The BusGraphs Project

In 2015, I became fascinated by King County Metro’s efforts to restructure its bus network in anticipation of the opening of two new Link Light Rail stops. At the same time, I found out about isochrone maps and the larger idea of access in transit. While I was creating software to measure the latter, the former served as a motivator and test case. I hoped that I’d be able to evaluate Metro’s proposed alternatives, come up with some on my own, and present objective measurements of which was best. As Metro’s plans proceeded through a series of revisions, I followed along through the outreach materials that they produced. The process never felt very scientific, and that frustrated me, but I dreamed of a day where tools like the one I was building would make that so.

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“What if we planned public transit with the goal of freedom?” asks public transportation consultant Jarrett Walker in a blog post from this March. A little over five years ago, a presentation that he gave planted this question in my mind. Having a background in software, and unaware of anyone else who was thinking about this question¹, I started creating the tools that I would need to measure the freedom conferred by public transit systems. Within a year, I had sold my car and quit my job to focus full time on transit. I envisioned myself as establishing my own consultancy that would guide transit agencies through network redesigns using my software for generating measurements of transit network quality.

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