Host: Japan Association for Wind Engineering
Pages 183-184
Safety assessment is conducted considering the traffic. The vehicles in the traffic are divided into five vehicle types and simulated by five vehicle models. For each vehicle model, representative parameters are assigned, during which the side force coefficient and vehicle weight are generated randomly following properly defined probability distributions. Then traffic volume of 10000 vehicles with the given vehicle proportions of different vehicle types in reality is applied to calculate the overturning probability of the traffic. With this method, the effect of the vehicle proportion and vehicle speed on overturning probability of the traffic is investigated. In addition, the overturning probability of current highway traffic regulation rule is also studied. On the other hand, on-board pre-warning system is realized with a combination of the Characteristic Wind Curves, short-term wind velocity and direction prediction and risk analysis. For a given allowed overturning probability of the vehicle and considering the real-time observations of wind velocity and direction, the permitted vehicle speed is identified by this system.
