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Highway construction has been played an important role in Chinese economic development. A good design was a key factor to a successful project, and at the same time, the geometric parameters and mechanical parameters of asphalt pavement both were of great weight. In this paper, a model of semi-rigid base and asphalt pavement was established, and load response was calculated with BISAR on base of three-layer system, comparison of impact of different parameters on the response was carried out to get the discipline, and this will help the designers to optimize design.

This paper uses the technical of the VPD (Virtual Product Design) with the parallel coordination design, and the problem with the tradition design like in some link has been solved. It is possibly interrupt or brings disaster to the insufficiency which directly the entire design will carry on normally, and it proposed that the hypothesized product development design (VPD) the architecture key technologies, through the hypothesized product development design cycle analysis, confirms the VPD technology sophistication fully.