Adam December 5th, 2012
Update November, 2016: New dedicated Curvature site — roadcurvature.com
Update October, 2013: Google Earth KML files generated by curvature.py are now available covering the entire world.
In the process of taking up motorcycling this summer I also gained an additional hobby: scouring maps and travel guides to find the roads that would be most fun to ride. While I’ve had great times on dirt roads through farmland and wide open highways, there just isn’t anything that compares to the thrill of leaning through the corners on a winding road.
While I’ve had some good successes in locating roads by map (such as Tracy Road), one of the shortcomings of a map is the tight curves you can really lean into tend to be below the resolution for many maps. Atlases and electronic maps like Google Earth allow you to zoom in, but then there is the problem of finding the gems in the sea of data. What I realized I needed was a way to highlight just the most curvy roads so that I would know where to explore next.
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