SnapDragon just launched 21 traffic and transit Twitter feeds for 511 New York.

511 New York is a new telephone and Web service that provides dynamic traffic, transit, and weather condition information.  You just call “511” (the call is free) or go to the Web site www.511NY.org to get updates. The system is available 24 hours a day, seven days a week.

Twitter feeds are part of the new service.

Twelve of the 511 NY Twitter feeds cover individual regions and 9 feeds cover NYC subway lines.

You can access these individual feeds at http://twitter.511ny.org