Research On Accessible Design Of Three-dimensional City Traffic System

With the intensification of urban land use and the increase of urban traffic pressure,the construction of new urban areas in China is solving complex urban traffic problems through three-dimensional citie concept.Secondly,the construction of barrier-free environment,especially the construction of barrier-free transportation,has received more and more attention in the construction of new urban areas.However,the existing urban traffic barrier-free design strategy is still mainly aimed at two-dimensional cities.There is a lack of analysis of the demand for three-dimensional cities,and the design method lacking systematic strategies cannot meet the traffic accessibility requirements.This paper takes the three-dimensional city as the research object,and uses the systematic design method to analyze the characteristics of the three-dimensional city,deconstruct the traffic barrier-free system,and explore the design strategy suitable for the barrier-free needs of the three-dimensional city.Provide a reference for this type of urban design.This paper starts with the application of crowds,urban development,structural characteristics and traffic barrier-free status in three-dimensional cities,discusses the traffic accessibility requirements of three-dimensional cities,and analyzes the experience and methods of three-dimensional urban traffic barrier-free design in other countries and regions.Then,analyze the elements of the three-dimensional urban traffic accessibility system.On this basis,try to propose overall design strategy of three-dimensional urban traffic barrier-free design,including macro,meso and micro levels,include accessible transportation network organization,Accessible node design,accessibility configuration etc.On the basis of the design strategy,this paper selects a new urban district in Shenzhen as the representative of the three-dimensional city,and optimizes the design of traffic barrier-free system,provides ideas and reference methods for other three-dimensional urban traffic barrier-free design.