A new report from Transportation for America finds that to meet the transit standards set by the rest of the world, the U.S. would need to nearly triple the number of transit vehicles in service, and the amount that we’d need to spend to operate them. At current costs, realizing that vision could take a total investment of $4.6 trillion over a twenty-year timeline. That sounds costly, but the U.S. is projected to spend an additional $6.3 trillion on highways in that time, and since 1956, we have spent 3.4 times more on highways than transit.