What is the purpose of a high-speed U-shaped opening?

[DeEllie]

The function of a high-speed U-shaped opening is to allow vehicles to enter the highway from the same station, make a U-turn in the middle, and then exit from the same station. Below are specific details about U-shaped driving: 1. Definition: U-shaped tolling is a special toll policy introduced to prevent vehicles from maliciously evading tolls, as highway networks continue to develop with multiple paths and increasing complexity. 2. Toll Calculation: For U-shaped driving vehicles, the highway toll is calculated based on the shortest round-trip distance, using the lowest toll rate in the network as the benchmark. All U-shaped driving vehicles are charged the minimum toll.