L.A. has made substantial progress toward curbing emissions in the transportation sector by regulating dirty trucks, alleviating traffic, supporting electric vehicles, and investing heavily in tomorrow's public transit. In doing so, L.A. has earned its place as an international environmental leader-now it needs to leverage insights from around the world to complete its transportation overhaul.

Say the words “Los Angeles,” and you might conjure visions of epic traffic jams and a city that seems designed to intimidate and marginalize pedestrians and bicyclists. But a new reality is emerging in the city of angels. A slew of developments over the past decade is helping the world capital of car culture transform itself into a world leader in sustainable transportation.