THE ROLE OF CURVE RADIUS AND ANGLE IN THE SUBJECTIVE ASSESSMENT OF ROAD CURVATURE
This study was concerned with the effect that the geometric variables curve radius and curve angle and the level of experimental instruction had on a driver's perception of curvature of an approaching road bend. Two experiments were performed where subjects estimated the magnitude of curvature of a set of perspective road-like scenes in relation to a standard view presented. The results showed that with multi-factorial presentation of the variables, curve angle had a major influence on curvature assessment whereas curve radius and the level of experimental instruction were less important in this task. Single manipulations of the two geometric variables confirmed that subjects were able to discriminate between the levels chosen for each factor. These findings are in contrast to that expected from curve geometry and support the notion of an illusive curve phenomenon on the road. (Author/TRRL)
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Supplemental Notes:
- The proceedings of the 20th Annual Conference of the Ergonomics Society of Australia & New Zealand, Ergonomics in the Community.
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Corporate Authors:
Ergonomics Society of Australia and New Zealand
Science Centre, 35-43 Clarence Street
Sydney, New South Wales, Australia -
Authors:
- Fildes, B N
- Triggs, T J
- Conference:
- Publication Date: 1983
Media Info
- Features: Figures; References; Tables;
- Pagination: p. 73-86
Subject/Index Terms
- TRT Terms: Curvature; Drivers; Highway curves; Perception; Radius
- Old TRIS Terms: Driver perception; Radius of curvature
- ITRD Terms: 6427: Angle; 2872: Bend (road); 8525: Conference; 2870: Degree of curvature; 1772: Driver; 9020: Evaluation (assessment); 2229: Perception; 6402: Radius; 6288: Test method
- Subject Areas: Design; Highways; Safety and Human Factors;
Filing Info
- Accession Number: 00389916
- Record Type: Publication
- Source Agency: ARRB
- Files: ITRD, TRIS, ATRI
- Created Date: Nov 30 1984 12:00AM