| Title |
A Study on the Analysis of Urban Highways Traffic Accident's Impact Factors Based on Building Discriminant Models - In Busan Metropolitan City - |
| Authors |
정용화(Jeong, Yong-Hwa) ; 최양원(Choi, Yang-Won) |
| DOI |
https://doi.org/10.12652/Ksce.2014.34.4.1269 |
| Keywords |
도시고속도로;중상;교통사고;미시적분석;판별모델 Urban highway;Serious injuries;Traffic accident;Microscopic analysis;Discriminant model |
| Abstract |
In this study, flow characteristics and bed changes during a short term flood event were analyzed using the two-dimensional CCHE2D model for a meandering sand-bed river, the Naesung Stream. Flow and bed change simulation was carried along the three sub-reaches with sinuosity of 1.2, 1.6 and 2.2 for the 6-day flood event occurring in June 2011. The simulation results indicated that velocity variation due to flow concentration was larger along the sub-reach with the sinuosity less than 1.5 and bed erosion at the outside of the bend was increased by time. In the sub-reach with the sinuosity less than 1.5, the maximum flood discharge produced the maximum flow velocity over 1.6 m/s to 2 m/s locally. |