信息影响下考虑可靠性的方式分担与交通分配组合模型研究

发布时间：2018-05-23 10:47

本文选题：先进的出行信息系统 + 路网可靠性　；参考：《长沙理工大学》2015年硕士论文

【摘要】：交通网络是城市发展的命脉,高速发展的城市需要一个稳定、高效的交通系统。然而,实际交通系统的不确定性,出行者在出行过程中因信息缺乏而做出错误决策都会导致路网运行效率的急剧下降。为此,本文研究了在先进的出行信息系统环境中,以一定行程时间可靠性为约束的方式分担与交通分配组合模型。论文假定出行者对交通信息的获取来自先进的出行者信息系统(ATIS),该系统通过提供准确、高质量的交通信息来辅助出行决策。论文首先分析了信息对出行决策的影响,根据出行者信息获取能力的不同将其分为“有ATIS装置”和“无ATIS装置”两类,基于两类用户对路径行程时间的不同感知利用路网混合均衡理论建立了信息影响下的路径选择模型。进一步,论文分析了交通系统不确定性的来源,以随机供给路网为研究对象,在均匀分布的路段容量假定下给出了路径出行时间预算的计算模型。最后,论文在组合出行决策的层次选择框架下,假定“有装置”和“无装置”用户对路径及方式的感知误差均服从Gumbel分布,采用变分不等式技术,以出行时间预算为路径选择准则建立了信息影响下考虑一定行程时间可靠性约束的方式分担与交通分配组合模型。该模型能同时考虑信息系统的信息质量、用户的可靠度需求以及不同出行方式的吸引力对路径及方式选择的影响。论文进一步证明了该组合模型解的等价性并给出了模型求解算法。论文用测试路网开展了仿真分析,验证了模型和算法的有效性。
[Abstract]:Traffic network is the lifeblood of city development. A stable and efficient transportation system is needed for a city with rapid development. However, the uncertainty of the actual transportation system and the wrong decision made by the travelers in the travel process due to the lack of information will lead to a sharp decline in the efficiency of the road network operation. Therefore, in the advanced travel information system environment, the combined model of sharing and traffic assignment in a certain travel time reliability constraint is studied in this paper. The paper assumes that travelers' access to traffic information comes from the advanced traveller information system (ATIS), which assists in travel decision by providing accurate and high-quality traffic information. Firstly, the paper analyzes the influence of information on travel decision, and divides it into two types: "with ATIS device" and "without ATIS device" according to the different information acquisition ability of travelers. Based on two kinds of users' different perception of path travel time, a path selection model under the influence of information is established by using the road network mixed equilibrium theory. Furthermore, the paper analyzes the source of the uncertainty of the transportation system, taking the random supply road network as the research object, and gives the calculation model of the route travel time budget under the assumption of uniformly distributed section capacity. Finally, under the framework of hierarchical selection of combined trip decision, assuming that the perceived errors of both "with and without devices" users follow the Gumbel distribution, the variational inequality technique is used. Based on the route selection criterion of travel time budget, a combination model of mode sharing and traffic assignment with certain travel time reliability constraints under the influence of information is established. The model can take into account the information quality of the information system, the reliability requirements of users and the influence of different travel modes on the path and mode selection. This paper further proves the equivalence of the solution of the combined model and gives the algorithm of solving the model. The simulation analysis of the test network is carried out, and the validity of the model and algorithm is verified.
【学位授予单位】：长沙理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U491

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