<http://schema.org/about>
"Portland, disputedly still American's premier cycling city, has been experimenting with 14 bike boxes - road markings that designate exactly where cyclists and motorists should place their vehicles when"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/bikes/green-box-biking-and-safety-its-all-in-our-heads.html>