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NTIS 바로가기大韓交通學會誌 = Journal of Korean Society of Transportation, v.33 no.4, 2015년, pp.379 - 392
유한솔 (한양대학교 교통.물류공학과) , 김남석 (한양대학교 교통.물류공학과)
Freight flow data in Korea has been collected for a variety of purposes by various organizations. However, since the representation and format of the data varies, it has not been substantially used for freight analyses and furthermore for freight policies. In order to increase the applicability of t...
핵심어 | 질문 | 논문에서 추출한 답변 |
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현행 화물 통계의 한계점은? | 우리나라의 화물 통계는 다양한 기관에 의해 다양한 목적으로 구축되고 배포되고 있다. 그러나 각 기관별로 통계 수집 목적과 발표되는 통계의 형식 상이하여 자료의 활용성이 매우 제한적인 한계를 지니고 있다. 각 목적에 따라 수집된 원시자료는 특정 항목을 기준으로 집합화(aggregated)된다. | |
최소비용흐름문제란 무엇인가? | 최소비용흐름문제(Minimum Cost Flow Problem,MCFP)는 최저 비용으로 물량을 모두 보내는 것을 목적함수로 하는 문제이다. 네트워크설계 문제가 허브의 위치나 개수를 정하는 문제라면, 최소비용흐름문제는 허브의 위치나 개수 등 주어진 네트워크의 물리적 형태가 바뀔 수 없다고 가정 하에 최소비용으로 화물을 배정하는 것이다. | |
화물 물동량은 무엇에 따라 구분할 수 있는가? | 화물 물동량은 수단(transport mode), 품목(commodity),기종점(O/D, P/C,접근)에 따라 구분할 수 있다. 본질적으로 수단, 품목, 기종점은 밀접한 관련이 있다. |
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