تعريف ومعنى "grade crossing"

What is a "grade crossing"?

A grade crossing is a place where a road and a railway track cross at the same level, without a bridge or tunnel separating them. Vehicles and pedestrians must stop or let the train pass when it is coming. These crossings often have warning signs, flashing lights, or gates to improve safety and prevent accidents. Grade crossings are commonly found in cities, towns, and rural areas where roads and train tracks meet.