基于属性识别理论的快速路交通安全态势评估方法研究

Study on Assessment Method of Expressway Traffic Security Situation Based on Attribute Recognition Theory

城市快速路是城市道路交通系统的骨架,在城市路网交通负荷总量中承担了很大的比例,而城市快速路网的安全水平将直接影响了城市快速路网的通行效率和服务水平。因此,对城市快速路网交通安全态势进行实时评估,可以为城市道路交通管理和决策提供重要参考依据。基于态势感知和预测理论,通过对交通安全态势影响因素分析,构建了比较合理、全面的快速路网交通安全态势评估指标体系,提出了基于属性识别理论的快速路网交通安全态势评估模型。该模型可以应用于不同城市、不同时段的快速路网体系,最后结合实例对某城市快速路交通安全态势进行评估。

The urban expressways are the skeleton of urban road traffic system, and bear a large proportion in the total traffic load of urban road network. The security level of urban expressway network will directly affect the traffic efficiency and service level of urban expressway network. Therefore, the traffic security situation of urban expressway network is assessed in real time, which can provide the important reference basis for the traffic management and decision making of urban road. Based on the situational awareness and prediction theory,through the analysis of the influence factors on the traffic security situation, this paper builds the more reasonable and full-scale expressway network traffic security situation assessment indicator system, and puts forward the expressway network traffic security situation assessment model based on attribute recognition theory.This model can be applied to the expressway network system in the different cities and the different periods.Finally combined with the examples, this paper assesses the traffic security situation of an urban expressway.