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Simulation is a resonable method to research the impact of landscape on traffic safety. In this paper, two different charts of main control program of the simulation program and chart of main simulation program are researched; the simulation program was built by Visual Basic and Access Database. The impact of vehicle speed, radius of curved road and landscape position on the risk probability of the road were analyzed by simulation. The results showed: when radius of curved road are same, the risk probability of the road with high road design speed was smaller than that of low one, for example it was reduced about 41.7% when the road design speed is 80km/h than that is 60km/h; the risk probability of the road reduced about 58% at large radius curved road than small one when the landscape is in the same place and road design speed does not change.

Development method of simulation software of landscape affecting traffic safety in traffic system