Can a Vehicle on the Main Road Make a U-turn onto the Auxiliary Road?
1 Answers
Vehicles on the main road can make a U-turn onto the auxiliary road. The rule that vehicles on the auxiliary road must yield to those on the main road is based on the principle that the main road serves as the trunk line while the auxiliary road functions as the branch line, where branch traffic yields to trunk traffic. Generally, main roads have more lanes and higher speed limits, hence auxiliary road vehicles must give way to main road traffic. The differences between main and auxiliary roads are as follows: Main roads are exclusively for motor vehicles, whereas auxiliary roads accommodate mixed traffic of motor vehicles, non-motorized vehicles, and pedestrians. Key distinctions include: 1. Function: When main road traffic volume is excessive, auxiliary roads help alleviate congestion by diverting some vehicles. 2. Specifications: For unidirectional motor vehicle lanes physically separated from bicycle lanes, the minimum width should be 7.5m; when separated by markings, auxiliary roads should be no narrower than 8.5m; for high traffic volumes of both vehicle types, auxiliary road widths may range 12-13m. 3. Configuration: In urban ground-level expressways, auxiliary roads should run continuously on one or both sides of the main road; for elevated expressways, they're situated at ground level beneath the structure. Suburban expressway auxiliary roads may be continuous or intermittent.
