| By the end of 2010, the total mileage of Chinese highway network has reached 3.95 million kilometers, including 65 thousand kilometers of express way, which ranks the second in the word. In the late 80s, personal car began to emerge in china, while the number has been increased to 70 million by 2010. Nowadays people come to be unsatisfactory with the road merely as a mean of transportation, and begin to concern more about the landscape along the road. The foreign countries have already had more than 70 years' history to investigate the road landscape, and achieve some success in this field, which improve the satisfactory of the road users enormously. Presently, the investigating of road landscape is developing vigorously in china. Due to a late starting, many problems of road landscape in our country need to be solved urgently, which include the field of basic theories and applications. To contribute to the development of road landscape in our country, this paper describes the investigation of the basic theories and applications based on the aesthetic subject and evaluation approach.Firstly, this paper studies the preference and difference and dynamic visual features of the aesthetic subject, and then investigates the current condition of the subjectivity of evaluation index system and the lack of valid examination, and put forward the solutions in the end. The degree of public participation has always been a hard problem that disturbs the investigators. To solve it, the paper successfully incorporates the theory of customer satisfaction in economics with road landscape evaluation. Finally a new design approach of road landscape incorporated with concept of environment protection is presented. The following are the main work and achievements.1. The development process of visual carrier of aesthetic subject is obtained based on the literatures of road landscape at home and abroad. From initial landscape symbols to paper photos to today's digital pictures, with the development of them, the research means are improved from on-the-spot investigation to indoor questionnaire survey until to now network survey. After this study, this paper investigates the preference and difference of the aesthetic subject through the photos of Yu-Zhan Expressway in Guangdong Province and concludes that the aesthetic subject prefer more of the landscape with better naturalness, especially the water landscape. This conclusion is consistent with the research at abroad and provides a theoretical reference to enhance the level of highway landscape construction. The study also found that the aesthetic subject of different degree, gender, age and regions have no significant perception difference, this basic theory provides a theoretical support of more in-depth study for later researchers.2. Based on the dynamic vision of aesthetic subject referring to road landscape, and considering the economic capability, the researcher adopts the "on-board digital camera isometric change control system" developed by South China University of Technology road engineering institute. Further study finds that under the condition of dynamic vision, the green belt area in close range has the largest effect of aesthetic subject. This conclusion provides a theoretical support of road landscape for highway construction and environmental protection department, and also sets a precedent for road landscape evaluation researchers of making use of self-study equipments in research.3. Application of mathematical methods to the present road landscape evaluation filed include describe factor method and analytic hierarchy process (AHP) and fuzzy comprehensive evaluation method, etc. however, those methods have major defects in subjective strong and index validity uncertain in the aspect of determining the evaluation index system of highway landscape. In this paper, study the possibility of applying the factor analysis method to quantitative determining the evaluation index system of highway landscape, and the application of one landscape road proves that it has good application. Finely, using the structural equation tests the validity of this index system. This research makes up the defect of strong subjectivity and uncertain validity in present road landscape evaluation index.4. Though the construction of road landscape severs the public, how to let ordinary people to understand the strong professional landscape and visual impact assessment, to improve public participation evaluation effect has been the difficult problem in highway landscape study during the landscape evaluation process. This paper researches introduction the customer satisfaction theory in economics to road landscape evaluation and also studies it actual result in road landscape evaluation. In this paper, firstly we briefly look back on the origin and development of the customer satisfaction theory and customer satisfaction model and introduce those theories to road landscape evaluation. According to public satisfaction construct with public satisfaction oriented highway landscape evaluation model, presenting the relationship between public satisfaction and road landscape evaluation. Though road landscape example, apply index system which pass through the reliability and validity test writing into "highway landscape evaluation satisfaction questionnaire”and data analysis proves the feasibility and the rationality of this model. Finally for this landscape further improve we apply SWOT analysis (strong and weak analysis) method and provide a quantitative, scientific advice.Thereby solve the hard problem of the depth of the public participating in highway landscape evaluation, and also provide theory and practical support for future public more widely and deeply being involved in highway landscape evaluation.5. Blending environmental protection concept in highway landscape design is one of hot spot in current road landscape research. Guangzhou south China rapid trunk three phase as research object, build highway landscape evaluation index system and evaluation model which fuse the concept of environmental protection, and use AHP method to calculate and analyze model criterion layer, the son of rule layer, index layer. Results show that the first effect is its sound environment, and the second effect is the naturalness and vividness in road landscape, and light environment along the road and service of road landscape is the last effect. Field investigation index layer the score of each factor, SWOT analysis express landscape of Guangzhou south China rapid trunk three phase lacking of advantages, the advantages including landscape open cut tunnel, the green coverage ratio along the road and architectural features along, est. The disadvantage include road area natural landscape beauty,the influence of noise on sleep, the influence of noise on spirit, the influence of noise on everyday life and measure the noise along the road. Also management department should first pay attention to disadvantage area improvement. In the last part of this paper, focusing on studying public senses of commonly used the measure of noise proof, and the results show that open cut tunnel has got citizens recognition in the aspect of beauty, security, comprehensive cognitive. |
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