The warning signs of drowsy driving include obvious physical and behavioral manifestations. Physically, these include frequent blinking (more than 15 times per minute), increased yawning, blurred vision or dry eyes. Modern vehicles equipped with fatigue monitoring systems detect drivers' facial features (such as head drooping or prolonged eye closure) via cameras or analyze abnormal steering patterns (like reduced steering frequency with sudden movements), triggering alerts through a coffee cup icon on the dashboard or voice prompts. Drivers are advised to take a 15-minute break after two hours of continuous driving. If any symptoms occur, immediately pull over to a safe area for a 20-minute nap. Avoid driving with less than 6 hours of sleep or exceeding 8 hours of cumulative driving within 24 hours. Long-haul transport must strictly follow the "4-6-2" rule: 4 hours driving with a 20-minute break, 6 hours driving with a 1-hour rest, and a 15-minute nap every 2 hours. Additionally, maintain proper cabin ventilation and temperature (20-23°C) to mitigate fatigue.
