Why Should the Main Road Have Priority?
1 Answers
It is because of the high traffic volume that a road becomes the main road. The main road serves as the trunk line, while the auxiliary road serves as the branch line. Vehicles on the branch line should yield to those on the trunk line. Generally, the main road has more lanes and higher speed limits, so vehicles on the auxiliary road must yield to those on the main road. When traffic on the main road is too heavy and the pressure is too high, some vehicles can temporarily use the auxiliary road to alleviate the traffic pressure on the main road. Interchange overpass. Additional content, auxiliary road setup standards: 1. Auxiliary roads should be set on both sides or one side of the main road for ground-level expressways, and on the surface layer under elevated roads for elevated expressways. In urban areas, auxiliary roads should be set continuously. For expressway auxiliary roads in suburban areas, they can be set continuously or intermittently. 2. One-way or two-way auxiliary roads: Auxiliary roads set on both sides of the main road should adopt one-way traffic, while those set on one side of the main road can adopt two-way traffic. 3. Elevated roads and ground-level roads: Elevated roads and ground-level roads should be connected via on and off ramps. 4. Motor vehicle and non-motor vehicle lanes: For the cross-section layout of auxiliary roads on ground-level expressways, motor vehicle and non-motor vehicle lanes should be physically separated or marked with dividing lines. When motor vehicle and non-motor vehicle lanes are physically separated in one direction, the width of the motor vehicle lane should not be less than 7.5m; when motor vehicle and non-motor vehicle lanes are separated by markings in one direction, the width of the auxiliary road should not be less than 8.5m; when traffic volumes for both motor vehicles and non-motor vehicles are high, the width of the auxiliary road can be 12~13m.
