Method for Restoring Urban Rail Transit Passenger Spatio-Temporal Paths in Consideration of Congestion
Journal Title: Urban Mass Transit - Year 2024, Vol 27, Issue 6
Abstract
Objective Passenger flow is the pillar for operation and management of urban rail transit. With the increasing development of urban rail transit, the demand for meticulous and accurate passenger flow analysis is getting higher and higher. To improve the accuracy of passenger flow allocation, it is necessary to study the process and method of passenger spatio-temporal path selection in urban rail transit. Method Firstly, according to the characteristics of urban rail transit, the shortest path algorithms between various ODs (original and destination) is improved based on the simplified network structure model of the transfer station network. Secondly, based on the relative and absolute thresholds for path cost allowable area, the effective physical path is screened. Then the spacio-temporal paths are constructed according to the data including the passenger entry and exit time, the walking time for transfer and the train schedule, and the set of feasible spacio-temporal paths is searched. Finally, with the simulation concept, the influence of train congestion on passenger boarding behavior is restored through time evolution, and passengers′ choices of spacio-temporal paths are reasonably determined from the microscopic level, and the spacio-temporal distribution state of passenger flow in the network comes into being with the superimposed individual spacio-temporal positions. Result & Conclusion The example of Nanning Metro shows that with inbound and outbound OD as the source data,the proposed method can output not only the traditional passenger transfer volume and sectional passenger flow volume, but also the elaborate passenger OD spacio-temporal data as well as the passenger flow on and off trains data, making up the gap of micro passenger flow data.
Authors and Affiliations
Jin CAI
Deformation Characteristics of Large Section Tunnel Surrounding Rock and Optimization of Tunnel Construction Scheme for Qingdao Metro Line
Objective The large section tunnel, due to flat shape and large span, usually adopts multiple steps and staged excavation. In the process of construction, the surrounding rock and the temporary support are repeatedly dis...
Research on the Impact of Metro Station Illuminance on Passengers′ Emotion and Visual Cognition
Objective Proper illuminance environment plays an important role in improving the service level of metro stations, ensuring the safety of passenger evacuation and promoting the sustainable development of public transport...
Practice of Defect Reconstruction in Embedded Rail Jointed Track on Large-span Steel Truss Bridge Ends
[Objective] To address the fractured joint bolt issues of embedded rail jointed tracks on large-span steel truss bridge ends, it is necessary to analyze the causes of the defects, design treatment plans, and explore re...
Research Progress on Structural Performance of Prefabricated Underground Station with Open-Cut Method
Objective At present, the structural system of prefabricated underground stations in China presents diversified development characteristics, but lacks systematic classification. Therefore, the research progress on the st...
Simplified Calculation Method for Existing Tunnel Settlement Caused by Shield Under-passing Based on Timoshenko-PasternakModel
Objective It is aimed to tackle the inefficient accuracy of traditional Euler-Bernoulli beam and Winkler foundation model in calculating settlement induced by shield under-passing existing tunnels. Method Based on the Ti...