Major collision on Boston metro

The train operator was killed with numerous passenger injuries. The Boston trains were really trams running on a reserved right of way.

Also, yesterday, there was a derailment on the Chicago El. It llooks like a train split a switch at a junction. There were passenger injuires there, but the train damage looks fairly limited. The El is heavy rail rapid transit with very short carraiges to accomodate very tight curves. It has had serious maintenance problems for several years. (Sound familiar?)