Here’s a project that my friend Dan Greenblatt has been working on. DIYtraffic is a free community based traffic alert system. Traffic updates via mobile phones have been around a while, but some of the cost money and there hasn’t been any unified platform.
DIYtraffic is an easy-to-configure application that alerts you to traffic problems in a local area as they occur. The app, which is set up to pull from Yahoo’s traffic API and send to Twitter (but can be configured to pull/push from/to any service), will send SMS messages to your phone about traffic jams from accidents, street closures, etc, for the city you configure it for.
Here’s the twitter feed for Chicago. http://twitter.com/traffic_chicago
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