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  • COMPUTATIONAL MODELING AND SIMULATION TECHNIQUES FOR MANAGING RAIL–URBAN INTERFACE CONSTRAINTS IN METROPOLITAN TRANSPORTATION SYSTEMS
  • https://doi.org/10.63125/pxet1d94Copy DOI Icon

COMPUTATIONAL MODELING AND SIMULATION TECHNIQUES FOR MANAGING RAIL–URBAN INTERFACE CONSTRAINTS IN METROPOLITAN TRANSPORTATION SYSTEMS

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Abstract

Rail–urban interface constraints in metropolitan transportation systems reduce reliability and safety because dense stations, corridor conflict points, and community exposure can turn small disruptions into network-wide delays and crowding. This study examined whether computational modeling and simulation capability (CMSC) improves constraint-management effectiveness (CME) in an enterprise-scale metro rail case were cloud and enterprise analytics support scenario testing and decisions. Using a quantitative, cross-sectional, case-based design, a 5-point Likert survey was administered to N = 312 professionals from operations/control (26.3%), planning/timetabling (20.5%), station management (17.9%), engineering/maintenance (19.9%), and safety/risk (15.4%); 41.0% were direct model users and 37.8% indirect users. Key variables were rail–urban interface constraint severity (RICS), CMSC, decision integration (DI), and CME. Data screening showed mean missingness of 1.8% and Harman single-factor variance of 32.6%. Reliability was strong (α: RICS .88, CMSC .91, DI .87, CME .90). The most severe constraints were station crowding/circulation (M = 4.21, SD = 0.62) and peak dwell-time variability (M = 4.08, SD = 0.67). CMSC was moderate-high (M = 3.78, SD = 0.64), with scenario analysis strongest (M = 3.92) and validation weakest (M = 3.49). CMSC and DI correlated positively with CME (r = .62 and .58; p < .001), while RICS correlated negatively (r = −.41; p < .001). Regression was significant (R² = .51): CMSC (β = .38) and DI (β = .29) increased CME, and RICS reduced it (β = −.17); CMSC benefits were stronger at higher DI (ΔR² = .03). Implications emphasize station-area actions, stronger validation governance, and institutionalized use of simulation outputs in routine decisions.

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