What is the speed limit for cars on first-class roads?

1 Answers
SanVictoria
07/29/25 1:07pm
First-class roads have a speed limit of 60-100km/h for cars. Below are detailed explanations about vehicle speed: 1. Overview: Vehicle speed refers to the distance a car travels per unit of time, commonly measured in kilometers per hour or meters per second. It is one of the three key parameters in traffic flow theory and holds significant importance in traffic flow studies. 2. Others: Vehicle speed can also broadly refer to motor vehicle speed. Depending on different purposes, vehicle speeds are mainly categorized into spot speed, section speed, and design speed. Spot speed is the instantaneous speed of a vehicle passing a specific point on the road. Design speed is the speed set to determine design indicators for various geometric elements of the road and ensure their coordination.
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