Streetcars (and rapid bus) in DC

The Post's Dr. Gridlock column yesterday features a gargantuan map of the proposed streetcar and rapid bus system in DC.

One additional rapid bus route I would consider would be for 14th Street NW (the 50s buses).

Also, I see the rapid bus proposed for Rhode Island Avenue. This bus route could be extended west to Dupont Circle, and east from the DC line up to College Park/University of Maryland. Of course, I think this could be a streetcar line. I suggested it during the streetcar studies a few years ago, and separately in the late 1990s, the Maryland Transit Administration studied this for the part of Rhode Island Avenue in Maryland.