武汉市金银潭地铁站施工区交通流特性研究

发布时间：2018-01-11 02:05

本文关键词：武汉市金银潭地铁站施工区交通流特性研究　出处：《武汉工程大学》2015年硕士论文　论文类型：学位论文

【摘要】：21世纪的中国正处于蓬勃向上的发展期,人民生活质量显著提高,道路建设欣欣向荣。城市交通问题进一步凸显,为了解决日益紧张的道路交通问题,大中型城市都在积极修建地铁。地铁站施工过程中占道施工问题严重,加大了原有道路交通运输压力拥堵情况严重。本文通过对地铁施工区域交通流的特性进行研究,总结其交通流特性,采取一系列的措施解决拥堵问题,有助于缓解地铁施工区的交通紧张,降低地铁施工对交通安全带来的不利影响。论文首先以离散动力学的模型为基础,针对武汉市金银潭地铁站建设期间对城市占道施工,影响道路交通作为研究对象,建立适合于武汉市金银潭地铁站的研究模型,通过建立的模型模拟金银潭地铁站施工期间,其施工区域占道施工对交通流的影响,即交通流的特性。由于本文研究的主要对象是金银潭地铁站施工区在占道施工情况下的交通流特性,所以选用的是交通流模型。在上世纪外国的专家在对相似情况下的研究采取了许多交通流模型,而本文主要是采取相似的离散动力学模型进行研究。离散动力学模型是上世纪末比较通行的一种新型交通流模型,在离散动力学模型的研究中其三要素空间、时间、状态都是相对分离的。而且离散动力学的各个因素是相对独立的,相互影响力较小。在通过计算机建立模型情况下经过简单的定义因素,模拟效率非常快,并且可调节性较强,便于灵活运用和反应真实的各种效应。本文以武汉地铁2号线金银潭地铁站施工区为研究对象,其施工段有公交车停靠点,旁边还有正待兴建的住宅小区,需要考虑公交车停靠时间以及重型运货卡车的加入。在某以时段内,重型车加入过多或者公交车停靠时间过久就会导致交通拥堵。具体的模型为:将道路分成l个元胞,每个元胞有3个状态:有一辆小车,有一辆大车,无车。车辆的速度也有3个状态:速度为0,速度为1,速度为2.其次文章通过到金银潭地铁站施工区进行现场交通调查,通过数据调查进行分析,得到实际的交通流特性。总结全文,金银潭地铁站交通流特性从交通流三要素角度出发可以归纳为三点:即行车速度方面,地铁站施工区域的行车速度要小于正常路段的行车速度;车流密度方面,在城市地铁施工期间,地铁施工区域车流密度大于其余正常路段;车流量方面,由于地铁站施工区占道施工,施工区域的车流量相对于正常路段的车流量较小。根据金银潭地铁站施工区域调研数据分析,金银潭地铁施工区的随机停车概率大概是0.12左右,而正常路段的随机停车概率大约为0.025左右,可见施工区对道路通行能力的还是有一定的影响的。金银潭地铁施工区域的交通流的拥堵程度是与此地的随机停车概率有关的,随机停车概率越小,说明道路上车流的运行状态越良好,随着随机概率的增大,道路中交通流的拥堵程度会随着其增加而上升。只有减小道路中随机停车概率的大小,才能有效的降低道路中交通流的拥堵情况。最终通过对于交通流特性的分析,得到金银潭地铁施工区对于周边生活环境的影响,以及采取措施解决类似问题的方案。论文在研究中提出通过交通路线管制、车辆管制、人流疏导等方案解决金银潭地铁施工区交通拥堵的措施。总结有以下措施:1、结合交通量预测结果,参照《公路通行能力研究》(交通部公路科学研究所)计算该路段通行能力,并确定施工路段满足基本通行需求的车道数。2、针对施工区域交叉路口信号灯重新进行信号配时设计。3、施工地段所有丁字路口左转车辆全部在前方路口掉头处理,同时减小车速保证安全。十字路口左转及掉头车辆全部禁止,在前方路口通行。以及采取一系列技术保障措施、组织保证措施。例如成立交通协调管理小组、配置交通协管员、配置临时配套设施、合理安排施工车辆等。
[Abstract]:In twenty-first Century Chinese is in the development period of vigorous, people's quality of life improved significantly, road construction is thriving. The city traffic problem is further highlighted, in order to solve the traffic problems in the increasingly tense, large and medium-sized city are actively building the subway subway station construction of road construction in the process of serious, increase the original traffic congestion pressure serious. Based on the study of the characteristics of the subway construction area of traffic flow, summarizes the characteristics of traffic flow, take a series of measures to solve the problem of congestion, help to ease the traffic tension area of subway facilities, reduce the adverse effects of subway construction on traffic safety. Firstly, based on the discrete dynamics model based on Wuhan the Jinyintan city subway station of city road construction during the construction period, the impact of road traffic as the research object, the establishment of suitable for Wuhan City The model of silver Tan subway station, through the establishment of the simulation model of Jinyintan subway station during the construction period, the construction of regional road construction on the traffic flow, the traffic flow characteristics. As the main object of this paper is the construction area of Jinyintan subway station in the road construction under the condition of traffic flow characteristics, so the choice is the traffic flow model. In the last century in the foreign experts to study the situation similar to take many traffic flow model, and the main purpose of this paper is to take discrete dynamic model of similar research. Discrete dynamical model is a new model of traffic flow at the end of the last century is better, the elements of space, in the study of discrete dynamic model in time, the state is relatively isolated. And various factors of discrete dynamics are relatively independent of each other, smaller influence. In the case with computer model after Jane The definition of