선로용량 평가를 위한 미시적 열차 운행 시뮬레이션과 거시적 최적화 모형과의 통합적 접근법

초록

This study aims to evaluate the capacity enhancement effects of railway construction projects―such as the Pyeongtaek？Osong quadruple-track project―by applying the UIC 406？based capacity analysis method, which assesses how effectively a given timetable utilizes available infrastructure through timetable compression, in place of traditional formula-driven approaches such as the Yamagishi method. However, the UIC 406 methodology assumes that an actual timetable already exists and therefore cannot be directly applied during the design stage, where no operational timetable is available. Consequently, to assess the line capacity during the design stage, it is necessary to construct a representative timetable that reflects the preliminary operational plan and to evaluate the capacity based on the compression of this constructed timetable. To address this challenge, the study proposes an integrated approach that combines a microscopic train operation simulation with macroscopic optimization modeling for a capacity analysis in the design phase. In this integrated framework, the microscopic simulation provides fundamental operational parameters that serve as inputs to a macroscopic timetable-generation optimization model, while the resulting optimized timetable is subsequently refined and adjusted through the microscopic simulation approach. Using this integrated methodology, the study evaluates the capacity of the Pyeongtaek？Osong quadruple-track section.

키워드