December 17, 2013, 11am PST
Austin has a giant traffic tangle on its hands. And because the city largely ignored the growing problem for years, transportation planning experts believe only drastic changes in behavior and lifestyle will ease the snarl.
August 14, 2013, 12pm PDT
The construction of Riyadh's Metro has ambitious goals to relieve gridlock and reduce obesity. Perhaps more importantly, it aims to grant women the freedom of mobility. “That's a lot to expect from a public transport system,” writes Susanne Koelbl.