Can Headway Reduction in Fog Be Explained by Impaired Perception of Relative Motion?

  title={Can Headway Reduction in Fog Be Explained by Impaired Perception of Relative Motion?},
  author={St{\'e}phane Caro and Viola Cavallo and Christian Marendaz and Erwin R. Boer and Fabrice Vienne},
  journal={Human factors},
  volume={51 3},
OBJECTIVE The goal of this study was to provide a better understanding of driver behavior in fog. BACKGROUND Impaired perception of changes in headway is hypothesized to be one of the reasons for shorter following distances in foggy conditions as compared with clear weather. METHOD In the experiments described here, we measured response time for discriminating between whether the vehicle ahead is getting closer or farther away. Several visibility conditions were studied, ranging from a no… CONTINUE READING


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