| Title |
Development and Evaluation of Smart Roundabout Using Connected Vehicle |
| Authors |
김회경(Kim, Hoe Kyoung) ; 이영빈(Lee, Young Bin) ; 윤칠용(Yoon, Chil Yong) ; 오윤표(Oh, Yun Pyo) |
| DOI |
https://doi.org/10.12652/Ksce.2014.34.1.0243 |
| Keywords |
회전교차로;커넥티드 차량;임계간격;미시적 시뮬레이션 모델;첨단교통정보시스템 Roundabout;Connected vehicle;Critical gap;Microscopic simulation;Advanced traveler information system |
| Abstract |
In this study, the resilient modulus test and Light Weight Deflectormeter (LWD) test were conducted to simulate the moving vehicle load for the evaluation of the internal failure of epoxy asphalt pavement. The Measured displacement in the resilient modulus test of epoxy asphalt concrete showed very little residual deformation under repeated loads unlike the conventional asphalt. Therefore, the test results were evaluated as a normal state due to its similarity with elastic deformation. The deflection results from the resilient modulus tests were converted to the surface deflection modulus and the normal range of surface deflection modulus was estimated applying LWD measurement of 1 SIGMA level. Internal failure of pavements were estimated using the suspicious failure range at $60^{\circ}C$ and hysteresis. Internal moisture penetration and a decrease in bonding were observed in partial areas at $140{\mu}m$ of surface deflection. However, the areas showed inflection points in the hysteresis. Field investigation by suggested criterion indicated a high degree of accuracy. |