This　article　is　aimed　at　identifying　the　main　risk　behaviors　of　pedestrians,　sorting　them　on　the　basis　of　risk　levels,　and,　moreover,　performing　risk　assessment　and　intervention　for　the　pedestrian.　In　order　to　achieve　this　goal,　this　article　analyzes　a　large　amount　of　traffic　accident　data　in　Beijing　and　finds　that　the　movable　sight　obstacle　is　an　important　cause　for　traffic　accident　between　pedestrians　and　motor　vehicle　(hereinafter　referred　a　vehicle-pedestrian　accident).　Some　tables　and　figures　display　when　and　where　the　movable　sight　obstacle　usually　occurs　and　also　shows　their　logical　relationship　with　other　causes.　Based　on　the　results　of　investigation　and　analysis,　the　vehicle-pedestrian　mechanism　diagram　was　established　using　the　method　of　fault　tree　analysis.　The　diagram　shows　some　key　factors　and　their　effect　level　leading　to　the　accident.　The　key　importance　coefficient　model　was　adopted　to　estimate　the　function　of　individual　risk　behavior　quantitatively　during　the　processing　of　accident.　In　order　to　take　advantage　of　the　key　importance　coefficient　model,　the　following　research　was　conducted:　first,　we　analyzed　traffic　accident　data　from　2005　to　2014　to　find　common　pedestrians　risk　behaviors.　Second,　since　traffic　accidents　and　movable　sight　obstacle　are　closely　related　to　motor　vehicle　violations,　we　collected　and　analyzed　the　data　of　traffic　enforcement　from　2007　to　2014.　Finally,　taking　into　account　the　individual　preferences　of　policemen,　we　interviewed　200　police　officers　and　others　to　calibrate　our　estimates.　Through　these　efforts,　we　sorted　the　pedestrians＇　risk　behaviors　in　table.　Unlike　past　research,　the　object　of　this　study　is　pedestrian　risk　behaviors　and　faults.　Furthermore,　we　also　gained　understanding　to　the　mechanism　of　vehicle-pedestrian　accident,　which　was　already　applied　to　assessment　and　intervention　for　pedestrians　in　some　primary　schools　in　Beijing.　©　The　Author(s)　2016.