MC is oh so right – keep the water out of the track and ballast section, and most of your problems are history (well… there are such things as shelly rail and so on…). Something the guys who design the railroads are well aware of, and usually go to great lengths to accomplish (not always, before someone jumps on me!, and not always successfully!)(and you have to keep that ballast clean, something which annoys the operating department and the bean counters). Also something that highway engineers don’t seem to have figured out, even yet…
That was one of our funnier subjects!
Thanx for the trip down memory lane!