交通运输系统工程与信息
交通運輸繫統工程與信息
교통운수계통공정여신식
JOURNAL OF COMMUNICATION AND TRANSPORTATION SYSTEMS ENGINEERING AND INFORMATION
2015年
2期
48-53
,共6页
李明高%杜鹏%朱宇婷%史芮嘉%冯旭杰
李明高%杜鵬%硃宇婷%史芮嘉%馮旭傑
리명고%두붕%주우정%사예가%풍욱걸
城市交通%复杂网络%换乘节点%网络运行%网络效率
城市交通%複雜網絡%換乘節點%網絡運行%網絡效率
성시교통%복잡망락%환승절점%망락운행%망락효솔
urban traffic%complex network%transfer nodes%network performance%network efficiency
换乘节点是城市轨道交通不同线路间转乘的必经场所,对城市轨道交通系统运行有重要影响。本文基于复杂网络理论,将平均路径长度、网络局部效率和网络全局效率作为网络运行效率的评价指标,研究了换乘节点比例、换乘节点衔接线路数及换乘节点分布与网络运行效率的变化关系。研究表明,网络平均路径长度随换乘节点比例、换乘节点衔接线路数增加呈幂函数降低;网络局部效率随换乘节点比例增加呈指数下降,网络全局效率随换乘节点比例增加呈对数增加且换乘效率越高,增长越明显;换乘节点衔接线路数的增加会降低网络局部效率,增加网络全局效率;换乘节点在各线路分布越均匀,网络全局效率越高。
換乘節點是城市軌道交通不同線路間轉乘的必經場所,對城市軌道交通繫統運行有重要影響。本文基于複雜網絡理論,將平均路徑長度、網絡跼部效率和網絡全跼效率作為網絡運行效率的評價指標,研究瞭換乘節點比例、換乘節點銜接線路數及換乘節點分佈與網絡運行效率的變化關繫。研究錶明,網絡平均路徑長度隨換乘節點比例、換乘節點銜接線路數增加呈冪函數降低;網絡跼部效率隨換乘節點比例增加呈指數下降,網絡全跼效率隨換乘節點比例增加呈對數增加且換乘效率越高,增長越明顯;換乘節點銜接線路數的增加會降低網絡跼部效率,增加網絡全跼效率;換乘節點在各線路分佈越均勻,網絡全跼效率越高。
환승절점시성시궤도교통불동선로간전승적필경장소,대성시궤도교통계통운행유중요영향。본문기우복잡망락이론,장평균로경장도、망락국부효솔화망락전국효솔작위망락운행효솔적평개지표,연구료환승절점비례、환승절점함접선로수급환승절점분포여망락운행효솔적변화관계。연구표명,망락평균로경장도수환승절점비례、환승절점함접선로수증가정멱함수강저;망락국부효솔수환승절점비례증가정지수하강,망락전국효솔수환승절점비례증가정대수증가차환승효솔월고,증장월명현;환승절점함접선로수적증가회강저망락국부효솔,증가망락전국효솔;환승절점재각선로분포월균균,망락전국효솔월고。
Transfer nodes, which are the place while transferring between urban rail transit lines, have great influence to urban rail transit network performance. In this paper, the average path length, network local efficiency and network global efficiency are proposed as the network performance indexes based on complex theory. Then, the effect of transfer nodes proportion, transfer nodes connecting lines and transfer nodes distribution on the urban rail transit network performance is studied. The results show that the average path length decreases by power relate to the transfer nodes proportion and transfer nodes connecting lines. The local efficiency decline by exponential as the transfer nodes proportion increases, while the global efficiency has logarithmic growth as the transfer nodes proportion increases. Transfer efficiency may affect the global efficiency and the higher the transfer efficiency is, the effect of the transfer nodes on global efficiency is more remarkable. Moreover, the local efficiency has inverse correlation with the transfer nodes connecting lines while the global efficiency has positive correlation with the transfer nodes connecting lines. The network performs well while the transfer nodes uniformly distributed in all lines.