阎良区(西安)校车运行的改进方案  

Yanliang District(Xi’an)School Bus Run Improvement Program

作　　者：杨颖博[1] 

机构地区：[1]西北大学数学系,陕西西安710127

出　　处：《科学之友（下）》2013年第6期112-115,共4页Friend of Science Amateurs

摘　　要：校车安全问题牵动着整个社会的稳定,因此,校车安全的行车路线的选择至关重要。致力于校车路线的制定(包括接送点的选取,以及车次、上车人数的分配)。具体方法是将影响行车安全的各种因素做量化处理,再通过调查统计,分配给各因素适当的比例,最后得出某一路段的危险参数——道路的权重,建立数学规划模型,并运用图论中的带全路径长度,Huffman树,拓扑排序(对其实施改良)等知识求解,得出不同路线分布(分为线形、树形以及图形路线)下的最优路径(安全路线)。最后以一个具体调研实例(新兴小学),对此方法进行验证,以求推广。School bus safety issues affecting the stability of the whole society,therefore,the safety of school bus route selection is critical.This article is committed to the development of school bus routes(including the transfer point selection,as well as the trips,the number of cars on the distribution).The specific method is the various factors that affect driving safety do quantized,and then through the survey,assigned to the proper ratio of each factor,the conclusion that the risk of certain sections of parameters-the weight of the road,the establishment of mathematical programming models and using graph theory with full path length,Huffman tree,topological sorting(improvement of its implementation)and other knowledge to solve,draw different route distribution(divided into linear,tree and graph line)under the optimal path(safe route).Finally,a specific research example(s new elementary school),this method of verification,in order to promote.

关 键 词：校车 规划模型 最优路径 HUFFMAN树 拓扑排序 

分 类 号：U491[交通运输工程—交通运输规划与管理]