The invention discloses an interlaced area traffic control method based on traffic conflict spatial distribution characteristics. The method comprises the following steps: constructing a VISSIM simulation model by using traffic parameters of an urban expressway interlaced area; dividing the urban expressway interlaced area into different position areas; analyzing the number of traffic conflicts of different degrees in each position area; calculating a traffic risk index K of each position area according to the number of traffic conflicts of different degrees, and evaluating the traffic flow condition of each position area by using the traffic risk index; constructing a logistic regression classification model, training the logistic regression classification model, and taking the trained logistic regression classification model as a traffic conflict spatial distribution prediction model; and utilizing the traffic conflict space distribution prediction model to analyze the traffic flow condition of the interlaced area under different traffic parameters. According to the invention, through the traffic conflict space distribution prediction model, the traffic flow parameters and the structures of the interlacing area are converted into visual 0/1 safety indexes, so that the safety condition of the interlacing area is clear.
本发明公开了一种基于交通冲突空间分布特征的交织区交通管控方法,利用城市快速路交织区的交通参数构建VISSIM仿真模型;将城市快速路交织区划分为不同的位置区域;分析各位置区域的不同程度交通冲突发生的数量;根据不同程度交通冲突的数量计算各位置区域的交通风险指数K,利用交通风险指数评价各位置区域的交通流状况;构建逻辑回归分类模型,对逻辑回归分类模型进行训练,将训练后的逻辑回归分类模型作为交通冲突空间分布预测模型;利用交通冲突空间分布预测模型分析在不同交通参数下的交织区交通流状况。本发明通过交通冲突空间分布预测模型,将交织区交通流参数和交织区构造物转换为直观的0/1安全指标,使得交织区安全状况清晰。
Interlaced area traffic control method based on traffic conflict spatial distribution characteristics
一种基于交通冲突空间分布特征的交织区交通管控方法
2023-07-07
Patent
Elektronische Ressource
Chinesisch
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