What do you get when you plot onto a single map every known light rail, streetcar, and BRT plan in the DC region? One heck of a huge transit network, is what.

Every planned light rail, streetcar, and BRT line in the DC region. Click the map to open a zoom-able interactive version. Map by the author, using Google basemap.

This map combines the DC streetcar and MoveDC bus lane plan with the Arlington streetcar plan, the Alexandria transitway plan, Montgomery’s BRT plan, and Fairfax’s transit network plan, plus the Purple Line, the Corridor Cities Transitway, the Long Bridge study, the Wilson Bridge transit corridor, and finally the Southern Maryland transit corridor.

Add the route mileage from all of them up and you get 267 miles of proposed awesomeness, not including the Silver Line or other possible Metrorail expansions.

To be sure, it will be decades before all of this is open to passengers, if ever.

The H Street Streetcar will be the first to open this year, god willing, with others like the Purple Line and Columbia Pike Streetcar hopefully coming before the end of the decade. But many of these are barely glimpses in planners’ eyes, vague lines on maps, years or decades away from even serious engineering, much less actual operation.

For example, Maryland planners have been talking about light rail extending south into Charles County since at least the late 1990s, but it’s no higher than 4th down on the state’s priority list for new transit, after the Purple Line, Corridor Cities Transitway, and Baltimore Red Line. Never mind how Montgomery’s expansive BRT network fits in.

Meanwhile in Virginia, the Gallows Road route seems to be a brand new idea. There’s yet to be even a feasibility study for it.

Even if governments in the DC region spend the next few decades building this network, there are sure to be changes between now and the day it’s all in place. Metro’s original planners didn’t know Tysons would become the behemoth it is, and contemporary planners can’t predict the future with 100% accuracy either.

Last year the Coalition for Smarter Growth published a report documenting every known route at that time, and already a lot has changed. More is sure to change over time.

Holes in the network

With a handful of exceptions these plans mostly come from individual jurisdictions. DC plans its streetcars, Montgomery County plans its BRT, and so on.

That kind of bottom-up planning is a great way to make sure land use and transit work together, but the downside is insular plans that leave gaps in the overall network.

Ideally there ought to be at least one connection between Fairfax and Montgomery, and Prince George’s ought to be as dense with lines as its neighbors.

But still, 267 miles is an awfully impressive network. Now let’s build it.

Cross-posted at BeyondDC.