"gprimr1"
That is a huge mistake in my opinion. My parents live in Upper Marlboro and we use Dulles for our travel needs.
The design and configuration of system was not built the way it was for the purpose of providing transit service from one side of town to the other. It was designed to move large amounts of people from the suburbs to the urban core.
We would love to use the new metro when it opens, but my god, to go from Largo to Dulles via Metro would be such a waste of time.
As it is now, trying to use it to commute from one side of town to the other is a waste of time.
The vast majority of the boarding that will be generated by the Tysons, Dulles Loudoun County N Route Silver line will not be going to destinations east of Capitol Hill.
I happen to believe that at least one third of the boarding that will originate on the line will not be going to destinations outside of the Commonwealth of Virginia.
Oh, and for your information, the running time between Largo Town Center and Dulles Airport is 85 minutes. That is provided that the train you board at Largo is going to Dulles.
WMATA plans to run selected train out of New Carrollton and Largo to Dulles and beyond to Ashburn. Add 3 minutes peak or 6 minutes off peak if you have transfer from a Blue line train to a Silver line train.
The running time was calculated by adding the running times that are generated at the metrorail stations page at
wmata.com with the running time that are in Volume I
chapter 6 (497 KB PDF file) page 12 of the Final Environmental Impact Statement.
John in the sand box of Maryland's eastern shore.