Multi Level Analysis And Optimization Of Urban Vegetable Market Space Based On Multi-source Data

Vegetable market plays an important role in Chinese history and plays a key role in promoting Chinese traditional culture and social customs.Vegetable market is an important place for people to buy vegetables and other fresh food.At the same time,the choice of vegetable market layout is closely related to road,residents' choice of travel distance,residential land layout,supporting public service facilities,population density,etc.,and also closely related to construction and urban planning.Combining with the theory of spatial planning and layout of vegetable market and the theory of spatial vitality,this paper analyzes the research and construction of relevant theories of vegetable market at home and abroad.At the same time,the paper interprets the relevant policy documents of national level,local level and district level of Dalian in recent years,and briefly introduces the development history of the vegetable market.It emphasizes the close relationship between the construction and layout of the vegetable market and the multi-source data.Based on Shahekou District,Dalian City,Liaoning Province,combined with multi-source data analysis,and based on the multi-source data of the vegetable market in Shahekou District,Dalian City,the paper regards the multi-source data of the vegetable market as an important factor affecting the planning and layout of the urban vegetable market,and carefully examines the travel situation,spatial distribution characteristics,and the coupling of the surrounding public service settings.The research focuses on 120 different levels of vegetable markets in Shahekou District of Dalian city.Firstly,the paper makes statistics on the distribution of the current situation of the vegetable market in Shahekou District of Dalian City,and makes field investigation and relevant data arrangement on the spatial characteristics of the vegetable market.According to the different scale,the dish Market in Shahekou District of Dalian city can be divided into three categories: street level dish market,community level dish Market and district level dish market.Secondly,according to the different spatial model,the dish Market in Shahekou District of Dalian city is divided into four types: continuous shop market,centralized market,affiliated market and decentralized market.Thirdly,according to the different leading model,the dish Market in Shahekou District of Dalian city is divided into three types: government led,business led and spontaneous organization.Then,based on the scale of scale,this paper analyzes the spatial distribution of multi-level vegetable market in Shahekou District of Dalian City,and obtains the questionnaire of residents' vegetable market travel through field investigation.This paper analyzes and studies the construction of travel reachable network circle of residents in different levels of vegetable market.Through the multisource data acquisition and analysis of the multi-level vegetable market in Shahekou District of Dalian City,this paper discusses the influence of the city road accessibility,the spatial aggregation intensity of the vegetable market,the population density,the supporting layout of public service facilities and other related factors on the site selection layout and grade division of the vegetable market.Specifically,the spatial multi-level distribution fitting analysis,spatial multi-level integration analysis,spatial distribution and scale effect analysis of vegetable market,and spatial multi-level coupling analysis of vegetable market are used.Finally,according to the mutual feedback mechanism between multi-source data and vegetable market,the layout optimization strategy of multi-level vegetable market is proposed.This paper summarizes the current situation of multi-level vegetable market in Shahekou District of Dalian city and the factors influencing its planning and layout,and puts forward optimization strategies and development suggestions under different levels for the construction and future layout optimization of multi-level vegetable market in Shahekou District of Dalian City,so as to adapt to the needs of the present generation,combine the development of vegetable market with the needs,pay attention to sustainable development strategies,and pay attention to vegetables Dynamic quality of market space,creating a public activity space with dynamic attributes and innovation of the times.