Final answer:
It is best to go across railroad tracks at a 90-degree angle to reduce the risk of accidents.
Step-by-step explanation:
When approaching railroad tracks that come through the road at a diagonal, it is best to go across them at a 90-degree angle (turning your bike to be perpendicular with the tracks). This is because going across at a 45-degree angle (straight through your lane) can increase the risk of your bike getting caught in the tracks and causing an accident.
By crossing at a 90-degree angle, you reduce the chances of your bike's tires getting stuck in the grooves between the tracks and potentially losing control. It is important to approach the tracks at a slow and controlled speed to ensure a safe crossing.