东南大学学报（自然科学版）2017，Vol.47Issue(5)：1074-1078,5.DOI:10.3969/j.issn.1001-0505.2017.05.037
用地组合形态划分与交通安全影响因素分析
Classification of land-use combinations and analysis of influencing factors on traffic safety
摘要
Abstract
To investigate the influence of land use on the traffic safety,by taking the traffic districts as the analysis unit and the land-use characteristic parameters as the clustering index,five land-use combinations were divided by using the K-means clustering algorithm based on crash,traffic analysis zone boundary,road network,traffic flow,population and land-use data.The influence of the land use combinations on traffic safety was studied by the methods of semi-parametric weighted Poisson regression and variance analysis.The results show that the crash risks of ecotype and community service land-use are 1.171 and 0.641 times that of residential land-use,respectively.The social-demographic and traffic parameters of different land-use combinations are significantly different.The land-use combinations indirectly affect the traffic safety through social-demographic and traffic operation.The ecotype land-use combination is the safest,and the land-use combination of community service is the most dangerous which deserves more attention in traffic safety treatment.关键词
用地组合形态/交通安全/K均值聚类算法/半参数地理加权泊松回归模型/方差分析Key words
land-use combinations/traffic safety/K-means clustering algorithm/semi-parametric geographically weighted Poisson regression/analysis of variance分类
交通工程引用本文复制引用
丁微,徐铖铖,刘攀..用地组合形态划分与交通安全影响因素分析[J].东南大学学报（自然科学版）,2017,47(5):1074-1078,5.基金项目
国家自然科学基金资助项目(51508093). （51508093）
