App to crowdsource best routes for cyclists
Could include data about crashes and crowdsourced alerts For example: http://apps.sfgov.org/showcase/apps/cycletracks/
This did get built this weekend and won 2nd place, so we'll be helping with some improvements and bringing it to scale. MapMyRide and Strava were both brought up, but this added the idea of allowing users to actually rate their ride based on some factors, also mashed up with crash point data and stolen bike data near bike racks. Pretty cool stuff for one weekend. You can see the results of weekend at http://codeforcommunities.wikispaces.com
tom charkut commented
I would check out mapmyride or strava too for route data created by cyclists. perhaps mash with other DRCOG info.