracks?, posted by RonInBayside on Sat Jul 5 22:52:12 2008. Very simple.They will trade Blue line slots south of Rosslyn to the K route. Those new K route slots will be divided between the Silver and Orange lines. In the case of the mid city E and F routes. Yellow line slots will be traded to the Blue line. When you add the slot traded to the train off the N route Silver line, peek headways on the Orange line west of East Falls Church remain the same. The K route in North Arlington will end up having more service, The Yellow line south of King Street will have less. Service on the three trunks will remain the same. Came across a document at wmata.com that indicates WMATA will labeling train running between Springfield-Franconia and terminals on the F as Aqua. Background: The full length of all routes have their train control and signaling system designed to accommodate 90 second headways. The future N route will have train control and signaling system designed to accommodate 135 second headways. WMATA presently advertises 180 second headways peek on the C, D route Blue, Orange, E, F route Green Yellow and C route Blue, Yellow trunks. Base on the document I have read WMATA has no plans in the near term or after the full build out of the of the N route Silver line to shorten headway below what is presently advertised. WMATA couldn't shorten their headway even if they wanted to because they wouldn't have enough rolling stock based on their planed rolling stock procurement schedule. The headway specification on the N route will have no effect on the headways east of Rosslyn. It is unlikely that WMATA will run 2 consecutive Silver line train off N route through Rosslyn. John in the sand box of Maryland's eastern shore. |
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