著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Chao Wang and Mohammed A. Quddus and Stephen G. Ison,Impact of traffic congestion on road accidents: A spatial analysis of the M25 motorway in England,Accident Analysis & Prevention,0001-4575,Elsevier BV,2009-07,41,4,798-808,https://cir.nii.ac.jp/crid/1363670319542100992,https://doi.org/10.1016/j.aap.2009.04.002