What is a lane with spikes?

[SanLorenzo]

A lane with spikes is called a tidal lane, also known as a variable lane. Here is the relevant introduction to this lane: 1. Purpose of setting: The purpose of setting is to solve the problem of vehicle flow at intersections where tidal phenomena are more serious. At an intersection, the straight-through traffic flow is relatively large during the morning peak, while the left-turn traffic flow is relatively large during the evening peak. This difference in traffic flow between morning and evening peaks is called the tidal phenomenon. This lane can change the direction of travel according to the change in traffic flow, thereby improving traffic efficiency and alleviating traffic congestion. 2. Precautions: When encountering such a lane, be sure to pay attention to the signs or traffic lights to determine the direction of travel. If you enter this lane without determining the direction of travel, you may violate traffic rules.