The Obama coronation is journalism professor Steve Doig's opportunity to take on laughable crowd estimates:
When it comes to accurately counting crowds, the slogan should be "No, we can't." In reality, estimating the size of crowds at mass public events is much more about public relations than a quest for truth. Whether the crowd is gathering for an anti-war protest, a sports team's victory parade, a golf tournament, a pope's outdoor Mass or the swearing-in of the most powerful man on Earth, organizational reputations and personal egos are ballooned or deflated by public perceptions of whether the crowd is surprisingly large or disappointingly small.
He then explains how to make a defensible one:
A loose crowd, one where each person is an arm's length from the body of his or her nearest neighbors, needs 10 square feet per person. A more tightly packed crowd fills 4.5 square feet per person. A truly scary mob of mosh-pit density would get about 2.5 square feet per person.
The trick, then, is to accurately measure the square feet in the total area occupied by the crowd and divide it by the appropriate figure, depending on assessment of crowd density. Thanks to aerial photos or mapping applications like Google Earth, even outdoor areas can be readily measured these days.
0 comments:
Post a Comment