Light rail for Cambridge

A modest proposal for the next phase of transit expansion in and around Cambridge…

(scroll down for interactive map)

  • Streetcar light rail lines
    • Major corridors, largely replacing major bus lines, and feeding T stations
    • Frequent stops
    • Supplants inbound vehicle trips from the western towns to/through Cambridge, while providing hyper-local light transit
  • Grand Junction light rail loop
    • One-seat routes from West Station to North Station, and West Station to the Airport
    • Stops in Cambridgeport, Kendall Square, Sullivan Square, Assembly Square, Everett, and Chelsea
  • Red Line Extension to Arlington/Lexington
    • Route 2 median branch/supplemental commuter line?
    • Reduces demand for vehicle travel on Mass. Ave./western Parkways

The light rail lines could have very frequent stops and service, and be in-street.

The Red Line extension, Orange Line extension, and restoration of the Green Line “A” Line would of course be major undertakings. For the Red Line, using the Route 2 corridor seems slightly easier, though it’s questionable whether it would have a significant level of service without being some kind of new development corridor. The commuter rail-style alternative (or something else) for that corridor would recognize the lower level of service while still providing service to the residents and businesses there, and into Alewife – with the idea of reducing SOV use on Route 2.

The Red Line extension proper (Arlington-Lexington) would be a state-level project serving multiple municipalities. It has been talked about for decades, and was initially intended to be part of the Red Line extension from Harvard northward, but was met with fervent opposition at the time in Arlington. Surely, Arlington of today would be of the opposite attitude…?

While this is largely limited to lines that would run through or terminate in Cambridge, almost any town you go to in any direction, streetcar lines would bring a lot of social and economic value, and in many cases, could go where streetcars historically went.

This would be a rather radical revisioning of all these corridors. The idea is that it could be a mix of dedicated corridor and Euro-style (or, more aptly, Green Line E-line style) with cars and trains mixing — tracks in the street. Either way, a significant replacement of driving and parking space would be necessary.

Streetcars historically served American towns large and small. Much is different, but I don’t think I’m trying to reinvent any wheels.

I’m not an engineer and of course there are many unstated details and obstacles, better route alternatives, the necessity of priorities, etc. — however, I believe we should be working backwards from an extensive, interconnected, complete transit network.

We should be thinking big and ending up somewhere in between here and there.

Light rail for Cambridge