Changes in Passenger Waiting Times due to Urban Freight Train Operations

We propose a stepwise methodology to analyze changes in passenger waiting times due to urban freight train operations. The methodology comprises defining freight train stopping patterns and travel times (Phase 1), calculating minimum headway between two consecutive passenger trains with a freight train (Phase 2), adjusting passenger train schedules and determining the number of freight trains (Phase 3), and evaluating passenger waiting times (Phase 4). Applying this proposed methodology to Seoul Metropolitan Subway Line 3 demonstrates that operating A/B pattern freight trains stopping at two stations with a ratio of 1:3 (freightpassenger) allows efficient urban freight train services without significant increases in current passenger waiting times.