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San Francisco -- A survey using sophisticated aerial photography of Sunday's anti-war march and rally in San Francisco has produced results that indicate a far smaller crowd than the 200,000 protesters estimated by police and event organizers.
The results of the independent survey, commissioned by The Chronicle and SFGate.com, cast doubt on traditional counting methods and contradict the crowd estimate of 200,000, which was reported in this newspaper and news media around the world. Crowd size in a demonstration is important because organizers tend to use it as evidence of support for their cause.
In a series of detailed, high-resolution photographs, the aerial survey shows that around 65,000 people were in the area of Market Street and Civic Center Plaza at 1:45 p.m. Sunday, which organizers said was when crowd size was at its peak. That number does not take into account marchers who dropped out before or arrived after the moment the photo sequence was shot. Calculating a precise number of protesters for the entire rally is not possible from this survey, but the result is much more accurate than the visual scan method most commonly used by police and organizers.
Read the whole story
It would be interesting to have these kinds of tests done at the protests in Europe and Arab countries....
The results of the independent survey, commissioned by The Chronicle and SFGate.com, cast doubt on traditional counting methods and contradict the crowd estimate of 200,000, which was reported in this newspaper and news media around the world. Crowd size in a demonstration is important because organizers tend to use it as evidence of support for their cause.
In a series of detailed, high-resolution photographs, the aerial survey shows that around 65,000 people were in the area of Market Street and Civic Center Plaza at 1:45 p.m. Sunday, which organizers said was when crowd size was at its peak. That number does not take into account marchers who dropped out before or arrived after the moment the photo sequence was shot. Calculating a precise number of protesters for the entire rally is not possible from this survey, but the result is much more accurate than the visual scan method most commonly used by police and organizers.
Read the whole story
It would be interesting to have these kinds of tests done at the protests in Europe and Arab countries....
