In town here we have a road that has a triple set of tracks across it, it's close to the trainyard. I have mindfully crossed them many times with no problems. We also have a lot of cattleguards and I have had no issues with those - I go fast and straight at them. It does not rain too much here, so the tracks and cg are usually dry.
A few years ago when Ride the Rockies rode from Grand Junction to Delta, over the Grand Mesa (Pedal Wench will remember that day!) there was a nasty set of tracks to cross over in Delta. The rails were set deeply into grooves and the edges of the grooves were a sharp steel edge. I went through carefully, noticing that 3 people were changing flats right then. I kept on. Later I noticed that my rear tire was damaged by those sharp edges. The day before, RTR Day 1, over the Colorado National Monument, many people got caught in rain. A friend of mine did go down on wet railroad tracks riding back into town.
I rode Bicycle Tour of Colorado the next week. Some of the routes went over historic narrow gauge railroad tracks, some rails were at a very acute angle to the roadway. They had people there telling riders to slow down, but there were still falls and a few people hooking wheels in the trackway. I got off my bike and walked across a few of those!
Specialized Ruby
Gunnar Sport
Salsa Vaya Ti
Novara Randonee x2
Motobecane Fantom CXX (Surly Crosscheck)
Jamis Dragon