[twblalock]

> One of the nice things about trains is that they're more regular and predictable than many other forms of mass transit. The large, fixed infrastructure investment discourages too much disruptive change once it's built.

Plus they don't get stuck in car traffic like buses do.

[bluGill]

There is no reason any of those objections need to be true. They typically are, but you can make a train even worse than a bus.

[erik_seaberg]

Caltrain has a lot of trouble because people are constantly driving or walking onto the tracks. BART is either subway or elevated or fenced off between stations.