Review Article

A Review and Prospect for the Complexity and Resilience of Urban Public Transit Network Based on Complex Network Theory

Table 3

A review for the dynamic resilience of single layered PTN.

Author and Study timeCase cityPTN type / Whether multilayered systems are consideredStation initial load definitionStation capacity definitionStation stateRule of failure load dynamic redistributionResilience measurement indicatorAttack strategyMajor contribution or conclusion

Ma et al.[99]
2011
GuiyangBus / NoDirectly define it as station betweennessStation capacity is proportional to station initial loadNormal state, Failure stateNo load redistribution, the dynamic characteristic is reflected in that the topology changes lead to the capacity of adjacent station becoming smaller, so its load carried by the previous moment may have a relative size updating with the capacity.Relative size of maximum connectivity cluster, Network efficiencyAttack one single station that has the largest loadWith the increase of station load tolerance parameter, the BTN resilience has been significantly improved, i.e., the network capacity can be enhanced by increasing the station designing capacity.
Zou et al.[100]
2013
FoshanBus / NoDirectly define it as station betweennessStation capacity is proportional to station initial loadNormal state, Failure stateShortest path redistribution calculated by Dijstra algorithmRelative size of maximum connectivity cluster, Network efficiencyAttack one single station that has the largest loadBy comparing the similarities and differences between the static resilience and the dynamic resilience, the stations with more important and extensive impact are identified.
Du et al.[101]
2015
LanzhouBus / NoStation weightDefine it as a nonlinear function, i.e., a chaotic Logistics mapNormal state, Failure stateNo load redistribution, the adjacent stations are affected by the failure station load, which is characterized by a coupled map lattice function, i.e., station status updates dynamically.Ratio of station cascading failuresAttack one single station that has the largest saturability, Attack one single station that has the largest degree, Attack one single station that is randomly selectedBy conducting parameter simulation of the coupled map lattice based cascading failures for the complex BTN with multi-edges, it found that the larger the coupled strength and the external disturbance value of the network are, the easier the cascading failures will be, and there is a clear threshold; the failure caused by the stations with the largest degree is most likely to trigger cascading failures.
Zhang et al.[69]
2016
JinanBus / NoDefine it based on station strength; additionally, set exponential type load definition control parametersStation capacity is proportional to station initial loadNormal state, Failure stateRedistribution based on the proportion of adjacent station capacityRatio of station cascading failuresAttack one single station that has the largest load, Attack one single station that has the second largest load, Attack one single station that has the fifteenth largest loadThe dynamic resilience model for weighted BTN under single station happening emergency is established, so as to getting that the strength of failure station, the station load tolerance parameter, and the station load distribution control parameter all have important influences on the dynamic resilience.
He et al.[102]
2016
BeijingBus / NoActual bus card passenger flow data fittingStation capacity is proportional to station initial loadNormal state, Failure stateTransfer route-based optimal path navigation strategy, i.e., the shortest path redistributionStructural integrity, Functional integrityAttack one single station that has the largest loadA path navigation strategy describing the passenger flow spreading of BTN is proposed, making the station load definition and the actual traffic value be basically the same.
Zhang et al.[32]
2018
JinanBus / NoDefine it based on station strength and considering the impact of the adjacent station; additionally, set exponential type load definition control parametersStation capacity is proportional to station initial loadNormal state, Failure stateUser equilibrium redistribution based on edge congestion effect (BPR road impedance function[103])Global ratio of cascading failures in a time step, Local ratio of cascading failures in a time stepAttack one single station that has the largest loadBy balancing the description accuracy and computational efficiency, a cascading failures model of weighted BTN considering congestion effect and user equilibrium evacuation is established. Additionally, based on simulation experiments, the dynamic characteristics of the three failure load redistribution patterns are compared, so that an effective control and optimization direction for BTN resilience is obtained.
Huang et al.[104]
2018
ShanghaiUrban rail transit station / NoDefine it as the passenger flow per unit area based on Fruin[105] service levelThe summation of the maximum service capacity and the maximum queuing capacity of the facility nodes in a unit areaNormal state, Failure stateUser equilibrium redistribution based on service chain congestion effect (BPR road impedance function)Maximum capacity of the entire stationAttack one single facility node that has the largest in-degreeBased on the analysis of the passenger flow service chain inside the urban rail transit station, the station ticket gates, escalators, platforms and other facilities are abstracted into an facility associated network, so that a load capacity calculation method for urban rail traffic station considering cascading failures is established.
Sun et al.[106]
2018
BeijingUrban rail transit / NoStation weight, i.e., Define it as the passenger flowDefine it as a nonlinear function, i.e., a chaotic Logistics mapNormal state, Failure stateRedistribution based on the proportion of connected edge weights between the failure station and its adjacent stationsCumulative global ratio of cascading failures in a time step, Global ratio of cascading failures in a time stepAttack one single station that has the largest strength, Attack one single station that has the largest degree, Attack one single station that has the largest betweennessBased on the attack simulation experiment, it can get that the damaged threshold of loop route is much smaller than a straight route. Additionally, observing the attacked loop route, the discrete degree of peak time and all station failure time are higher than straight route, meaning that controlling this failure is quite difficult.