Greater Greater Washington has an article up on why we should add rapid transit bus lanes.

WMATA believes that the future of Greater Washington’s transportation rests on priority bus corridors throughout the region, like the MetroExtra (#79) bus from Silver Spring to downtown DC. With Metrorail running out of capacity by 2030 and serious core expansion costing billions, Metro sees rapid buses as the best chance for a real capacity boost.

This has been adopted in many countries include the UK where I grew up, and if the DC area can move away from a car focused transport policy, then rapid bus lanes might actually become a reality.