Author:

Keywords:

Adult, Attention, Automobile Driving, Automobiles, Deceleration, Depth Perception, Eye Movements, Female, Humans, Safety, Space Perception, Task Performance and Analysis, Vision Tests, Visual Perception, Science & Technology, Social Sciences, Technology, Life Sciences & Biomedicine, Ergonomics, Public, Environmental & Occupational Health, Social Sciences, Interdisciplinary, Transportation, Engineering, Social Sciences - Other Topics, stereo vision, braking, visual inforruation, TIME-TO-COLLISION, VISUALLY GUIDED BRAKING, BINOCULAR VISION, 3-DIMENSIONAL SPACE, OPTIC-FLOW, INFORMATION, TAU, DRIVERS, MOTION, DISPARITY, Pilot Projects, 1117 Public Health and Health Services, 1507 Transportation and Freight Services, 1701 Psychology, Logistics & Transportation, 3509 Transportation, logistics and supply chains, 4206 Public health, 5201 Applied and developmental psychology

Abstract:

In this study the contribution of stereo vision to the control of braking in front of a stationary target vehicle was investigated. Participants with normal (StereoN) and weak (StereoW) stereo vision drove a go-cart along a linear track towards a stationary vehicle. They could start braking from a distance of 4, 7, or 10m from the vehicle. Deceleration patterns were measured by means of a laser. A lack of stereo vision was associated with an earlier onset of braking, but the duration of the braking manoeuvre was similar. During the deceleration, the time of peak deceleration occurred earlier in drivers with weak stereo vision. Stopping distance was greater in those lacking in stereo vision. A lack of stereo vision was associated with a more prudent brake behaviour, in which the driver took into account a larger safety margin. This compensation might be caused either by an unconscious adaptation of the human perceptuo-motor system, or by a systematic underestimation of distance remaining due to the lack of stereo vision. In general, a lack of stereo vision did not seem to increase the risk of rear-end collisions.