The Study On Urban Complex Greenway System Planning

The green-way of the center of metropolis belongs to the built environment.Due to the complexity of land-tension,type,and diversity of users,compared with regional greenway,it showed the limitation of construction condition,the compound of function and the complexity of the behavior patterns demand characteristic.Therefore,it is difficult to use traditional way to research theory achievement and the current study of the greenway in the center of city still exists gaps and myth.In addition,since 2014,the number of the construction of greenway in our country has increased.However,from the point of effect,its construction has revealed many problems.Therefore,it is worthwhile to construct a system of scientific,reasonable,and targeted greenway planning method in theory and in practice.This research adopts the approach of "characteristics-problems-logic-method" and the concept of "composite" throughout the thesis.Interpretate the systemic and complexity of urban green-way,clarify the connotation of the concept and characteristics and put forward the key problems urgently to be solved in the study.Then put forward strategies of compound use of space carrier and influence factors.Summarize the layout of urban greenway system and the law of planning and design features.Integrate lots of demand and influence factors and implementate to the quantitative index system,in order to build a reasonable and scientific evaluation mechanism and method system,realizing goals of the maximum intensificating land resources,meeting compound function demands and various behavior patterns and reaching the value of the function of greenway.This article mainly uses research methods of the case analysis and the combination of qualitative and quantitative.By selecting 20 mature cases which have been built in China and abroad,research carries out on five aspects: index of suitable construction,the influencing factors of layout,space carrier,functional structure,planning and design key points.Summarize laws of characteristics of the objects,in order to provide the scientific basis for methods of construction."Qualitation" is mainly manifested in the cognition of the characteristic of ontology the urban greenway,"Quantization" is mainly manifested in the research method,namely,the case study of coverage,service population,density and scoring mechanism and process of layout method to construct 4 categories of five sub-index.Using software of GIS and Depthmap,construct a quantitative model of greenway selection system.The difficulties of this study was to clarify the concept and characteristics of the urban green way.Based on the analysis of its systematicness and complexity,confirm how to balance these factors and to translate it into concrete index system,thus forming the common construction guidance standard of greenway and scientifically guiding practice.Theis combines a typical case of urban greenway planning system of green-island-lake district in foshan,using greenway-selection model to construct scientific greenway layout scheme,practicing theory research results,in order to guide and verify the validation of the urban greenway-selection scheme.In addition,combined with the characteristics of case site,clear the function orientation and structure of green way,put forward design guidelines,carry out section design and modification of the greenway,and complete specific design details of the recent construction.As a focus of greenway construction in China,the quantitative research,qualitative conclusion and establish of system construction of uban greenway contribute to analyse problems,to avoid the blindness of practice,providing support for related decisions.This thesis tries to explore the scientific and quantitative layout method of greenway selection,to sum up appropriate planning and design strategies of urban greenway,expecting to scientifically guide the practice of the urban green way.