| Design method of highway alignment consistency is a new kind of design method. Operating speed is carried on to evaluate highway alignment consistency in this paper. Calculating formula of operating speed on the horizontal and vertical section is brought out through kinetics of the kinetics of truck. Predicting model of operating speed is brought out , with considering about the factor influencing operating speed, which provides important foundation for designing and redesigning highway and have important reference value.This paper adopts Visual Basic 6.0 , compiles predicting model of operating speed and analyzes the consistency of a section of a highway, considering the shifting of practicing car. |