| Title |
Comparison of Relative Weights of Cost for Road-bed Construction and Energy on Life Cycle Cost of Railroad -in Case of Seoul-pusan High Speed Rail |
| Authors |
서선덕(Suh, Sunduck) ; 김정현(Kim, Jeong Hyun) |
| DOI |
https://doi.org/10.12652/Ksce.2014.34.4.1261 |
| Keywords |
철도노선 최적화;철도건설비;철도운영비;고속철도 Rail route optimization;Rail construction cost;Rail operating cost;High speed rail |
| Abstract |
The Fixed Area ARFs (Area Reduction Factors) method has limitations in providing exact information about spatial distribution due to the lack of enough density of rain gauge stations. In this study the storm-centered ARF was evaluated between frontal and typhoon storm events utilizing radar precipitation. In estimating storm-centered ARFs, in order to consider the horizontal advection, direction, and spatial distribution of rain cells, the rotational angle of rainfall of each rainfall event and the optimum areal rainfall within the spatial rain cell envelope was taken into account. Compared with the frontal storm, the ARF of typhoon storm shows narrow range of variability. It is noted that the ARFs of frontal storm increases with the rainfall duration, but those of typhoon storm shows opposite pattern. As a result the typhoon ARFs appear greater than frontal ARFs for 1~3 hours of duration, but less for more than 6 hours of duration. |