How does it work?

PDX Viz takes data about homes, grocers, and public schools from Portland Map's Open Data and connects it to trip times found with OpenTripPlanner. When necessary the times are approximated with natural neighbor interpolation. All this data is loaded into your browser with Papa Parse, and finally it's plotted with the very nice MapBox GL.

Caveats

The trip times don't take into account traffic. This is a big deal for public transit routes that rely on the bus. So the PDX Viz maps will be a bit (or a lot) optimistic.

Also, the trip data was collected in August 2016. If TriMet has more recent route changes (or perhaps a fancy new bike share system), they won't be reflected here.