What is the distance between cars on the highway?

[LeAddyson]

On the highway, the distance between cars should be maintained at 100 meters. Here is an introduction about highways: 1. Introduction: Highways are classified as high-grade roads, abbreviated as expressways. According to the "Technical Standards for Highway Engineering" by the Chinese Ministry of Transport, highways are defined as "roads that can accommodate an average daily traffic volume of more than 25,000 small passenger cars, are exclusively for high-speed driving with separate lanes, and have full access control." 2. Background: Some Western countries began constructing highways in the 1930s, and since the 1960s, highways have developed rapidly worldwide. Highways are an inevitable product of economic development. 3. Others: In addition, many countries also refer to direct trunk roads with partial access control and not entirely using grade separations as highways.