[userbinator]

At the same time, trains are vastly safer than personal cars.

Most likely because trains essentially only travel in one dimension almost all the time, along a very well-defined path.

[revelation]

That's the point. For their base (and empirical) level of risk, there are huge binders of safety regulations for trains. Yet cars, which pose a vastly higher risk, are basically unregulated and safety is commonly ignored for what are peripheral concerns.