What should you do when you see flashing green lights at a railway crossing?

Flashing green lights at a railway crossing do not exist according to standard traffic signals for crossings. Typically, railway crossings use red lights to indicate that a train is approaching and that it is not safe to cross. Therefore, the statement that there are no flashing green lights at a railway crossing is indeed accurate.

In other contexts, a green light generally signals that it is safe to proceed, but this does not apply at railway crossings, where safety is paramount. Understanding that flashing signals, when they are used, have specific meanings is essential for making safe decisions when approaching a railway. This reinforces the importance of being familiar with standard traffic and railway signals to ensure safety on the roads.