BI-Level Programming 기법을 이용한 교통 네트워크 평가방법 연구

A BI-Level Programming Model for Transportation Network Design

  • 김병종 (한국항공대학교 항공교통물류학부) ;
  • 김원규 (한국항공대학교 항공교통물류학부)
  • 발행 : 2005.12.31

초록

본 논문에서는 교통시설투자 의사결정을 위한 네트워크 설계 모형이 제시되었다. 모형은 사용자 평형의 통행패턴을 예측할 수 있으면서, 링크의 설치 여부를 정하는 이산형 의사결정변수를 갖는 Bi-Level Programming 형태로 구축되었다. 제시된 모형의 장점으로는 사회적 비용을 감안한 투자 결정을 묘사했다는 점과 도로와 철도로 이루어진 네트워크에서의 평형 통행패턴을 예측할 수 있다는 점이다. 정수형 변수의 Bit 구조를 이용한 효율적인 해법 알고리즘이 개발되었다. 예제를 통하여 모형과 알고리즘의 유효성을 검증하였는데, 예제 결과에서 투자의 한계효과 감소현상을 발견하였다.

A network design model has been proposed. which represents a transportation facility investment decision problem. The model takes the discrete hi-level programming form in which two types of decision makers, government and travelers, are involved. The model is characterized by its ability to address the total social costs occurring in transportation networks and to estimate the equilibrium link volumes in multi-modal networks. Travel time and volume for each link in the multi-modal network are predicted by a joint modal split/traffic assignment model. An efficient solution algorithm has been developed and an illustrative example has been presented.

키워드

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