After the truck first felt the traffic jam on Friday, it will take various mitigation measures. As everyone knows, some measures are somewhat effective, but most of them have aggravated congestion. For example, adjust the green light time of an intersection to make it longer from north to south.

Secondly, people are worried about congestion, so they travel earlier on Friday, which leads to a rapid increase in traffic and a longer time spent on the road, forming a vicious circle. In addition, there may be traffic jams at ordinary times, but "there will be traffic jams every Friday"