My own quad tree, they're not that hard to write :) We're not considering openin...

		paulmach on May 3, 2014 \| parent \| context \| favorite \| on: Global heatmap of cycling and running routes My own quad tree, they're not that hard to write :) We're not considering opening the data. But we are working with cities to help improve their bike infrastructure http://bikeportland.org/2014/05/01/odot-embarks-on-big-data-...