"Arlington, like communities around the country, once had a network of streetcars. Today such transit lines are making a comeback in many jurisdictions. Locally, similar projects are also being planned, including a streetcar line in Anacostia and a possible line between Crystal City and Potomac Yard" (emphasis added).
Further says the report:
"(Arlington County and Metro board member Chris) Zimmerman hopes the (Columbia Pike) line can be the first piece of a network of surface rail that would include a link to Potomac Yard and Crystal City."See the Pike Transit Initiative for more.