Gov. O’Malley has made his decision on the Purple Line: it’ll be light rail, as has been increasingly clear over the last couple of months. TheCityFix has been an advocate for high-quality bus rapid transit in the past, but let’s be clear: this is great news for transit advocates. A circumferential rapid transit line will be a major improvement in the regional transportation network. Insofar as the World Resources Institute analysis did find that light rail would emit more greenhouse gases than buses, let this just be an impetus to clean up our region’s very dirty power grid.

Now let’s get this thing built.