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Trans. Planning Journal
| Title | UNCERTAINTIES OF PERCEIVED RELATIVE SPEED AND REACTION TIME UNDER FOGGY AND EMERGENCY BRAKING CONDITIONS—IN A PERSPECTIVE IMITATING HEISENBERG UNCERTAINTY PRINCIPLE |
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| Author | Mu-Chen Chen、Hsi-Jen Wu |
| Summary | Foggy weather conditions affect uncertainties of driver perceptual judgments of speed and distance. However, in a heavy foggy condition and a leading vehicle braking condition uncertainties of perceived relative speed and reaction time are complicated and need to be identified. If those uncertainties in a foggy weather condition exist in a perspective imitating Heisenberg Uncertainty Principle, then some phenomena for the following driver behaviors can be explained. The purpose of the research aimed to test the first hypothesis that explained a trade-off relationship between uncertainties of perceived psychological energy and uncertainties of reaction time of following vehicle drivers, and the second hypothesis that stated a trade-off relation between uncertainties of reaction time and uncertainties of perceived relative speed in regard to averages of perceived relative speed and mental workload. One additional experiment have conducted, giving comparisons with those uncertainties exist in a clear weather condition having been tested in Sheu’s two-stage experiment based on a quantum optical flow-based model. The findings of this study not only show that those uncertainties also exist in foggy and braking conditions but also indicate the statistical significant no-difference between the two action constants in foggy and clear weather conditions. The results may help to characterize car following phenomena in foggy conditions under driver perception uncertainties and to stimulate new ideas for the development of dynamic, stochastic and time-varying driver perception model and theories. |
| Vol. | 46 |
| No. | 2 |
| Page | 117 |
| Year | 2017 |
| Month | 6 |
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