Public transportation has a lousy, very lousy safety record. As a matter of fact, I think it's safer for me to drive my car. Because it's the only place in America I can think of where maybe it would be more safe to drive your automobile than it would be to ride public transit. Actually, driving on almost any urban freeway is safer than transit. So while it is sometimes safer to ride transit than to drive, it is more dangerous to walk to the transit stations.
Buses are somewhere between freeways and light rail.
This is a huge exaggeration. According to University of California researcher Mark Delucci, who is a transit advocate, not a highway advocate, total subsidies to the automobile, including the social costs of air pollution, noise, etc., are just 5 to 7 cents per vehicle mile. Delucci warns that applying full-cost pricing to both autos and transit is likely to shift users from transit to cars because transit subsidies are far greater than auto subsidies. Delucci also notes that charging for social costs at the gasoline pump is not an effective policy. Instead, we should charge people to pollute.