National
As urban life resumes, can US cities avert gridlock?
It’s back: Rush-hour traffic in Los Angeles on June 15, 2021. Carolyn Cole / Los Angeles Times via Getty Images John Rennie Short, University of Maryland, Baltimore County Traffic is so ubiquitous in U.S. cities that until recently, imagining urban life without it meant looking to other nations for examples. Then, in 2020, COVID-19 closures