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Thendsel t1_itv51ij wrote

Reply to comment by seattleollie in Metro studying Silver Line Express service by walkallover1991

I believe the problem is that due to cost savings during initial development, the system was built entirely as a two-track system. My understanding is that for express trains to work, you need a third track in spots to allow for local trains to pull aside.

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seattleollie t1_itvfwo9 wrote

In Philadelphia they have "A" and "B" trains on the Market Frankford line. Basically stops are labeled A or B during peak periods and skip stations so an A train doesn't stop at B stops. Once trains get into centre city they make all stops. Metro could set up a similar system

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Cythrosi t1_itvrqx2 wrote

SEPTA has basically had to constantly retool what stops are skipped since the day they implemented the system and even scrapped it on one of the lines if I remember correctly. Not sure it's a system really worth emulating.

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seattleollie t1_itvs66i wrote

Yea but it's a basic plan and alleviates the problem a bit

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Cythrosi t1_itw862z wrote

I mean, it seems to cause more problems than it solves for SEPTA.

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