I have a slightly interesting story about learning to fall from a bike.
When I was about 7 y/o, my dad decided to teach me to ride. Naturally, he bought me a junior ten-speed that was so big that I couldn’t straddle the top tube, even on tip-toes. This was back when kids got one pair of new sneakers a year, bought oversized so that our feet would still sort of fit at the end of the year. He walked me and my over-large bike up a winding asphalt path to the top of a grassy hill in a local park, where he turned the bike to face downhill, placed me on the saddle, and instructed me to follow the path until it was about to end, then steer onto the grass and JUMP OFF. Then he pushed the bike down the path and I went with it. That afternoon, parkgoers got to see a small boy flying down the path – my dad hadn’t bothered to point out what the brake levers did – then veering off and finally bike and boy tumbling to a stop in a cloud of grass and dirt. Over and over. By the end of the day I knew how to fall. Eventually I learned to ride as well.
I don’t recommend this technique of child-rearing. But I never have been injured, beyond a little blood and bruising, in crashes whether from bikes, skateboards, skis, or snowboards, so I suppose he knew what he was doing.
Anyway, you will probably never fall on this bit of track again. All the advice given – cross at right angle, not leaned over, off the saddle, with some speed – is sound. Be especially cautious if the tracks are damp. I can’t speak to the utility of trackstanding, but why not.
In Portland we have some streetcar tracks, and riders who are inattentive or ill-trained go crashing down frequently. There are a lot of complaints about it. Other riders don’t crash and don't complain. You’ll be one of the latter.