Using Built Environment to Simulate the Spatial Distribution of the Working and Resident Population in Mega-cities:A Case Study of Chongqing Central City
Using Built Environment to Simulate the Spatial Distribution of the Working and Resident Population in Mega-cities:A Case Study of Chongqing Central City
A method was proposed for spatial distribution analysis of urban population in the central urban area of Chongqing city,aiming to formulate scientific and rational schemes for population dispersion.This method was based on the built environment and in-volves the following steps:firstly,acquiring built environment variables using multi-source geographical data;secondly,calculating the grey correlation between built environment variables and residential population,thereby filtering strongly correlated variables;and final-ly,training a random forest model on the selected variables to construct a spatial model of residential population distribution.The re-sults indicate that this method achieves a high fitting accuracy for residential population spatialization,effectively to simulate urban resi-dential population distribution and accurately understand the spatial distribution of residential population.
关键词
建成环境/人口空间化/职住人口/灰色关联模型/随机森林
Key words
built environment/spatialization of population/working and resident population/grey correlation model/random forest
维普
万方数据