What does the white number 80 marking on the ground mean?

[DiKyle]

White number 80 markings on the ground generally appear on highways, indicating a minimum speed of 80 kilometers per hour. Below is relevant information about highways: 1. Overview: The average speed on highways is above 80 km/h, with a maximum speed of up to 120 km/h, which is 60% to 70% higher than that on ordinary roads. Highways have multiple lanes, wide road surfaces, and high traffic capacity, enabling them to handle several times or even dozens of times more transportation volume than ordinary roads. The well-developed road facilities on highways reduce fuel and tire consumption, vehicle wear, cargo damage, and accident compensation losses per unit of transportation, thereby significantly lowering transportation costs. 2. Role: The high efficiency of highways has driven changes in road transport organization methods, encouraging the automotive manufacturing industry to develop vehicles with higher axle loads, larger sizes, higher speeds, specialized models, and container transport vehicles.