Each day this week while I’m in Seattle for Railvolution there will be a brief post about some cool transportation-related thing in that city.

Seattle is home to America’s 2nd largest trolley bus network. Trolley buses are buses on wheels powered by overhead wire instead of diesel fuel or battery. They’re quieter and smoother than normal buses, but more expensive, and some people don’t like the overhead wires.

I’m a big fan of these, and would like to see them in more cities. While still a step down from streetcars, trolley bus wires offer some of the same sense of permanence as rail. They’re a sign a bus line isn’t likely to change.

Seattle trolley bus.

Tomorrow: A very complete street.

 Cross-posted at Greater Greater Washington.