Always a good idea to know where the tracks are on your route!
Last year I had a set of tracks I crossed twice a day.... once I was fiddling around with stuff on my bike and neglected to prepare properly while riding in the snow... Tire caught the tracks and went sideways... I realized where I was just moments before the tire hit... had just enough time to prepare and execute a flawless flying dismount. In front of a bus (at the cross street)... luckily the bus driver was already stopped at a stop sign. I landed the dismount perfectly, and threw my hands up in the air like I'd just earned a perfect '10' score at the Olympics.
The look on the drivers face was priceless!