Research On The Walkability Quantitative Evaluation In Historical Districts With The Mode Of "Parking+Walking"

With the deepening of the concept of sustainable development,people began to pursue walkable street space,especially the historical district with strong cultural atmosphere.Reviewed the development of street walkability,relevant scholars have gradually changed from perceptual cognition to more rational quantitative research on street walkability.Nowadays,under the background of the Internet,various quantitative research tools and massive city data have opened the door to quantitative research on street walkability.This article had attempted to build a walkability evaluation system for historical blocks based on a quantitative research framework,used big data tools to quantitatively evaluate the walkability of historical blocks.This paper was divided into five parts.The first part has introduced the new requirements for the protection of historical blocks in the current scientific background.By combing the development context of walkable streets and the protection and development of historical blocks,we believed that there was currently no quantitative research method for street walkability based on the characteristics of historical blocks.In the second part,we have used the "parking + transfer" model and used the analytic hierarchy process to establish the walkability of the historical block under the "parking + walking" mode with the three factors of "parking facility accessibility","street vitality" and "street quality" Evaluation system,referred to the current mainstream evaluation method to select the evaluation content.In the third part,we used big data to quantify the distribution of parking facilities and electric vehicle public charging piles,used point of interest data to quantitatively analyze street vitality,combining street view picture data with computer recognition technology,and analyzed green view rate,day view rate and street view picture Street color harmony to quantify the street environmental quality.In the fourth part,after confirming the evaluation system and the corresponding evaluation factors,an empirical study was finally carried out by taking the representative historical block of Wuhan as an example.The study has found that the evaluation system was relatively operable and could intuitively respond to related issues.At the same time,we have believed that in the area of the August 7th meeting,parking facilities generally meet the current needs,but there were problems such as uneven parking space distribution and the lack of public electric vehicle charging piles;Streets had high vitality,but some streets have lacked greening facilities such as street parks;in terms of street quality,most streets have had good natural landscapes,with more suitable green visibility and sky visibility,but the street construction environment was poor.The architectural colors on both sides of the street were not harmonious,causing visual pollution that seriously affects the overall space quality.In view of the lack of public charging piles for electric vehicles and the low color harmony found in the research,we have analyzed the causes of such problems based on the actual situation of historical blocks and specific cases,and proposed corresponding responses to the problems that occurred Solution to guide the construction of historical blocks with high walkability.The last part was a summary of the full text,and prospected for future research based on current problems.Based on the above research,this paper constructed a walkability evaluation system of historic blocks under the "parking + walking" model,so that it could play a guiding role in the renewal and construction of historic blocks.