In order to achieve this, the apparatus pertaining to the present invention has a means for calculating the positions and moving directions of moving objects, a means for detecting, from these calculated positions and moving directions, the place of occurrence of {HEAD ~ the abnormality} which causes {TAIL ~ the abnormality} of the moving objects, and a means for displaying the detected place of occurrence of the abnormality 
In order to achieve this , the apparatus pertaining to the present invention has a means for calculating the positions and moving directions of moving objects , a means for detecting , from these calculated positions and moving directions , the place of occurrence of { HEAD ~ the abnormality } which causes { TAIL ~ the abnormality } of the moving objects , and a means for displaying the detected place of occurrence of the abnormality
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