Driver Head Movements in Left Outside Mirror Viewing 810761

Two field studies were conducted on public roads to measure driver head movements while using the left outside passenger car mirror. The first study measured the effects of mirror width in the presence or absence of overtaking traffic. Driver head movements during left lane-changing maneuvers were recorded from a lead vehicle equipped with a motion picture camera and a telephoto-zoom lens. Results showed that, in addition to the head turning motions, the drivers made on the average about 2.0 inches of lateral head movements while using one of the four left outside mirror sizes which ranged in width from 2.3 to 10.6 inches. The drivers were also found to make larger lateral head movements when no other vehicles were present in the mirror as compared to when an overtaking vehicle was present. The second study was conducted in no overtaking traffic with one mirror width and used an improved photographic technique. Head movements during left lane changing maneuvers were recorded by a motion picture camera which was mounted in the back of the subject's car and which photographed the image of the driver's head and eyes in the left outside mirror. The data of 25 drivers using a 5.1 inch wide left outside mirror showed that drivers moved their head laterally from 0.4 to 5.0 inches, with a median of 1.5 inches, after turning their heads to search in the mirror. In both field studies, large individual head movement behavioral differences were observed.


Subscribers can view annotate, and download all of SAE's content. Learn More »


Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:

Human Subject Kinematics and Electromyographic Activity During Low Speed Rear Impacts


View Details


Predicting the Head-Neck Posture and Muscle Force of the Driver Based on the Combination of Biomechanics with Multibody Dynamics


View Details


Application of a Finite Element-Based Human Arm Model for Airbag Interaction Analysis


View Details