Metro officials are eyeing a Brown Line to join the system's existing palette.In general, I'd support lines that get people into & out of DC's center (serving both transportation needs and security purposes) over loop lines. In particular, a new midcity Blue Line could fill in major Metro gaps in places like Georgetown & Thomas Circle.
The transit agency is planning for the future, looking at creating a train line that dips from Friendship Heights into the District and back up to Silver Spring and past White Oak. It's also studying a line along the Capital Beltway loop, diverting the Blue Line from its current route across downtown to create a midcity rail line, or running an offshoot from the Green Line to National Harbor.
None of the plans is funded or even firm. Engineering hasn't been done and land hasn't been set aside. But the transit agency is studying what it will need by 2040 to accommodate growth in the region and relieve pressure on the system.
Officials plan to discuss some possibilities with regional leaders Wednesday, then hold workshops in July to hear riders' thoughts. By next spring, Metro hopes to have a final plan identifying which projects it will consider developing.
So what would you like to see after the Silver Line is completed? Maybe a Gold Line down Route 7 as GreaterGreaterWashington.org's Steve Offutt has suggested? There's also the long-discussed Columbia Pike streetcar project.