Actually the back of the train; this one was heading north from San Diego, and not going slowly through the crossing either. It is odd that the train’s designers spent time making it at least somewhat aerodynamic, and then its operator chooses to drive it backwards!
Oh, and in case you were wondering whether there was an engine on the other end too, look at the photo of the same train approaching.
that americans haven’t a clue how to do trains is apparent in these photos. however, in fairness, they run the train the other way when it’s heading south to san diego … having ridden one of these trains from emeryville to sacramento, they’re actually pretty nice and comfortable. not as good as japanese trains but not as bad as they could be.