Sure people have the option to control their own speed, and authorities can police speeders. The accident rate we have already accounts for that. Speeders are still dying, and they’re taking out more non-speeders with them than the total number of public transit deaths, by multiples.

Still not sure what the argument even here is. You’re being pretty forceful about one single, weird incident. Fine, but the fact of the matter is that driving in cars is causing a lot more injury and death than public transit, by several orders of magnitude.