Journal of the Korean Society for Railway (한국철도학회논문집)

The Korean Society for Railway (한국철도학회)
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A Deterministic Transit Assignment Model for Intercity Rail Network

지역간 철도의 결정적 통행배정모형 구축 연구

  • 김경태 (한국철도기술연구원, 물류표준화연구단) ;
  • 이성모 (서울대학교, 지구환경시스템공학부) ;
  • 권용석 (전주대학교, 토목환경공학과)
  • Published : 2008.12.30
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Abstract

The purpose of this paper is to propose a new transit assignment model for intercity rail networks. The characteristics of intercity rail are different from that of public transit in urban area. Line selection probability on route section is introduced to include the characteristics of intercity rail into transit assignment model. Network expansion is more simplified by a assumption line selection probability is externally given. The generalized cost is used to decide the volume of each transit line in most of existing transit assignment models. But, many variables have influence on the volume of each line such as time schedule of transit lines, inter-station distance, passengers' income, seasonal variation of demand and regional characteristics. The influence of these variables can be considered to decide the volume of each line by introducing line selection probability on route section. The tests on a small scale network show that the model proposed in this paper is superior to existing models for predicting intercity rail demand. Proposed model is suitable to consider the complicated fare structure of intercity rail and to draw inter-station demand directly as a result of assignment procedure.

본 연구에서는 도시권역의 대중교통수단과는 여러 가지 측면에서 차별화 되는 지역 간 철도의 특징을 반영한 대중교통 통행배정모형을 제시하였다. 경로구간 기반으로 대중교통 네트워크를 확장하고, 경로구간을 운행하는 노선의 선택확률을 통행배정모형 내에서 결정하는 것이 아닌 외부적으로 결정하는 방식을 적용하여, 직접 네트워크를 확장하는 방법보다 네트워크 확장 규모를 줄일 수 있었다. 지역간 철도의 특징을 반영할 수 있도록 적정한 가정을 통해서 경로구간 기반의 결정적 대중교통 통행배정모형과 해법을 제시하였다. 현실을 최대한 반영한 소규모 네트워크에서 기존의 대표적인 대중교통 통행배정모형과 비교한 결과 본 연구에서 제시한 모형의 예측력이 우수한 것으로 분석되었다.

Keywords

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