Why Should Vehicles on the Main Road Yield to Those on the Auxiliary Road?

[DeGabrielle]

Due to high traffic volume, the main road serves as the trunk line while the auxiliary road functions as the branch line. Vehicles on the branch line should yield to those on the trunk line. Generally, main roads have more lanes and higher speed limits, so vehicles on auxiliary roads must yield to those on the main road. Below are relevant details: 1. Auxiliary roads in urban expressways should be located on one or both sides of the main road. For elevated roads, auxiliary roads should be set at ground level beneath the elevated structure. In urban areas, auxiliary roads should be continuously arranged, while in suburban expressways, they can be continuous or intermittent. 2. Auxiliary roads on both sides of the main road should adopt one-way traffic, whereas those on a single side may allow two-way traffic. 3. Elevated roads and ground-level roads should be connected via on-ramps and off-ramps.