Estimating crowd sizes tin last a really controversial subject. For illustration Donald Trump claimed at that spot were a "million-and-a-half people" at his inauguration in addition to said that the press were "going to pay a big price" for reporting figures means below his skillful opinion.
One means to gauge the size of a crowd is to operate maps to calculate the surface expanse of a crowd in addition to thence to multiply that surface expanse past times the estimated density of the crowd. MapChecking is a really elementary interactive map tool that tin produce this for you. It allows you lot to depict the surface expanse of your crowd, demonstration, march or gathering on a Google Map. It thence allows you lot to come inwards an gauge for the reveal of people per foursquare meter inwards your crowd. Once you lot bring entered those 2 variables MapChecking automatically industrial plant out the crowd size.
Using a Reuters photo of Trump's inauguration alongside Map Checking gave me a figure of 357,143 people inwards the National Mall on Jan 20, 2017. If anything this mightiness last beingness a flake generous every bit I haven't allowed for what await to last sizable gaps inwards the crowd inwards the Reuters photograph.
