How dense is “Very Dense”?

The CrowdSize application is an easy to use tool for estimating the size of crowds at outdoor events.  It has three standard density factors that can be applied to the area the user outlines on an aerial view of the crowd location.  They are: Heavy or “dense” (1person / 4sf = 2.68 persons / 1sm), […]


There was a good bit of controversy over who’s inauguration crowd was bigger, Trump’s or Obama’s.  We can decide this question for ourselves with the CrowdSize application and photographs of the events. But, before we do our study we need to sift through another controversy surrounding photographs of the Trump crowd on the day of […]

Clinton Rally 10/10/16

The Hillary Clinton campaign held a rally at Ohio State University on October 10, 2016.  It was a post debate event and the day before voter registration ended in Ohio.  News coverage stated it was a massive rally that drew 18,500 people.  This figure was supplied by the U.S. Secret Service.  There were videos and […]