>The current Silver Line is one hour and 12 minutes. The extension will bring it up to about 90 minutes. That's 45 minutes on the silver part of the Silver Line, and then Ballston to Metro Center is 15 minutes, Metro Center to Stadium-Armory is another 15 minutes, and then Stadium-Armory to Largo is another 15 minutes. So you're looking at about an hour and six to L'Enfant from Ashburn.Depending, of course, on how quickly your fellow passengers board. I've had Central on my case before asking if I'm having any problems with my train because I'm behind schedule, and I'll respond, "Yes, tell these people to board more quickly."

i'm not sure it saves any time whatsoever even with rush hour traffic, and absolutely not on weekends