single factors, the efficiency of simulation is very fast, and can adjust the strong, convenient and flexible use of the real effect. In this paper, taking Wuhan Metro Line 2 Jinyintan subway station construction area as the research object, the application of a section of the bus stops, there is pending the construction of the residential area, need to consider joining the bus stop time and heavy truck. In a period of time, heavy vehicles add too much or the bus stop time is too long will cause traffic congestion. The concrete model is as follows: the road is divided into L cell, each cell has 3 states: a car, have a big car, no car. There are 3 states: the speed of the vehicle speed is 0, the rate of 1, speed is 2. second through to the Jinyintan subway station construction area of traffic survey, through the analysis of survey data, the characteristics of traffic flow to get the actual summary, The Jinyintan subway station traffic flow characteristics of traffic flow from the perspective of elements can be divided into three points: the driving speed, driving speed, driving speed of the subway station construction area is less than the normal road; traffic density, during the city subway construction, subway construction area density is bigger than the rest of the normal road; traffic flow. Because of the construction area of road construction in subway station, traffic construction area relative to less traffic normal sections. According to the analysis of the survey data of construction area of Jinyintan subway station, random parking probability Jinyintan subway construction area of about 0.12, while the probability of normal random parking section is about 0.025, visible on the access road construction area the ability or have a certain influence. The Jinyintan area of subway construction traffic congestion degree is related with the probability of random parking here, random Parking probability is small, that the running state of road traffic is good, with the increase of random probability, the degree of congestion of traffic flow in the road will rise with the increase of the probability of random parking. Only reduce the size of the road, in order to effectively reduce the congestion of traffic flow in the road. Finally through the analysis of traffic flow characteristics the influence of Jinyintan area subway construction for the surrounding environment, and plan to take measures to solve the similar problems. The proposed route through traffic control, vehicle control in the study, abortion counseling scheme to solve the Jinyintan subway construction area traffic congestion measures. Summarized the following measures: 1, combined with the traffic volume prediction the result, according to < Highway Capacity Research > (Highway Science Institute) to calculate the traffic capacity of roads, and to determine the construction of road lane number.2 to meet the basic traffic demand According to the construction area, intersection traffic lights to signal.3 design, construction sites and all the T-junction turn left all vehicles in front of the junction turn, reduce the speed to ensure safety at the same time. All vehicles prohibited and turn left at the crossroads, traffic in front of the intersection. And take a series of measures such as the establishment of traffic organization guarantee measures. Coordination and management team, the allocation of traffic wardens, allocation of temporary facilities, reasonable arrangement of construction vehicles.

【学位授予单位】：武汉工程大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U491.112

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