高速公路立交变速车道长度及安全间距研究
发布时间：2018-07-31 10:39
【摘要】：随着我国国民经济的快速发展，高速公路的建设取得了卓越的成就。随着路网密度的增大，高速公路上互通式立交越来越多，，导致立交之间的间距难以满足相关规范的要求。如果互通式立交之间的间距过小，其交通安全性将难以得到保证。为了提高互通式立交的设计合理性和安全性，本文对互通式立交的安全间距进行研究。 首先对相邻互通式立体交叉的间距进行定义，并从路网密度、匝道几何特性、交通流特性、交通标志设置和驾驶舒适性等方面对此间距进行分析，把立交安全间距的研究分为加速车道、净间距和减速车道三部分。 然后通过对比国内外变速车道设置的规范和计算方法，结合国内车辆性能与交通状况，以大货车、小客车为研究对象分别对变速车道长度进行分析计算，提出了以主线与匝道设计速度为依据的变速车道长度推荐值。 其次通过对相邻立交段内变换车道和驾驶行为的分析，把高速公路相邻立交安全间距分为合流影响区和分流影响区，利用概率论和可插入间隙等理论，建立了高速公路立交安全间距的计算模型，并提出了相邻互通式立交安全净间距推荐值。 接着利用高速公路交织区通行能力的分析方法对互通式立交安全净间距进行系统的研究，得到了交织区内交织车辆、非交织车辆运行速度和服务水平，以交织车辆与非交织车辆速度差为安全标准，提出高速公路互通式立交安全净间距的推荐值。 最后利用本文的研究成果，对实际工程中的近距离立交进行安全性分析，具有一定的现实意义。
[Abstract]:With the rapid development of our national economy, highway construction has made remarkable achievements. With the increase of road network density, there are more and more interchanges on freeway, resulting in the gap between interchanges is difficult to meet the requirements of relevant codes. If the distance between interchange is too small, its traffic safety will not be guaranteed. In order to improve the design rationality and safety of interchange, this paper studies the safety spacing of interchange. First of all, the distance between adjacent intersecting is defined, and the distance is analyzed from road network density, ramp geometry characteristics, traffic flow characteristics, traffic sign setting and driving comfort, etc. The research on safety spacing of interchange is divided into three parts: acceleration lane, net distance and deceleration lane. Then, by comparing the specifications and calculation methods of speed change lane setting at home and abroad, combining the performance of domestic vehicles and traffic conditions, taking large freight cars and minibuses as research objects, the length of variable speed lane is analyzed and calculated respectively. Based on the design speed of main line and ramp, the recommended value of lane length is put forward. Secondly, through the analysis of the changing lane and driving behavior in the adjacent interchange section, the safe spacing of the expressway adjacent interchange is divided into the confluence impact area and the distributary influence area, and the theory of probability and pluggable gap are used. The calculation model of the safe spacing of expressway interchange is established, and the recommended value of the safety net spacing of the adjacent interchange is put forward. Then, by using the analysis method of the capacity in the interleaving area of expressway, the safe net spacing of interchange is systematically studied, and the running speed and service level of interleaved and non-interleaved vehicles are obtained. Taking the speed difference between interleaved and non-interwoven vehicles as the safety standard, the recommended value of the safety net spacing of expressway interchange is put forward. Finally, using the research results of this paper, the safety analysis of the close-distance interchange in practical engineering is carried out, which has certain practical significance.
【学位授予单位】：华南理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U491.223
本文编号：2155331
[Abstract]:With the rapid development of our national economy, highway construction has made remarkable achievements. With the increase of road network density, there are more and more interchanges on freeway, resulting in the gap between interchanges is difficult to meet the requirements of relevant codes. If the distance between interchange is too small, its traffic safety will not be guaranteed. In order to improve the design rationality and safety of interchange, this paper studies the safety spacing of interchange. First of all, the distance between adjacent intersecting is defined, and the distance is analyzed from road network density, ramp geometry characteristics, traffic flow characteristics, traffic sign setting and driving comfort, etc. The research on safety spacing of interchange is divided into three parts: acceleration lane, net distance and deceleration lane. Then, by comparing the specifications and calculation methods of speed change lane setting at home and abroad, combining the performance of domestic vehicles and traffic conditions, taking large freight cars and minibuses as research objects, the length of variable speed lane is analyzed and calculated respectively. Based on the design speed of main line and ramp, the recommended value of lane length is put forward. Secondly, through the analysis of the changing lane and driving behavior in the adjacent interchange section, the safe spacing of the expressway adjacent interchange is divided into the confluence impact area and the distributary influence area, and the theory of probability and pluggable gap are used. The calculation model of the safe spacing of expressway interchange is established, and the recommended value of the safety net spacing of the adjacent interchange is put forward. Then, by using the analysis method of the capacity in the interleaving area of expressway, the safe net spacing of interchange is systematically studied, and the running speed and service level of interleaved and non-interleaved vehicles are obtained. Taking the speed difference between interleaved and non-interwoven vehicles as the safety standard, the recommended value of the safety net spacing of expressway interchange is put forward. Finally, using the research results of this paper, the safety analysis of the close-distance interchange in practical engineering is carried out, which has certain practical significance.
【学位授予单位】：华南理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U491.223
【参考文献】
中国期刊全文数据库 前8条
1 贺玉龙,刘小明,任福田;城市快速路互通式立交的最小间距[J];北京工业大学学报;2001年01期
2 钟连德;孙小端;陈永胜;张杰;张国巍;;高速公路大、小车速度差与事故率的关系[J];北京工业大学学报;2007年02期
3 邵长桥;荣建;;加速车道长度计算模型及其影响因素[J];北京工业大学学报;2008年01期
4 钟连德;徐秋实;孙小端;贺玉龙;陈永胜;;高速公路立交安全影响区范围确定[J];北京工业大学学报;2009年06期
5 李爱增;李文权;王炜;;城市快速路互通立交最小间距[J];公路交通科技;2008年06期
6 龙科军;郑健龙;朱得志;周志刚;;城市立体交叉交通影响范围研究[J];中外公路;2006年01期
7 李嘉,方霞;高速公路出入口设计与安全性研究[J];中南公路工程;2003年02期
8 吴明先;潘兵宏;王佐;孔令臣;郭腾峰;;八车道高速公路互通式立交最小净距计算模型[J];长安大学学报(自然科学版);2012年04期
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