Study On Landscape Evaluation And Improvement Of Urban Overpass In Zhengzhou

The process of urbanization has led to the rapid development of urban transportation.The overpass emerged as the times require,but the construction of its landscape is relatively lagging behind.However,the demand for the public space of the overpass is increasing,and the quality of the overall environment of the overpass is becoming higher and higher.There are many related studies on the landscape of urban overpass.Most of them focus on the affiliated green space landscape of the overpass and the utilization of the space under the overpass.This paper takes it as the research object that's 25 Interchange overpass in and within the Third Ring Road of Zhengzhou.This paper focuses on the spatial utilization,landscape culture,spatial vitality,spatial behavior and overall landscape evaluation of city overpass.Analyze and summarize the existing problems and causes based on the overall investigation of the landscape status in zhengzhou.It can be find that problems such as existing different levels of landscape construction,drab space utilization form under the overpass,lack of cultural connotation and geographical,lack of communication and interaction,and the plant configuration is unreasonable,late management is not in place and so on.Based on the Analytic Hierarchy Process(AHP),the landscape assessment and analysis of the overpass landscape in Zhengzhou City was carried out.Following the principle of scientificity,systemic,combination of quantitative and qualitative,and maneuverability,these evaluation factors,including plant species diversity,structure of the plant richness,plant morphology,overpass landscape architecture,affiliated green space landscape,landscape culture,environment coordination,accessibility,serviceability and site diversity were selected to establish an overpass landscape assessment system.Finally,5 overpasses with good landscape construction and representativeness were selected for evaluation.As for the problems existing in the overpass landscape of Zhengzhou,the author puts forward the landscape improvement strategies such as increasing the landscape elasticity,improving the pedestrian system,optimizing the spatial utilization form,enriching the landscape cultural connotation,rationally arranging plants,and strengthening the post-management.Finally,it proposes the design principles applicable to the overall landscape of Zhengzhou Overpass.