How Do Traffic Police Determine Fatigue Driving?
2 Answers
Generally, a simple method for detecting fatigue driving in vehicles is by calculating continuous driving time. Once it exceeds the preset duration in the system, an alarm will be triggered. Below is an introduction to common fatigue monitoring systems equipped in vehicles: 1. Definition: The commonly equipped fatigue monitoring system is called the "Fatigue Driving Warning System (BAWS)". It is based on the driver's physiological image response and consists of two main modules: the ECU and a camera. It uses the driver's facial features, eye signals, head movements, etc., to infer the driver's fatigue state and provides alarm prompts and takes corresponding measures. It offers active and intelligent safety protection for drivers and passengers. 2. Function: Some vehicle fatigue monitoring systems are referred to as "Fatigue Recognition Systems" (they record the driver's operational behavior from the start of the journey) and can determine the driver's fatigue level by identifying changes in driving operations during long trips. A decrease in the frequency of steering operations, accompanied by slight but abrupt steering actions to maintain driving direction, is a typical sign of the driver's lack of concentration.
Traffic police identify fatigued driving through several key methods. Driving duration is crucial - typically, continuous driving exceeding 4 hours requires a 20-minute break. Officers check dashcam timestamps at highway rest areas or inspection points. They also observe driver behaviors like drooping eyelids, frequent yawning, or slowed reactions, which directly indicate fatigue. Vehicle movements reveal problems too, such as unsteady steering or frequent lane deviations. Police capture these anomalies through surveillance footage and may question drivers about their mental state on-site. Notably, fatigued driving increases accident risks, making night shifts and long-distance routes special focus areas. I recommend drivers carry coffee or take breaks every two hours - good habits to avoid penalties.
