行人—非機(jī)動車共享道路安全與效率研究
[Abstract]:In recent years, some cities in our country have adopted the form of pedestrian and non-motorized road sharing in the old urban areas and commercial districts with large pedestrian flows, so that pedestrians and non-motor vehicles can borrow each other's driving space. Thus can carry on the expansion of the motorway and alleviate the traffic jam caused by the high passenger flow. However, the rapid development of public bicycles and the emergence of shared bikes lead to the safety of shared roads to be considered. So this paper chooses the shared road as the research object, deeply studies the traffic conditions suitable for its setting, and analyzes the safety and efficiency of the shared road, which is of great significance to the setting of the shared road in the future. In this paper, some basic parameters of shared roads should be taken into account when analyzing the safety and efficiency of shared roads. So this paper firstly analyzes the basic traffic characteristics of the traffic entities on the shared road, and gives the investigation scheme for the number of conflicts, speed and other related parameters on the shared road, so as to prepare the basic data for the analysis of the safety efficiency of the shared road. Secondly, this paper analyzes the indicators of shared road safety and efficiency and constructs a shared road model. This paper uses the surpassing of traffic entities on shared roads and the number of encounter conflicts as indicators to evaluate the safety of shared roads. Considering that the number of conflicts is small and the roads are safe but inefficient, the concept of speed difference is added in this paper, which uses the number of conflict on shared roads and non-motor vehicles. The pedestrian speed difference constructs the shared road service level and serves as the efficiency evaluation index. In this paper, a shared road model is established by means of cellular automata (CA) based on the basic data survey of shared roads. This paper simulates the number and speed of conflict in different conditions of shared road through model simulation, classifies the number of conflicts into 6 categories by cluster analysis, and obtains the safety evaluation index of shared road, at the same time, through the number of conflicts, The speed difference construction shared road service level evaluation index as the efficiency analysis basis. At the same time, this paper studies the change of service level of shared road under different occupation rate and width, and puts forward the suitable conditions for setting up shared road. Through the comparative analysis of service level under the condition of having and no isolation setting, the conditions of setting isolation facilities are obtained. Finally, the model proposed in this paper is used to model and analyze the shared road in Xi'an, and the model simulation data are compared with the actual data to verify the reliability of the model.
【學(xué)位授予單位】:長安大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:U491
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