高速公路改扩建交通组织方案动态设计研究

发布时间：2018-06-27 00:46

本文选题：高速公路改扩建工程 + 交通组织方案　；参考：《长安大学》2015年硕士论文

【摘要】：我国经过二十多年的高速公路建设,目前一些高速公路已经接近或超过设计年限。许多高速公路上的交通量已经超过设计通行能力,出现了路基路面破坏或交通拥堵等现象。因此,对高速公路实施合理有效的改扩建,使其继续为社会和经济活动提供良好服务,是当前和今后一段时期内我国高速公路建设的主要任务和紧迫问题。我国最新颁布的《高速公路改扩建设计细则》(JTG/TL11-2014)提出了改扩建交通组织方案应进行动态设计的要求。本文在借鉴相关研究成果的基础上,结合《高速公路改扩建设计细则》(JTG/TL11-2014)和《公路养护安全作业规程》(JTGH30-2004),分析各种改扩建加宽形式的特点和适用性,并对高速公路基本路段的改扩建作业区进行界定和区段划分,依托京港澳高速驻马店至信阳段“四改八”改扩建工程实例,开展Vissim仿真可靠度研究,以Vissim为仿真平台,构建合理的评价指标与体系,针对不同交通量、大车占有率以及不同封道模式下的改扩建作业区进行交通组织方案动态设计。研究主要取得以下成果:(1)对改扩建作业区区段进行合理划分,为交通组织方案的动态设计奠定基础;(2)构建了改扩建作业区交通组织方案多指标评价体系,为不同交通量和大车率水平下的改扩建作业区交通组织方案动态设计提供理论依据;(3)基于作业区实际车速对Vissim期望速度分布曲线进行重新标定,提高了仿真可靠度;(4)针对封闭行车道模式下的改扩建作业区,研究确定了不同交通量和大车率情况下的作业区合理限速模式以及上游过渡区理想长度值;针对半幅封闭作业区,研究通过构建理论计算模型,确定了不同限速、不同中间带宽度和不同超高情况下的中央分隔带理想开口长度值,为不同道路交通条件下的改扩建作业区交通组织方案的设计提供指导性意见。研究成果与《高速公路改扩建设计细则》(JTG/TL11-2014)中提出的改扩建交通组织应进行动态设计的要求一致,对我国高速公路改扩建交通组织设计具有参考价值,对提高具体工程施工区路段的服务水平,保障交通安全具有重要意义。
[Abstract]:After more than 20 years of expressway construction in China, some expressways are close to or exceed the design years. The traffic volume on many freeways has exceeded the designed capacity, and there are many phenomena such as roadbed and pavement damage or traffic jam. Therefore, it is the main task and urgent problem of expressway construction in our country to carry out reasonable and effective reconstruction and extension to make it continue to provide good service for social and economic activities. JTG / TL11-2014, issued recently in China, puts forward the requirement of dynamic design for the traffic organization scheme of reconstruction and extension. Based on the relevant research results, this paper analyzes the characteristics and applicability of various widening forms of highway reconstruction and extension, combined with the Design rules of Expressway Reconstruction and extension (JTG / TL11-2014) and the Highway maintenance Safety Operation rules (JTGH30-2004). This paper also defines and divides the operation area of the reconstruction and extension of the basic section of the expressway. Relying on the example of the "four to eight" reconstruction and extension project between Beijing, Hong Kong and Macao High-speed Zhumadian to Xinyang, the research on the reliability of Vissim simulation is carried out, and the simulation platform is Vissim. A reasonable evaluation index and system is constructed, and the dynamic design of traffic organization scheme is carried out according to different traffic volume, vehicle occupancy rate and different road closure mode. The main achievements of the study are as follows: (1) reasonable division of the operation area for reconstruction and extension to lay the foundation for the dynamic design of the traffic organization scheme; (2) the establishment of a multi-index evaluation system for the traffic organization plan in the reconstruction and extension area. It provides a theoretical basis for the dynamic design of traffic organization scheme of the reconstruction and extension operation area under different traffic volume and heavy vehicle rate level. (3) based on the actual speed of the operation area, the desired velocity distribution curve of Vissim is recalibrated. The simulation reliability is improved. (4) the reasonable speed limit mode and the ideal length of the upstream transition area are determined under the condition of different traffic volume and heavy vehicle rate for the reconstruction and extension operation area under the closed carriageway mode. By constructing a theoretical calculation model, the ideal opening length of the central separator is determined under different speed limits, different intermediate band widths and different ultra-high conditions. It provides guidance for the design of traffic organization scheme in the operation area under different road traffic conditions. The research results are consistent with the requirements for dynamic design of traffic organization proposed in JTG / TL11-2014, which is of reference value to the traffic organization design of expressway reconstruction and extension in China. It is of great significance to improve the service level and ensure traffic safety in specific construction areas.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U491

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