The roads to rome is indeed not open source although the tools are: http://roadstorome.moovellab.com/about http://roadstorome.moovellab.com/about I was also pl

The roads to rome is indeed not open source although the tools are: http://roadstorome.moovellab.com/about http://roadstorome.moovellab.com/about I was also playing around with this and GraphHopper as well: https://graphhopper.com/blog/2016/01/19/alternative-roads-to-rome/ https://graphhopper.com/blog/2016/01/19/alternative-roads-to... Using some simple modification of the MiniUIGraph tool which you can find here: https://gist.github.com/karussell/768e828a01f71ac7f46c https://gist.github.com/karussell/768e828a01f71ac7f46c BTW: If you have questions related to GraphHopper feel free to ask them :) BTW2: Funny how this visualization side-project got more stars in a few hours then one of the used routing engines in 4 years. Bad marketing ;) ?