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 {HEAD ~ occurrence} of {TAIL ~ the abnormality} which causes the abnormality of the moving objects, and a means for displaying the detected place of occurrence of the abnormality 
of
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 { HEAD ~ occurrence } of { TAIL ~ the abnormality } which causes the abnormality of the moving objects , and a means for displaying the detected place of occurrence of the abnormality
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