Why Does Traffic Jam Occur on Highways Without Accidents?

[DiMatthew]

Reasons for traffic jams on highways without accidents: Poor driving habits of drivers, slow driving on highways. Poor driving habits of drivers: On highways with heavy traffic, if a driver suddenly changes lanes or cuts in, it will cause the cars behind to brake and slow down one after another, leading to a major traffic jam. It is reported that during heavy traffic, a car traveling at 40km/h that suddenly brakes can affect 10-20 cars in succession, with the affected distance extending up to 400-500 meters. Slow driving on highways: On sections with heavy traffic, slow vehicles occupying the fast lane prevent faster cars from overtaking. When a slow vehicle is in one lane, faster cars in that lane need to merge into adjacent lanes, which also easily causes congestion. The second reason is excessive traffic volume at highway toll stations.