提前右转机动车与行人冲突特性研究

发布时间：2018-03-09 09:17

本文选题：提前右转　切入点：行人　出处：《吉林大学》2015年硕士论文　论文类型：学位论文

【摘要】：目前，我国城市交叉口采取提前右转组织方式已较为普遍。由于提前右转组织方式与一般右转组织方式存在较大组织差异，右转机动车和行人到达规律、穿越决策和冲突行为等已发生变化，在一般右转组织方式研究中的基本假设和分析方法不能适用于提前右转组织方式，有必要对提前右转组织方式下右转机动车与行人的冲突特性进行研究。本文完成的主要工作包括：（1）根据城市交叉口提前右转组织方式的应用现状，针对提前右转方式下交通流的运行特性，提出了提前右转机动车与行人冲突特性研究的必要性，阐述了本文的研究目的和意义，并总结国内外对右转机动车与行人冲突相关的研究方法，考虑不同研究方法的适用范围，确定了提前右转机动车与行人冲突特性的研究方法，制订了论文的结构框架。（2）通过分析在交叉口设计中常见的提前右转方式的组织形式，，结合右转机动车和行人的运行特性，给出了提前右转组织方式的定义，并根据渠化方式的差异，对提前右转组织方式进行分类，同时通过分析提前右转入口处提前右转机动车的运行状况，考虑不同因素对提前右转机动车的到达产生的影响，分别建立了直右混行式和右转专用式提前右转方式下提前右转机动车车头时距分布模型。（3）对比冲突区内提前右转机动车与行人的延误，分析冲突中交通流通行的优先等级，确定了提前右转方式下的道路通行权，并在此通行权下，研究了冲突区内交通流的微观运行过程，针对直右混行式提前右转组织方式，基于提前右转机动车与行人拥有平等通行权，描述了机动车与行人的冲突机理并计算了冲突中提前右转机动车与行人的通行时间，针对右转专用式前右转组织方式，根据不同右转机动车的运行状态基于不同的通行规则，确定了饱和释放段内行人的通行能力和非饱和释放段内提前右转机动车与行人的通行时间。（4）分析冲突区提前右转机动车与行人排队等待和消散过程，建立了直右混行式和右转专用式提前右转方式的延误计算模型，利用交叉口实测数据标定了相关参数，并对延误模型进行验证，证明了本文研究方法的可靠性和适用性。同时通过运用此延误模型为提前右转机动车与行人设置信号控制提供依据，以提高冲突区运行效率和行人安全为目的，计算了设置行人信号控制的临界流量，为冲突区信号控制设置条件提供参考。最后，总结了本文的主要研究成果以及研究过程中存在的不足，并制订了下一步研究计划。
[Abstract]:At present, it is quite common for urban intersections in our country to adopt the way of organizing ahead of time to turn right. Because there is a great difference between the mode of organization of advance right turn and that of general right turn, the law of right turning motor vehicle and pedestrian arrives, The traversing decision and conflict behavior have changed, so the basic assumptions and analytical methods in the research of general right-turn organization can not be applied to the pre-rightward organization. It is necessary to study the conflict characteristics between right turning vehicle and pedestrian in the early right turn organization mode. The main work accomplished in this paper is as follows:. 1) according to the present situation of the application of the early right turn organization at the city intersection, the necessity of the study on the conflict characteristics between the motor vehicle and the pedestrian is put forward in view of the traffic flow characteristics under the ahead right turn mode. This paper expounds the purpose and significance of this research, and summarizes the research methods related to the conflict between right-turn vehicles and pedestrians at home and abroad. Considering the applicable scope of different research methods, it determines the research methods of the characteristics of conflicts between right-to-right vehicles and pedestrians in advance. The structural framework of the thesis is worked out. 2) through analyzing the organization form of early right turn in intersection design, combining with the running characteristic of right turn vehicle and pedestrian, the definition of ahead right turn organization mode is given, and according to the difference of channelization mode, This paper classifies the organization mode of advance right turn, analyzes the running condition of advance right turn motor vehicle at the entrance of advance right turn, and considers the influence of different factors on the arrival of advance right turn motor vehicle. In this paper, the time distribution models of the front distance of the motor vehicle are established respectively under the direct right mixed mode and the right turn special way advance right turn mode. (3) comparing the delay between vehicles and pedestrians in conflict area, analyzing the priority of traffic flow in conflict, determining the right of road under the mode of early right turn, and under this right of way, The microscopic operation process of traffic flow in conflict zone is studied. Aiming at the direct right mixed mode of early right turning, the traffic rights of motor vehicles and pedestrians are equal. This paper describes the conflict mechanism between motor vehicle and pedestrian and calculates the passage time of motor vehicle and pedestrian in conflict. According to the special right turn mode, according to the operation state of different right turn motor vehicle, it is based on different traffic rules. The capacity of the pedestrian in the saturated release section and the passage time of the vehicle and pedestrian in the unsaturated release section are determined. (4) analyzing the queue waiting and dissipating process of vehicle and pedestrian in conflict area, the delay calculation model of straight right mixed mode and special right turn mode is established, and the relevant parameters are calibrated with the measured data of intersection. The delay model is verified, which proves the reliability and applicability of this method. At the same time, the delay model is used to provide the basis for the signal control of the vehicle and pedestrian in advance. In order to improve the operation efficiency and pedestrian safety of conflict zone, the critical flow rate of pedestrian signal control is calculated, which provides a reference for setting conditions of signal control in conflict zone. Finally, this paper summarizes the main research results and the shortcomings in the research process, and formulates the next research plan.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U491.23

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