Why Should the Uphill Vehicle Go First When Passing on Narrow Mountain Roads?

1 Answers
VanDaniella
07/30/25 7:49am
Because the uphill vehicle needs to overcome the slope resistance, it must accelerate the throttle to make the engine generate more power and traction. Generally, it needs to complete the climbing process in one go. If it slows down or stops midway, it will increase the difficulty and may even cause the vehicle to roll backward, leading to an accident. The following are the correct methods for passing on narrow slopes: 1. Downhill vehicles yield to uphill vehicles: On roads without central isolation facilities or central lines, when motor vehicles come from opposite directions, they should comply with the following regulations: slow down, keep to the right, and maintain a necessary safe distance from other vehicles and pedestrians; on obstructed road sections, the unobstructed side goes first. When the downhill vehicle has already reached the middle while the uphill vehicle has not started climbing, the downhill vehicle goes first. 2. The side not against the mountain goes first: On narrow mountain roads, the side not against the mountain goes first. When passing non-motorized vehicles on narrow roads or bridges, low-beam lights should be used. Motor vehicles must not make U-turns at places with no left-turn signs or markings, or at railway crossings, pedestrian crossings, bridges, sharp turns, steep slopes, tunnels, or dangerous sections.
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