This study evaluated brake responses of unsuspecting drivers to brake-signal presentations using a conventional brake-lamp system with and without supplemental high-mounted brake lamp(s). The signals were presented during the daytime at speeds of 48–72 km/h. The main finding is that the signals given by the systems with one or two supplemental high-mounted brake lamps were more likely to produce a brake response by a following driver. On the other hand, the reaction times of the brake responses did not vary between the systems. The implications of the findings as well as comparisons with other relevant studies are discussed.
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References
1.
Allen Corporation of America. Field validation of taillights–Report on Phase 1: Pilot testing. Alexandria, Virginia. Prepared for NHTSA, U. S. Department of Transportation, Contract No. DOT-HS-7–01756, April 1978.
2.
HaysW. L.Statistics. New York: Holt, Rinehart and Winston, 1963.
3.
MaloneT. B.KirkpatrickM.KohlJ. S.BakerC.Field test evaluation of rear lighting systems. Alexandria, Virginia: Essex Corporation. Prepared for NHTSA, U. S. Department of Transportation, Contract No. DOT-HS-5–01228, February 1978.
4.
ClausenH. J. SchmidtVerbesserung des rückwärtigen Signalbildes an Kraftfahrzeugen durch zusätzliche hochgesetzte Bremsleuchten. ATZ Automobiltechnische Zeitschrift, 1977, 79, 505–508.
5.
SivakM.Motor vehicle rear lighting and signaling: Effects of spacing, position, intensity, and color. An applied literature review. Highway Safety Research Institute, University of Michigan, Ann Arbor, Michigan, Report No. UM-HSRI-78–8, January 1978.
