>>13523097traffic jams happen necessarily if there's too many people because not everyone is traveling at the same exact speed. this means that if you are behind a car, going slightly faster than them, you are going to slow down to a speed less than their speed, which is going to cause the cars behind you to do the same, with a cascading effect down the entire length of the highway.
if there were some way for a vehicle to perfectly match the speed of the car in front, then a general traffic jam would be solved
