Abstract:3D road module, vehicle models database, and driver module were built in computer, and integrated into roadway– driver-vehicle simulation system. A forth class road in YunNan province in China was selected as analyzed course in our driving simulation, as well as a passenger car model, and a desired course of road center line, definition of driving behavior parameters considered over 70 percent driver in real word. Speed performance, complexity of the driving task, and comfort of driving and riding were respectively analyzed in this paper. The results show that, if consistency of design standard along road length was ensured, especially paying attention to control of straight sections length, lower class road with equilibrium speed also can be provided to road users; reverse loop and absent of spirals in lower class road would cause a high increases in peak value of steering wheel rev and change rate of lateral acceleration, which could lead drivers very flurry and riding uncomfortable; curve-based method should be attempt in alignment design more frequently, which seems to be the best solution to highway safety problems.
