本文選題：路網分區(qū)　切入點：拓撲結構　出處：《西安工業(yè)大學》2015年碩士論文　論文類型：學位論文

【摘要】：城市路網分區(qū)是指根據路網結構和交通流特性,選擇一條或幾條路徑將整個城市路網劃分為若干個交通區(qū)域,以提高路網的運行效率。國內外學者對路網分區(qū)問題進行了大量研究并取得諸多成果。在實際中,路網經常會發(fā)生堵塞,現(xiàn)有研究并沒有討論基于堵塞情形下的路網分區(qū)問題。因此,本文考慮任意路段都有可能發(fā)生堵塞的情形下,分別從路網拓撲結構抗堵塞能力和路網交通均衡分配抗堵塞能力2個角度提出路網分區(qū)效果的度量指標,并以分區(qū)效果最優(yōu)為目標,建立最優(yōu)分區(qū)路徑選擇模型和最優(yōu)分區(qū)路徑組合模型并進行求解,給出最優(yōu)分區(qū)路徑選擇方案和最優(yōu)分區(qū)路徑組合方案。論文的主要工作和成果如下。建立基于路網拓撲結構抗堵塞能力的最優(yōu)分區(qū)路徑選擇模型和最優(yōu)分區(qū)路徑組合模型并求解。針對路網中任意路段都有可能發(fā)生堵塞的情形,用路段堵塞后路網上最短替代路徑長度與堵塞前最短路徑長度的比值來度量路網拓撲結構的抗堵塞能力,進而從分區(qū)前后路網拓撲結構抗堵塞能力變化的角度,提出路網分區(qū)效果度量指標——基于路網拓撲結構的分區(qū)抗堵塞能力變化因子,即拓撲結構下k個子區(qū)域的平均路網抗堵塞能力與整個路網抗堵塞能力的比值；以分區(qū)效果最優(yōu)為目標,建立將城市路網劃分成2個和k個子區(qū)域的最優(yōu)分區(qū)路徑選擇模型和最優(yōu)分區(qū)路徑組合模型,并設計有效算法求解,給出最優(yōu)分區(qū)路徑選擇方案和最優(yōu)分區(qū)路徑組合方案。運用模型和算法對重慶市渝中區(qū)局部路網進行了實例分析。建立基于路網交通均衡分配抗堵塞能力的最優(yōu)分區(qū)路徑選擇模型和最優(yōu)分區(qū)路徑組合模型并求解。針對路網中任意路段都有可能發(fā)生堵塞的情形,用路段堵塞后路網上重新分配交通流導致的路網總出行時間與堵塞前路網總出行時間的比值度量路網基于交通均衡分配的抗堵塞能力,進而從分區(qū)前后路網交通均衡分配抗堵塞能力變化的角度,設計路網分區(qū)效果度量指標——基于路網交通均衡分配的分區(qū)抗堵塞能力變化因子,即路網交通均衡分配下k個子區(qū)域的平均路網抗堵塞能力與分區(qū)前整個路網抗堵塞能力的比值；以分區(qū)效果最優(yōu)為目標,建立將城市路網劃分成2個和k個子區(qū)域的最優(yōu)分區(qū)路徑選擇模型和最優(yōu)分區(qū)路徑組合模型,并設計有效算法求解,給出最優(yōu)分區(qū)路徑選擇方案和最優(yōu)分區(qū)路徑組合方案。運用模型和算法對重慶市渝中區(qū)局部路網進行實例分析。
[Abstract]:Urban road network zoning refers to the selection of one or more paths to divide the whole urban network into several traffic areas according to the road network structure and traffic flow characteristics. In order to improve the operational efficiency of the road network, scholars at home and abroad have done a lot of research on the problem of road network zoning and achieved a lot of results. The existing research does not discuss the problem of road network partition based on congestion. Therefore, this paper considers that any section of road is likely to be blocked. From the two angles of network topology anti-blocking ability and road network traffic equilibrium distribution anti-blocking ability, this paper puts forward the measurement index of road network zoning effect, and takes the optimal zoning effect as the goal. The optimal partition path selection model and the optimal partition path combination model are established and solved. The main work and results of this paper are as follows. An optimal partition path selection model and an optimal partition path selection model based on the anti-blocking ability of road network topology are established. Combine the model and solve it. In the case where any section of the road network is likely to be blocked, The ratio of the shortest alternative path length to the shortest path length before blocking is used to measure the anti-blocking ability of the road network topology structure, and then from the point of view of the change of the anti-blocking ability of the road network topology structure before and after the partition. The index of the effect of road network zoning is proposed, which is the variation factor of the anti-blocking ability of the area based on the network topology, that is, the ratio of the average anti-blocking ability of the k sub-region to the anti-blocking ability of the whole road network under the topological structure. Aiming at the optimal partition effect, the optimal partitioning path selection model and the optimal partitioning path combination model are established to divide the urban road network into two and k sub-regions, and an effective algorithm is designed to solve the problem. In this paper, the optimal route selection scheme and the optimal partition path combination scheme are given. The model and algorithm are used to analyze the local road network in Yuzhong District of Chongqing City. The optimal anti-jam ability based on the traffic equilibrium distribution of the road network is established. The partition path selection model and the optimal partition path combination model are solved. The ratio of the total travel time of the road network to the total travel time of the road network before blocking is used to measure the anti-jam ability of the road network based on the traffic equilibrium allocation. Then, from the point of view of the change of anti-blocking ability of road network traffic equilibrium allocation before and after the partition, the paper designs the measure index of road network zoning effect, which is based on road network traffic equilibrium allocation. That is, the ratio of the average anti-blocking ability of k sub-region to the anti-blocking ability of the whole road network before the partition is given under the traffic equilibrium distribution of the road network, and the objective is to optimize the effect of the area. An optimal partitioning path selection model and an optimal partitioning path combination model are established to divide the urban road network into two and k sub-regions, and an effective algorithm is designed to solve the problem. The optimal route selection scheme and the optimal partition path combination scheme are given, and the model and algorithm are used to analyze the local road network in Yuzhong District of Chongqing.
【學位授予單位】：西安工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：U491

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本文編號：1608355