Title The effects of driver perception reaction times on crash sequence
Year 2018
Degree Master
School Department of Transportation and Logistics Management College of Management National Chiao Tung University
Author Ya-Jin Lin
Summary The thesis, using naturalistic driving study data to explore 3 topics: (1) the effect of driver’s perception time, (2) forecasting crash sequence, and (3) the risk of crash sequence.
In the first topic, driver’s perception time(PT) plays an important role of driver information processing. And it was found that variables (not daylight, traffic density D+, and distraction) would enhance PT; on the other hand, intersection-related and angry would decrease PT. It could be used to develop customized collision avoidance system and to alert driver in advance.
Secondly, crash sequence is helpful for analyzing potential factors caused crash. Crash sequence is defined as a combination of pre-incident maneuver, precipitating event and evasive maneuver. In order to understanding what factors will caused evolution of crash sequence, using variables, contains information before precipitating event occurred, to forecast composition of precipitating event and evasive maneuver. And the forecasting accuracy is about 70%.
The final one, risk level of crash sequence gave an example of how dangerous when driver making left turning at the intersection. There are 3 vehicles lining for turning. The first vehicle finished turning, the second vehicle suddenly stopped because of pedestrian crossing, and the third vehicle (subjective vehicles) couldn’t see pedestrian and expected that complete the turning as the first vehicle did. It is the most classic case in this study, and it could be improved by adjusting traffic control or pedestrian warning system.
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