A new simulation-optimization approach for the circulation facilities design at urban rail transit station

Abstract

Width design of the urban rail transit stations circulation facilities is a vital issue. The existing width design approach failed in fully considering the essential factors such as fluctuation in passengers’ arrival process, fluctuation and state-dependence in passengers walking speed and the blocking when passengers’ demand exceeds the capacity of facilities. For this purpose, a PH-based simulation-optimization approach is proposed that fully considers the fluctuation, the state-dependence, Level of Service (LOS) and blocking effect. This novel approach provides automatic reconfiguration of the widths of circulation facilities by a concurrent implementation of a PH-based Discrete-Event Simulation (DES) model and the Genetic Algorithm (GA). The proposed PH-based simulation- optimization approach and the existing design approaches based on the exponential and deterministic models are applied to design the widths of circulation facilities. The results reveal that the circulation facilities designed by the proposed approach have larger widths. Similarly, increase in the SCV of arrival interval results in increasing the widths designed by the proposed approach increase while the widths of the other two approaches stay the same. The width designed of the proposed approach increase at faster rate than that of the other two approach when the passengers’ arrival rate increases.

Users’ Preferences on the Provision of Facilities for Mass Rapid Transit Sungai Buloh – Subang – Putrajaya Line (Mrt2) Stations

“…Scholars have found that improving the level of service (Ramos, Vicente, Passos, Costa, & Reis, 2019) and facilities of stations (Susanti, Soemitro, & Suprayitno, 2019) can engage daily commuters to utilise urban railway service. Furthermore, constantly maintained and occasionally upgraded stations can also encourage commuters to shift from driving to transits (Khattak, Jiang, Zhu, & Hu, 2017). Meanwhile, Loukaitou-Sideris and Peters (2017) suggest that station spatial connectivity (pedestrian connections, wayfinding strategies & outdoorindoor communal space), intermodal connectivity (interchange transport terminal, bike parking & storage lockers) and operational connectivity (coordination among agencies and public transport providers) are other key factors of a successful transport system.…”

Passenger Queuing Analysis Method of Security Inspection and Ticket-Checking Area without Archway Metal Detector in Metro Stations

“…Xu et al presented a methodology for modelling a single node (staircase, walkways, gate, hall, escalator) with unidirectional pedestrian flows as an M/G/C/C state-dependent or M/M/C/C queue [21]. Khattak et al proposed a PH-based simulation-optimisation approach that fully considers the fluctuation, the state dependence, the level of service (LOS) and the blocking effect [22].…”