基于仿真的物流园区规划及交通影响分析

发布时间：2018-06-25 22:59

本文选题：物流园区 + 布局规划　；参考：《武汉理工大学》2013年硕士论文

【摘要】：面对大规模的物流园区规划热潮,定量化地分析、评价和优化物流园区布局方案成为亟待解决的问题。目前国内较多的是对物流园区规划某一部分进行定性分析,缺乏定量和整体研究,造成内部结构脱节,如确定物流园区交通系统方案时忽略了它与功能区之间的关系,导致物流园区内道路交通量远远超过设计值或低于设计值,运营过程中出现了空间不足、集疏运交通不畅等问题。针对物流园区规划中的不足,在系统理论的指导下,本论文基于元胞自动机理论建立了更符合实际情况的交通模型,准确地分析了物流园区内道路通行能力,结合BP神经网络得出物流园区内道路设计方法；根据物流园区功能布局模型的普遍性和特殊性,采用遗传算法和计算机仿真技术建立了多目标的功能布局通用优化模型,并结合实际案例对规划设计阶段所涉及的关键性问题进行了仿真试验研究。论文主要工作包括以下内容： (1)通过建模深入分析了物流园区的交通特性,强调了其与城市道路交通系统的不同,并从交通流、密度、平均速度三者之间的关系图归纳了影响物流园区内部道路交通系统的主要因素。 (2)建立了多目标的物流园区功能布局模型,分析了各功能区之间的作业流程及相互关系,借助遗传算法和现代仿真技术,研究了物流园区功能布局模型的优化方法和模块组成。 (3)以物流园区内部交通系统为研究对象,基于元胞自动机理论提出了更符合园区交通特性的混合交通流模型,分析了物流园区集疏运系统的复杂性,并结合BP神经网络及其改进算法研究了物流园区内部道路设计方法。 (4)基于Em-Plant仿真平台建立了物流园区内部结构模型,包括功能区布局模块、装卸搬运设备模块、交通系统模块,分析了各子系统的组成和实施过程,提炼了物流园区内车辆行驶路径及出入口设置原则。本文建立了物流园区功能布局通用优化模型,开发了内部道路设计实用方案,不仅为物流园区布局规划设计提供了实用工具,还验证了模型与算法的可行性和有效性,具有一定的工程实用价值和理论价值。
[Abstract]:In the face of the large-scale logistics park planning boom, quantitative analysis, evaluation and optimization of logistics park layout has become an urgent problem. At present, some part of logistics park planning is analyzed qualitatively in our country, and the lack of quantitative and overall research results in the disconnection of internal structure, such as neglecting the relationship between logistics park transportation system and function area when determining the transportation system plan of logistics park. As a result, the traffic volume in the logistics park is far more than the design value or lower than the design value, there are some problems in the operation process, such as lack of space and traffic unobstructed. Under the guidance of system theory, this paper establishes a more practical traffic model based on cellular automata theory, and analyzes the road capacity of logistics park accurately. According to the universality and particularity of the functional layout model of logistics park, the general optimization model of multi-objective functional layout is established by using genetic algorithm and computer simulation technology. Combined with practical cases, the key problems involved in the planning and design phase are simulated and studied. The main work of this paper is as follows: (1) the traffic characteristics of the logistics park are deeply analyzed by modeling, and the difference between the logistics park and the urban road traffic system is emphasized, and the traffic flow and density are analyzed. The relationship between the average speed and the average speed induces the main factors that affect the road traffic system in the logistics park. (2) the multi-objective function layout model of the logistics park is established. Based on the analysis of the operation flow and the relationship among the functional areas, the genetic algorithm and the modern simulation technology are used. The optimization method and module composition of the logistics park functional layout model are studied. (3) taking the internal transportation system of the logistics park as the research object, Based on the cellular automata theory, a hybrid traffic flow model is proposed, which is more consistent with the traffic characteristics of the park, and the complexity of the distribution system of the logistics park is analyzed. Combined with BP neural network and its improved algorithm, the road design method of logistics park is studied. (4) based on Em-Plant simulation platform, the internal structure model of logistics park is established, including function area layout module, loading and unloading equipment module. In the traffic system module, the composition and implementation process of each subsystem are analyzed, and the principles of vehicle routing and the setting of entrance and exit in the logistics park are refined. In this paper, a general optimization model of logistics park functional layout is established, and a practical scheme of internal road design is developed. It not only provides a practical tool for layout planning and design of logistics park, but also verifies the feasibility and validity of the model and algorithm. It has certain engineering practical value and theoretical value.
【学位授予单位】：武汉理工大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU984.13;U491

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