Human Factors Evaluation of Headlight Switching Systems

Lorna Middendorf; Patrick W. Dineen; Stefan Habsburg

doi:10.4271/740998

1974-02-01

Human Factors Evaluation of Headlight Switching Systems 740998

A search for methods of switching a proposed three beam headlight system led to the evaluation of 41 possible schemes. Human factors criteria reduced the original 41 to three systems which were tested in a laboratory with a broad range of subjects.

Recordings of practice trials, learning trials, and the responses to visual cues projected on a screen were analyzed. The same test procedure was also used to compare three alternative ways of switching conventional two beam headlight systems. Summary data is presented for the six systems tested grouped by test subject age, sex, and driving experience. The most pronounced difference observed was in the subjective preference rating among two beam switching systems. All systems tested resulted in remarkably few learning and practice trials. Small differences were recorded among systems in operational response time.

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Human Factors Evaluation of Headlight Switching Systems 740998

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