Study Of Highway Landscape Visual Impact Assessment Based On Three-Dimensional Dynamic Model

With the development of highway construction in china, the road landscape design has received increasing attention. With the concept of landscape ecology enjoys popular, the requirements of highway landscape value is also getting higher and higher. At present, the highway constructions in developed countries in the world have been transferred to improve the road function, traffic safety and comfort, impact of environment and cultural around the road. In recent years, Highway construction in China pays more attention to the highway landscape design. While paying attention to the highway landscape design, highway landscape evaluation was put on the agenda.This paper describes the landscape history and summarizes the highway landscape and visual assessment. On the basis of a lot of information landscape evaluation, the paper summarized the highway landscape evaluation method and the advantages and disadvantages of various evaluation methods. These provide the basis for evaluation of the visual landscape for the paper. The paper started the visual characteristics of road users, analyzed of the highways landscape visual characteristics, make researches of visual coordination between the landscape and road users.In the evaluation process, the paper firstly analyzed highway landscape elements. According to various elements, we established the three-dimensional dynamic simulation model. On the basis of three-dimensional model, the paper studied the highway landscape elements and determined factors for highway landscape visual impact assessment. The paper pointed the Highway Landscape Coordinate as standards for the evaluation of the highway landscape visual impact assessment system. Finally, the paper use the NanYang WanPing Highway Landscape as an example, make evaluation of the highway landscape visual effects.The visual landscape evaluation is based on road user's view and the three-dimensional model, then analysis the landscape visual factor to quantify the ultimate visual landscape coordination. Evaluation abandons the complex of the previous evaluation method, based on "road users" sense of the evaluation that the main goal value judgments. This method is strong, simple, and easy to achieve the goal of evaluation.