Improved Commercial Vehicle Conspicuity and Signalling Systems
Published January 01, 1985 by National Highway Traffic Safety Administration in United States
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Vehicle-into-iarge-truck accidents produce a disproportionately large number of fatalities. It is hypothesized that increasing a truck's visibility or conspicuity will reduce the number of vehicles colliding with trucks. The purpose of this project was to analyze thoroughly this specific accident problem, establish information requirements of other drivers, review the state of the art of conspicuity techniques, design and conduct a series of conspicuity experiments, design a new integrated lighting and marking system, design an augmented, low-cost reflectorized system for retrofitting on large trucks, and field test the augmented system on fleets of trucks. Approximately 2,000 trucks were fitted with the augmented system, and accident rates are currently being monitored and compared with those of a matched control group of 2,000 trucks. At the time of this writing, the 2-year field study is nearing completion. About 70 percent of the total accidents expected have been analyzed, and the results thus far indicate that the trucks treated with the reflectorized systems are being hit at a lower rate than are control trucks. Increasing conspicuity, therefore, appears to be an effective method of reducing vehicle-into-truck accidents.
|Technical Paper||Analysis of Off-Roadway Crashes for Intelligent Commercial Vehicle Applications|
|Technical Paper||Motor Vehicle Conspicuity|
|Technical Paper||Development of a Performance Specification for Indirect Visibility Systems on Heavy Trucks|
CitationSmith, R., Burger, W., Ziedman, K., and Mulholland, M., "Improved Commercial Vehicle Conspicuity and Signalling Systems," SAE Technical Paper 856096, 1985.
- Burg, A., and Beers J., “Motorcycle reflectorization for nighttime conspicuity,” University of California School of Engineering and Applied Science Report, Los Angeles, California, 1976.
- Burg, A., and Hulbert S.F., “Bicycle wheel reflectorization as an aid to detection and recognition,” Los Angeles, California, 1976.
- Burger, W.J., Smith R.L., Ziedman K., Mulholland M.U., Bardales M.C., and Sharkey T.J., “Improved commercial vehicle conspicuity and signalling systems, Task I: interim report,” Vector Enterprises, Inc., Santa Monica, California, March 1981.
- Cole, B. L., “Visual aspects of road engineering,” Proceedings 6th Conference of the Australian Road Research Board, pp. 102-148, 1972.
- Fisher, A.J., and Hall R.R., “The effect of presence light on the detection of change of vehicle headway,” Australian Road Research, 8, pp. 13-16, 1978.
- Jannsen, W.H., “The perception of maneuvers of moving vehicles: perceptability of relative sagittal motion on the basis of changes in apparent size or brightness of taillights,” Institute for Perception, Holland, 1972.
- Jannsen, W.H., “The perception of maneuvers of moving vehicles: thresholds for relative motion in depth,” Institute for Perception, Holland, 1973.
- Jannsen, W.H., Michon J.A., and Harvey L.O., “The perception of lead vehicle movement in darkness,” A ccident Prevention and Analysis, 8, pp. 151-166, 1976.
- Smith, W.M., “Sensitivity to apparent movement in depth as a function of stimulus dimensionality,” Journal of Experimental Psychology, 43, pp. 149-155, 1952.
- Smith, W.M., “Effect of monocular and binocular vision on the sensitivity to apparent movement in depth,” Journal of Experimental Psychology, 49, pp. 357-363, 1955.
- Steedman, W.C., and Baker C.A., “Perceived movement in depth as a function of stimulus size,” Aerospace Medical Research Laboratory, Wright-Patterson Air Force Base, Ohio, 1961.
- Ziedman, K.., Burger W.J., Smith R.L., Mulholland M.U., and Sharkey T.J., “Improved commercial vehicle conspicuity and signalling systems. Task II: analyses, experiments and design recommendation,” Vector Enterprises, Inc., Santa Monica, California, October 1981.