论文总字数：25928字

摘 要

随着社会的经济发展与城市规模的逐步扩大,城市交通拥堵问题脱颖而出。时至今日它的存在已经严重影响到了社会经济的发展。截止当前，国内外对于城市隧道的研究相对而言较少。现有的研究主要针对隧道的事故原因和处理方面，对于城市隧道方面，隧道拥堵的形成机理以及隧道拥堵的疏通方案方面的研究少之甚少。

本文首先从隧道交通的理论研究入手，研究隧道拥堵的成因，并分析了南京现有过江设施的现状，从而分析南京扬子江隧道的拥堵情况。接着从扬子江隧道的交通现状及交通量展开数据收集与实地调查，并根据数据分析研究扬子江隧道的交通特征及交通流量的时空分布。最后针对扬子江隧道服务水平与通行能力的变化，提出隧道交通拥堵的疏解分流方案与建议。

关键词：扬子江隧道；瓶颈路段；交通拥堵；数据分析；优化政策；

Analysis and Optimization of Traffic Congestion in the Early Peak of Yangzijiang Tunnel from North to South

Abstract

With the economic development of society and the gradual expansion of urban scale , the urban traffic congestion stands out .Its existence has seriously affected the socio - economic development today .Up to now , there is relatively little research on urban tunnels at home and abroad .The existing research focuses mainly on the cause and treatment of tunnels , including the formation mechanism of tunnel congestion and the dredging scheme of tunnel congestion .

We study the causes of tunnel congestion and analyze the status of existing river crossing facilities in Nanjing , thus analyze the congestion of Nanjing Yangtze River Tunnel .Then , conduct data collection and field investigation from the traffic status and traffic volume of the Yangtze River Tunnel , and study the traffic characteristics and space - temporal distribution of traffic flow according to the data analysis .Finally , according to the service level and capacity , the diversion scheme and suggestions of tunnel traffic congestion are proposed .

Keywords: Yangzi River Tunnel ; bottleneck section ; traffic congestion ; data analysis ; optimization policies ;

目 录

摘 要............................................................................................................................................Ⅰ

Abstract..........................................................................................................................................Ⅱ

第一章 引 言...............................................................................................................................1

1.1 研究背景及意义..............................................................................................................1

1.2 国内外研究现状..............................................................................................................1

1.2.1国内研究现状........................................................................................................1

1.2.2国外研究现状........................................................................................................2

1.3主要研究内容与技术路线...............................................................................................2

1.3.1主要研究内容........................................................................................................2

1.3.2技术路线................................................................................................................2

第二章 隧道进口瓶颈路段交通特性及拥堵形成机理...............................................................3

2.1瓶颈路段的交通特征及发展趋势...................................................................................3

2.2瓶颈路段的拥堵形成机理...............................................................................................4

2.2.1交通拥堵的形成原因............................................................................................4

2.2.2扬子江隧道拥堵现状............................................................................................5

2.2.3扬子江隧道进口基本情况与交通条件................................................................7

2.3瓶颈路段交通设施现状...................................................................................................7

第三章 扬子江隧道交通流量调查与分析...................................................................................7

3.1调查方案设计与数据获取...............................................................................................7

3.1.1调查方法与时间的选取........................................................................................7

3.1.2交通流量数据的获取............................................................................................7

3.2扬子江隧道进口瓶颈路段交通流量数据分析..............................................................10

3.2.1扬子江隧道日交通量...........................................................................................10

3.2.2扬子江隧道24小时交通量.................................................................................11

3.2.3扬子江隧道进口直行与左右分流通行流量.......................................................12

3.3扬子江隧道交通基本特性..............................................................................................13

3.3.1扬子江隧道时间特征分布...................................................................................13

3.3.2扬子江隧道空间特征分布...................................................................................14

第四章 扬子江隧道通行能力及服务水平分析..........................................................................16

4.1扬子江隧道的基本道路条件..........................................................................................16

4.2扬子江隧道内通行能力与服务水平分析......................................................................16

4.2.1扬子江隧道内通行状态与通行能力...................................................................16

4.2.2扬子江隧道内服务水平分析...............................................................................17

4.3扬子江隧道进口瓶颈路段通行能力与服务水平分析..................................................18

第五章 基于瓶颈路段拥堵现状特性的优化方案与建议..........................................................19

5.1针对隧道具体出入口提出合理的诱导方案..................................................................21

5.1.1诱导分流的实施条件及原则...............................................................................21

5.1.2诱导分流区域的确定...........................................................................................21

5.1.3诱导分流路径的选取...........................................................................................21

5.2针对隧道内的交通设计和设施改善..............................................................................22

5.2.1隧道标志标线的改善建议...................................................................................22

5.2.2隧道内设施的改善建议.......................................................................................23

5.3交通信号配时分析优化..................................................................................................23

第六章 结论..................................................................................................................................26

致 谢........................................................................................................................................27

参考文献（References）..............................................................................................................28

第一章 引言

1.1研究背景及意义

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