Ordinary single opening.
According to the classification of switches, the switches at both ends of the crossover line belong to ordinary single switches. A crossover switch is a type of switch used to connect two parallel railway tracks, allowing trains traveling on one route to change tracks to another route. Turnouts are a large family, and the most common ones are ordinary single-turn switches. It is mainly composed of three units: switches, connecting parts, frogs and guard rails.
A crossover, also known as a crossover, transition line, or switch section, refers to a switch used to connect two parallel rails so that trains traveling on a certain route can change tracks to Another route.