| Title |
Development of the Decision-Making System for National Highway Pavement Management |
| Authors |
도명식(Do, Myungsik) ; 권수안(Kwon, Sooahn) ; 이상혁(Lee, Sang Hyuk) ; 김용주(Kim, Yongjoo) |
| DOI |
https://doi.org/10.12652/Ksce.2014.34.2.0645 |
| Keywords |
포장관리시스템;공용성 모형;포장상태에 따른 속도변화모형;경제성 평가;의사결정지원 시스템 PMS;Deterioration model;Speed prediction model;Economic evaluation;Decision-making system |
| Abstract |
The conflict of opposing pedestrian traffic-flow in a subway station(made up of stair, passageway, and escalator) diminishes the convenience and mobility of its users. In addition, the station's efficiency would be negatively affected by the growth of delay and queue length in pedestrian facilities. As these phenomena have been resulted by the overlapping in pedestrian's traffic-line, the separation of it would alleviate these problems. For the criteria and methodology of separation, this paper has investigated the bi-directional queue length and delay on the entrance of each facility (stair, passageway and escalator). Since the pedestrian flow exists bidirectionally, we have used the weighted average by inflow rate for the delay value. For the optimization of the separation, the Genetic Algorithm has been utilized in order to minimize the delay. |