新增路段对道路交通网络性能的影响研究

发布时间：2018-02-22 15:06

本文关键词： 新增路段最大流网络总距离交通均衡分配　出处：《西安工业大学》2013年硕士论文　论文类型：学位论文

【摘要】：交通网络扩张是缓解交通压力的有效手段,而在网络上增加新的路段是交通网络扩张的主要方式,那么如何新增路段以及如何度量新增路段对交通网络性能影响具有重要的研究意义。现有关于网络新增路段的研究主要分析了路段增加后网络拓扑结构(如出行距离)的变化,实际上,无论是出行者还是交通管理部门关心的不仅仅是新增路段后出行距离的变化,还关心整个路网上的单位时间内通过的最大交通量(网络最大流)以及网络上的总出行时间等交通网络性能指标的变化,而现有研究并无涉及,针对以上不足,本研究从网络拓扑结构和网络最大流、网络拓扑结构和网络交通流相结合2个角度,提出路网新增路段对交通网络性能影响的度量指标,并给出指标定义与算法；然后设计路段增加的原则并给出相应算法；最后以成都市局部网络为例,验证不同原则下增加路段对交通网络性能的影响,为交通管理部门制定路网路段的增加策略提供依据。论文的主要工作和创新性成果如下。从网络最大流和网络拓扑结构相结合的角度提出新增路段对交通网络性能影响的度量指标——网络最大流关键新增边(FCAE),即新增路段后整个网络上点对间最大流之和与未新增路段整个网络上点对间最大流之和的差值最大的边；以及网络总距离关键新增边(DCAE),即新增路段后整个网络上点对间网络最短路径长度之和与未新增路段整个网络上点对间网络最短路径长度之和的差值最大的边,并设计以上两个指标的算法。然后给出两个增边原则：FCAE增边原则,即在当前网络所有备选边中选出网络最大流关键新增边(FCAE)并增加到网络中,以及DCAE增边原则,即在当前网络所有备选边中选出网络总距离关键新增边(DCAE)并增加到网络中。最后以成都市成华区局部交通网络为例,讨论以FCAE增边原则逐步增加路段后随着网络最大流增加导致的网络总距离的变化,以及以DCAE增边原则逐步增加路段后随着网络总距离减小导致的网络最大流的变化。结果表明：在网络备选边中任取10条为1组共6组的情形下,以FCAE增边原则逐步增加路段后随着网络最大流增加导致的网络总距离逐渐减小；以DCAE增边原则逐步增加路段后随着网络总距离减小导致的网络最大流逐渐增大。从交通均衡分配和网络拓扑结构相结合的角度提出新增路段对交通网络性能影响的度量指标——网络最优通行时间关键新增边(TCAE),即新增路段后整个网络上总出行时间与未新增路段整个网络上总出行时间的差值最大的边,并设计指标算法。然后给出TCAE增边原则,即在当前网络所有备选边中选出网络最优通行时间关键新增边(TCAE)并增加到网络中。最后以成都市武侯区局部交通网络为例,讨论以TCAE增边原则逐步增加路段后随着网络最优通行时间减小导致的网络总距离的变化,以及以DCAE增边原则逐步增加路段后随着网络总距离减小导致的网络最优通行时间的变化。结果表明：在网络备选边中任取10条为1组共6组的情形下,以TCAE增边原则逐步增加路段后随着网络最优通行时间减小导致的网络总距离逐渐减小；以DCAE增边原则逐步增加路段后随着网络总距离减小导致的网络最优通行时间逐步减小。
[Abstract]:Traffic network expansion is the effective means to ease the traffic pressure on the network, and increase the new road is the main way of traffic network expansion, has important significance that how to add a new section of the road and how to measure traffic network performance. The existing studies on the effects of new road network mainly analyzes the road network topology increases (such as travel distance) changes, in fact, whether it is concerned with the traffic management department or who is not only the change in distance to travel new roads after the maximum amount of traffic through the road network within the care units (the maximum flow) and changes on the network total travel time and traffic network performance index but, existing research does not involve, in view of the above shortcomings, this study from the maximum flow of network topology and network, network topology and network traffic flow. In 2 aspects, put forward new measures of road section of the traffic network performance, and the definition and algorithm index; then design road principle and the corresponding algorithm is given; finally to Chengdu local network as an example, increase road traffic impact on the network performance verification of different principles, provide the basis for increasing strategy area road network for traffic management departments. The main work and innovation are as follows. The influence of new sections on traffic network performance from the maximum network flow and network topology structure of the combination of the angle measurement indexes, maximum flow network (FCAE), the new side of new road after the point on the network between the maximum flow and no new sections of the whole network on the difference between the maximum and the maximum flow of the boundary; and the total distance network (DCAE), the new side of new road after all A point to point network network shortest path length and no new sections of the entire network to the maximum difference between network shortest path length and the boundary, and the design of the above two indexes. Then the algorithm gives two principles: FCAE add edge edge addition principle, namely all options in the current network the edge of selected key network maximum flow added edge (FCAE) is added to the network, and DCAE by side principle, namely in the current network of all alternative edge selected total distance network key added edge (DCAE) is added to the network. Finally, taking Chengdu city of Chenghua District local traffic network as an example, to discuss the change of the total network the distance to the edge of FCAE increased gradually increase with the principle of road network maximum flow increasing, as well as DCAE increased gradually increase after the road side principle with the change of the maximum flow of network network due to the reduction of the total distance. The results showed that: in the preparation of the network Select the side taken 10 to 1 group 6 group cases, the total network distance to FCAE increased gradually increase with the principle of side section of the maximum flow of network increases gradually decreases with DCAE increasing; side principle gradually increased with the maximum flow of network link network due to the reduction in the total distance measurement index increased gradually. The influence of new sections on traffic network performance from the network topology and traffic equilibrium point of the combination of the optimal network access time (TCAE), the new key side of new road after the entire network total travel time and without the added edge maximum difference in total travel time of the sections of the entire network, and design the index algorithm. Then, TCAE side principle, namely in the current network side selects all alternative optimal network traffic time key added edge (TCAE) is added to the network. Finally, taking Chengdu city of Wuhou District local traffic network Network as an example, to discuss the principle of TCAE increased gradually increase after the road side with optimal network access time reduces the change caused by the network distance, as well as DCAE increased gradually increase after the principle of edge sections with the change of network optimal total distance network due to the reduction in the passage of time. The results showed that: in the network side choose 10 options a 1 group of 6 groups of cases with TCAE increased gradually increased with the principle of side road network optimal access time reduces the network distance to gradually decrease with DCAE increasing; side principle gradually increased along with the network road after the optimal total distance of the network due to the reduction in the passage of time gradually decreases.

【学位授予单位】：西安工业大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：F512

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