


Nearly Half a Mile of Tracks West of Vienna...Under Used?
It occurred to me driving past them the other day that the the tracks at the end of the line at Vienna go quite far past the end of the station, 0.4 miles to be exact, or just over 2,000 feet. 8-car trains on WMATA are 600 feet long, meaning you have 6 trains worth of storage on those two tracks. I understand these "stubs" are often build to make future expansion easier and not disruptive to existing service. But it seems like they could be better utilized now.
My biggest question is why there isn't a switch on that side of the station. Even if you only wanted to store one train on each track, you'd have plenty of room for a switch. Currently, trains always have to slow down approaching Vienna, and half make the switch then to the other side, half go straight in and then make the switch when departing the station. Instead, if you had a switch after Vienna, you could more ore less operate the station like a loop where all trains enter straight into Vienna at a normal full speed prior to stopping. Unload passengers, then proceed west, make the switch back behind the station, and then one the next train has departed, pull into the eastbound track in the station. No need to jockey trains entering Vienna. No more holding between Vienna and Dunn Lorring waiting for a train to depart before you can pull in. I recall from riding MARTA in Atlanta that they often operate this way at some of their end stations (Hamilton E Homes for example). Seems like a fairly small investment could provide some improvement to Orange Line service and B/O/S timing and reliability heading into East Falls Church and ultimately Rosslyn (the two merge points).
So ultimately, my question is are these tracks ever utilized? Are they ever used for storage? Could WMATA operations benefit from a small capital project adding a switch west of Vienna? Has anyone ever seen a train on the tracks west of Vienna?