Data from texts and tweets sent from our smartphones can help first responders estimate crowd size and be better prepared in emergencies. (treehugger.com)
They examined photographs, video and satellite imagery to estimate the crowd density in different areas of the demonstration. (nytimes.com)
The packed grandstands and estimated crowd of 150,000 enthusiastic fans witnessed a terrific GT battle which saw Oliver Gavin and his team mate Jan Magnussen overcome a first - lap incident and the debilitating effects of exhaust fumes to take third place and some valuable points for their championship title place. (olivergavin.com)