Physical Distancing and Crowd Density Monitoring
Interactive Visual Report using SAS ® Visual Analytics ®
Maintaining physical distancing is one of the most effective methodologies for combating COVID- 19 . However , physical distance guidelines vary from country to country . For example , in the UK , the current guidelines mandate a physical distance of two meters 9 , while in the US , the CDC 10 advises physical distance of six feet ( 1.8 meters ). Australia and Germany have physical distance guideline at 1.5 meters , and France advocates one meter as its official guideline . The World Health Organization recommends people stay at least one meter apart . The risk of transmission halves for every extra meter of distancing up to three meters 11 . Given the variability in guidelines followed by different countries , we have built an interactive dashboard , where the user can quantify the violation by specifying the permissible physical distance as well as interaction time parameters .
The post-facto dashboard shown in Figure 7 provides an executive summary of the physical distancing violations . This dashboard gives a summary of the percentage of people whose interactions result in a violation , the severity of these violations , as well as the average interaction time during a violation based on user specified parameters . The severity of a violation is also computed based on user defined parameters . It is obvious that no interactions are the same . A person having more interaction time and less physical distance is more at risk of transmitting the corona virus than a person spending less interaction time and maintaining enough physical distance . Keeping this in mind , we have built an interaction plot providing a visual understanding of various interaction between people in the video footage .
9 https :// www . gov . uk / coronavirus .
10 https :// www . cdc . gov / coronavirus / 2019-ncov / prevent-getting-sick / social-distancing . html .
11 https :// www . technologyreview . com / 2020 / 06 / 02 / 1002493 / two-meter-distancing-halves-risk-compared-to-onemeter-suggests-a-new-review /.
IIC Journal of Innovation - 13 -