Old jeans pile up in closets everywhere, too worn to wear but too sturdy to throw away. Instead of tossing them, people are transforming denim into stylish home goods, fashion pieces, and practical ...

This complete model of pedestrian activity is replicable in any U.S. city, and it has huge potential benefits for city planners.

You spot new orange-and-white lane stripes and wonder if they actually change how people drive. […] ...