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为了改善高速公路防追尾安全距离模型,对模型中的驾驶员反应时间进行研究,分析不同车速时驾驶员反应时间对安全距离的影响。驾驶员反应时间受驾龄、应变能力、性别、心理生理状况、车速等多种因素的影响。基于模糊数学中隶属函数的有关理论,利用Matlab软件,在驾驶员反应时间大小允许的范围内,综合考虑各种主要因素,确定驾驶员反应时间。通过具体实例说明该方法的应用,结果证明,应用模糊数学,可以计算出不同的驾驶员,在不同的车速时的反应时间。
In order to improve the anti-collision rear-end safety distance model of expressway, the driver reaction time in the model was studied, and the influence of driver reaction time on safety distance at different vehicle speeds was analyzed. Driver response time by driving experience, resilience, gender, psychological and physical conditions, speed and other factors. Based on the theory of membership function in fuzzy mathematics, the driver response time is determined by considering all the main factors with the help of Matlab software within the allowable range of driver response time. The application of this method is illustrated by a concrete example. The result proves that the application of fuzzy mathematics can calculate the response time of different drivers at different vehicle speeds.