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An Ergonomic Evaluation of School Bus Cross View Mirror Systems
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English
Abstract
This research studied the problems and effectiveness of existing cross view school bus mirror systems. Interviews were conducted with 49 school bus drivers to ascertain their evaluations of the use and perceived effectiveness of various cross view mirror systems.
Six commercially available cross view mirrors were randomly selected for testing. These mirrors were used to make the seven cross view mirror systems (each with 2 to 4 cross view mirrors) which were evaluated.
The optical properties of each cross view mirror and the field of view (FOV) of each mirror system were measured in a laboratory environment. Mirror system FOVs were determined with the mirrors mounted on each of three different types of school buses. The directly observable FOV of each bus was also determined.
Driver child detection field studies were conducted using eight bus drivers and six mirror systems with simulated children. Performance measures included child detection capability at selected locations around a bus as well as driver glance frequency and duration.
The results of the field studies confirmed predictions from the laboratory FOV measurements and indicated wide differences in mirror system FOVs and subsequent driver performance.
This paper is a condensed version of the reports written for this study. The reader should refer to (1)* and (2) for more details.
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Authors
Citation
Garrott, W. and Kiger, S., "An Ergonomic Evaluation of School Bus Cross View Mirror Systems," SAE Technical Paper 920401, 1992, https://doi.org/10.4271/920401.Also In
References
- Garrott, W.R. Rockwell, T.H. Kiger, S.M. Ergonomic Research on School Bus Cross View Mirror Systems Report DOT HS 807 676 1990
- Wong, L.S. An Ergonomic Study of Child Detection with School Bus Cross View Mirrors The Ohio State University 1990
- Improving School Bus Safety Special Report 222 of the Transportation Research Board National Research Council 1989
- Mortimer, R.G. Jorgeson, C.M. “Drivers' Vison and Performance with Convex Exterior Rearview Mirrors” SAE Paper 740961 1974
- Henderson, R.L. Smith, R.L. Burger, W.J. Stern, S.D. “Visibility from Motor Vehicles” SAE Paper 830564 1983
- Carruthers, G.F. “Rear View Mirrors” British Journal of Physiological Optics Monograph 23 129 131 1966
- Seeser, J.W. “Automotive Mirror Size Requirements Based on Field of View Considerations” SAE Paper 760005 1976
- Kaehn, C.H. “Evaluation of Two Convex Mirror Systems by Government Drivers” SAE Paper 750472 1975
- Mourant, R.R. Donohue, R.J. “Acquisition of Indirect Vision Information by Novice, Ex-perienced, and Mature Drivers” Journal of Safety Research 9 39 46 1977
- Burger, W.J. Ziedman, D. Development and Implementation of a Rear Vision Device Test Protocol, Volume II, Simulated-Use Testing Report DOT HS 807 232 1987
- Fisher, J.A. Galer, I.A.R. “The Effects of Decreasing Radius of Curvature of Convex External Rear View Mirrors Upon Drivers' Judgments of Vehicles Approaching in the Rearward Field” Ergonomics 27 1209 1224 1984
- Sugiura, S. Kmura, K. “Outside Rear View Mirror Requirements for Passenger Cars -- Curvature, Size and Location” SAE Paper 780339 1978
- Kaehn, C.H. “Evaluation of a New Automotive Plane and Convex Mirror System by Government Drivers” SAE Paper 760006 1976
- Donohue, R.J. “Driver Use of Indirect Vision Systems” Proceedings of the Sixth International Conference on Experimental Safety Vehicles 665 674 1977
- Hale, A. Shapiro, R.G. Blomberg, R.D. Kearney, E.F. Development and Test of Rural Pedestrian Safety Counter-measures Report DOT HS 806 518 1983
- Satoh, H. Yamanaka, A. Kondoh, T. Yamashita, M. Matsuzaki, M. Akizuki, K. “Development of Periscope Mirror System” JSAE Review November 1983