Have you heard that trains are “in” again? They have been “out” for so long, it’s almost hard to believe it, but President-elect Barack Obama’s decision to ride the rail into Washington for his inauguration has excited many train lovers.

Since flying became the main form of long-distance transportation in the United States in the past couple of decades, repeated warnings by railroad executives and industry advocates that insufficient funding and out-of-date equipment would lead to the system’s collapse seemed to fall on deaf ears. Finally this fall, Congress more than doubled funding for Amtrak, the semi-public company, in a $13 billion railroad improvement bill sponsored by Reps. James L. Oberstar, Minnesota Democrat, and John L. Mica, Florida Republican…