Does the Driver's Field of View Angle Decrease as Vehicle Speed Increases?

[NicoleDella]

As the vehicle's speed increases, the driver's gaze point moves forward, and the range of observation on both sides of the road narrows. Here are the specific details regarding the field of view angle: 1. Field of View Width: At a speed of 64 km/h, the driver's field of view width is 37 degrees, which sharply decreases to 13 degrees at 97 km/h. 2. Driving Conditions: At lower speeds, drivers expand their field of view by moving their eyes or turning their heads. At high speeds, they can only focus intently on the road ahead. The time available for drivers to observe and react to surrounding environmental conditions decreases, leaving insufficient time to detect potential hazards and take timely emergency measures. Additionally, as speed increases, the driver's visual acuity declines, making it easier to focus on the road ahead while neglecting the surroundings. As vehicle speed increases, the driver's gaze point tends to fixate further into the distance, resulting in a narrower field of view angle and blurrier vision. Moreover, prolonged high-speed driving can lead to driver fatigue, increasing the likelihood of operational errors.