Science Why Some Cities Are Better Than Others At Avoiding Gridlock 7:29am December 21, 2017 by Christopher Joyce Research News Science Share URL copied to clipboard! Play Pause There was an error loading the media player. Copyright 2017 NPR. To see more, visit http://www.npr.org/. 300x250 Ad More Morning Edition National The man who helped roll back abortion rights now wants to 'crush liberal dominance' Health & Safety National Arts Tips from a top chef to beat holiday cooking stress 300x250 Ad Support quality journalism, like the story above, with your gift right now. Donate