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驾驶员视觉搜索模式模糊聚类评价方法

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Keywords: 交通工程,驾驶员,模糊理论,视觉搜索模式,评价方法,聚类分析

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Abstract:

？针对用单一眼动参数评价驾驶员视觉搜索模式存在片面性和较大误差等不足,提出运用模糊理论,将驾驶员的注视持续时间、水平方向视角、垂直方向视角、扫视幅度和扫视速度5个主要表征参数综合起来进行评价的方法。通过真实交通环境中的实车试验,记录驾驶员行驶过程的眼动数据,建立模糊相似矩阵和模糊等价矩阵,依据聚类样本驾驶员的驾驶里程确定最佳阈值,将样本驾驶员视觉搜索模式分为4类,并以每类驾驶员视觉搜索模式特征为判别标准,运用择近原则对其他驾驶员的视觉搜索模式进行识别和评价。结果表明:所提出的驾驶员视觉搜索模式模糊聚类评价方法有效且可靠。

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