Expo Line reduces carbon emissions. What would free buses do?

An Expo Line train pulls into the La Cienega/Jefferson station. (Los Angeles Times / December 16, 2013)

Expo Line proves a point: If you build it, people will ride - latimes.com: "The study tracked roughly 200 households before and after the opening of the Expo Line’s first phase, from downtown to Culver City, in 2012. Researchers found that people living within half a mile of the Expo Line tripled their use of rail after the opening. They also drove about 10 miles less per day after the transit line opened, compared with households in similar neighborhoods farther from the line. And because the Expo-adjacent residents drove less, they generated about 30% less carbon emissions.

These are compelling numbers showing that the Expo Line helped people change their habits, leading to fewer cars on the road and less air pollution."