December 26, 2012, 5am PST
Comparing wide versus narrow lanes, Kenneth A. Small and Chen Feng Ng examine the relatively unexplored design of building more compact roads to alleviate traffic congestion.
July 15, 2011, 10am PDT
The weekend closure of the 405 freeway in L.A. highlights the city's limited mobility but also the skewed way transit and transportation projects are debated.