山地城市公交运行速度研究
发布时间：2019-02-16 16:21
【摘要】：特殊的地形条件造就了山地城市道路多陡坡和多弯道的特点，使得公交运行在复杂的环境中，引发的公交安全事故往往比较严重。在政府大力提倡公交出行和公交快速发展的形势下，如何保障山地城市公交运行速度的安全性是一项意义重大的工作，因此，对山地城市公交运行速度进行研究很有必要。 论文首先从山地城市路网特点、山地城市公交线网特点两个方面进行了分析，总结了山地城市公交组成、居民公交出行特点和山地城市公交运行特点。其次，，对公交运行速度相关概念进行阐述，分别从人、车、路和环境等方面深入分析了山地城市公交运行速度的影响因素。接着介绍了山地城市不同路段及公交进、出站过程中公交运行速度调查方法，对调查数据进行整理分析，重点分析了道路条件与运行速度之间的关系，总结了不同道路等级下不同路段公交运行速度的变化规律。然后，对路段实测数据进行多元线性回归，在平直路段建立了运行速度与初速度和运行距离两个因素的关系模型；纵坡路段建立了运行速度与初速度、运行距离和纵坡坡度的关系模型；平曲、弯坡路段则建立了运行速度与初速度、转弯半径和纵坡坡度的关系模型，在考虑交通量、社会车辆、天气条件等因素的基础上对模型进行了修正；在公交站台影响区运行速度模型方面，以路阻函数为基础分别建立了公交车辆进站阶段和出站阶段的运行速度模型。最后，在对重庆市近几年公交安全事故和国内外运行速度和安全关系研究的基础上，以公交运行速度、相邻路段公交运行速度连续性和运行速度与设计速度的速度差三个指标建立了基于vague物元的公交安全运行速度判断体系，实现了对山地城市公交运行速度安全性判定。 通过本文的研究，建立了山地城市公交运行速度与初速度、运行距离、半径和坡度的关系模型以及公交车辆进、出站阶段的运行速度模型，并对运行速度安全等级进行判定，得到了公交运行速度的安全等级，对确定公交限速值有一定的借鉴意义。
[Abstract]:The special terrain conditions bring up the characteristics of many steep slopes and many bends on the roads in mountainous cities, which make the public transport run in a complex environment, and the public transport safety accidents are often serious. Under the situation that the government strongly advocates the public transport travel and the rapid development of public transport, how to guarantee the safety of the running speed of public transport in mountainous cities is a significant work. Therefore, it is necessary to study the running speed of public transport in mountainous cities. Firstly, the paper analyzes the characteristics of mountainous city network and the characteristics of mountain city bus network, and summarizes the composition of mountain city public transport, the characteristics of residents' public transport travel and the characteristics of mountain city's public transport operation. Secondly, the related concepts of bus speed are expounded, and the influencing factors of bus speed in mountainous cities are analyzed from the aspects of person, vehicle, road and environment. Secondly, the paper introduces the investigation method of bus running speed in different sections and bus entry and exit of mountainous cities, analyzes the investigation data, and analyzes the relationship between the road condition and the running speed. This paper summarizes the changing law of bus speed under different road grades. Then, the multivariate linear regression of the measured data is carried out, and the model of the relationship between the running speed and the initial speed and the running distance is established in the straight section. The relationship model between running speed and initial speed, running distance and slope degree is established. The relationship model between running speed and initial speed, turning radius and slope gradient is established, and the model is modified on the basis of taking traffic volume, social vehicle, weather conditions and other factors into account. In the aspect of the operation speed model of the affected area of the bus station, based on the road resistance function, the running speed model of the public transport vehicle in the stage of entering and leaving the station is established respectively. Finally, on the basis of the research on the safety accidents of public transport in Chongqing in recent years and the relationship between operation speed and safety at home and abroad, the running speed of public transport is taken as the basis. Three indexes of bus running speed continuity and speed difference between design speed and running speed of adjacent road sections are established based on vague matter-element to judge the safe running speed of public transport in mountainous cities. Through the research of this paper, the relationship model between the running speed and the initial speed, the running distance, the radius and the slope of the bus in and out of the mountain city is established, and the speed model of the bus in and out of the station is established, and the safety grade of the running speed is determined. The safety grade of bus running speed is obtained, which is useful for determining the bus speed limit.
【学位授予单位】：重庆交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U491.17
本文编号：2424626
[Abstract]:The special terrain conditions bring up the characteristics of many steep slopes and many bends on the roads in mountainous cities, which make the public transport run in a complex environment, and the public transport safety accidents are often serious. Under the situation that the government strongly advocates the public transport travel and the rapid development of public transport, how to guarantee the safety of the running speed of public transport in mountainous cities is a significant work. Therefore, it is necessary to study the running speed of public transport in mountainous cities. Firstly, the paper analyzes the characteristics of mountainous city network and the characteristics of mountain city bus network, and summarizes the composition of mountain city public transport, the characteristics of residents' public transport travel and the characteristics of mountain city's public transport operation. Secondly, the related concepts of bus speed are expounded, and the influencing factors of bus speed in mountainous cities are analyzed from the aspects of person, vehicle, road and environment. Secondly, the paper introduces the investigation method of bus running speed in different sections and bus entry and exit of mountainous cities, analyzes the investigation data, and analyzes the relationship between the road condition and the running speed. This paper summarizes the changing law of bus speed under different road grades. Then, the multivariate linear regression of the measured data is carried out, and the model of the relationship between the running speed and the initial speed and the running distance is established in the straight section. The relationship model between running speed and initial speed, running distance and slope degree is established. The relationship model between running speed and initial speed, turning radius and slope gradient is established, and the model is modified on the basis of taking traffic volume, social vehicle, weather conditions and other factors into account. In the aspect of the operation speed model of the affected area of the bus station, based on the road resistance function, the running speed model of the public transport vehicle in the stage of entering and leaving the station is established respectively. Finally, on the basis of the research on the safety accidents of public transport in Chongqing in recent years and the relationship between operation speed and safety at home and abroad, the running speed of public transport is taken as the basis. Three indexes of bus running speed continuity and speed difference between design speed and running speed of adjacent road sections are established based on vague matter-element to judge the safe running speed of public transport in mountainous cities. Through the research of this paper, the relationship model between the running speed and the initial speed, the running distance, the radius and the slope of the bus in and out of the mountain city is established, and the speed model of the bus in and out of the station is established, and the safety grade of the running speed is determined. The safety grade of bus running speed is obtained, which is useful for determining the bus speed limit.
【学位授予单位】：重庆交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U491.17
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