Why do cars have speed limits?

[MacBennett]

Speed limits are established to ensure both driving safety and the efficient utilization of road resources. Here are the relevant explanations: 1. Rear-end collisions: Increases the likelihood of rear-end collisions. Vehicles speeding often follow other vehicles too closely. When the leading vehicle applies emergency braking, the following vehicle is prone to rear-end collisions due to insufficient distance. 2. Rollover: Increases the risk of rollover. Excessive speed amplifies centrifugal force during turns. Calculations show that tripling the speed increases centrifugal force ninefold. Higher speeds generate greater centrifugal force, making the vehicle more susceptible to rollover if the driver makes abrupt steering corrections.