How long does it take to walk or take public transit to the nearest public school throughout the city? How has that changed, city-wide, after the recent public school closings?

Let's build an interactive map that visualizes travel time to the closest public school — with options to show the map with the data from before the closing, after the closing, or allow the user to build their own map by interactively closing or opening existing schools.

This will both demonstrate how open data can be used to generate a basic "accessibility" analysis and demonstrate one of the uses of the new public GeoTrellis Transit API ( For the data side, we'll need to either extend the API (in Scala) or implement the analysis in JavaScript. For the front end, we'll need to put together an interactive web page (JavaScript).

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