<http://schema.org/about>
"Sometimes the smartest way to improve transit is not to plow millions into more stations, more buses, more trains, etc (though we're certainly not against that!), but to simply change how things are done in the existing system."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/public-transportation/should-buses-subway-be-free-ride.html>