Journal of Korean Society of Transportation (대한교통학회지)

Korean Society of Transportation (대한교통학회)
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Using Evolution Program to Develop Effective Search Method for Alternative Routes

진화 프로그램을 이용한 효율적인 대체경로 탐색방법 연구

  • CHOI, Gyoo Seok (Professor, Dept, of Computer Science, Chungwoon University) ;
  • SEO, Ki Sung (Professor, Dept, of Electronic Engineering, Seokyeong University) ;
  • PARK, Jong Jin (Professor, Dept, of Internet & Computer, Chungwoon University)
  • Published : 2002.04.01
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Abstract

This paper presents an effective alternative K-paths calculation method based on a Evolution Program (EP). We developed efficient genetic operators for path calculation. A major problem of the existing approach(similarities among the paths) can be resolved using EP's. The performance of the suggested method is evaluated and compared with the k-th shortest path for the virtual road network model by computer simulation. The results of computational experiments of the suggested method are found to be satisfactory in terms of the dispersion of alternatives.

도시 내 교통혼잡이 증가됨에 따라 최단경로 탐색방법뿐만이 아니라 동일 목적지까지의 여러 가지 경로(준 최단경로)를 제시해 줌으로써 교통량을 효과적으로 분산시킬 수 있는 대체경로 탐색기법에 대한 관심이 고조되고 있다. 본 논문에서는 대체 경로의 유효성을 평가하는 성능지표를 제안하고, 복수개의 우수해 탐색에 유리한 진화 프로그램에 기초한 효과적인 대체경로 탐색기법을 제시한다. 기존 방법(k-th 최단경로 방법)의 문제점이었던 대체 경로들간의 유사성이 제안된 방법에서는 해결된다. 가상 도로망을 통한 컴퓨터 시뮬레이션의 결과로서 제안된 방법이 기존 방법보다 교통량 분산(경로들간의 상이성)측면에서 훨씬 더 우수함을 확인하였다.

Keywords

References

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