シカゴはGPSをも活用してsocial distancing をきちっと取っているという。 その自己評価?はA++ 一部転載: Chicago scores an ‘A’ in social distancing, according to a GPS analysis project, but expert says: ‘I need Chicago at an A+. Maybe an A++’ Chicagoans were ordered to stay at home starting last weekend and, according to a company grading social distancing, the city’s getting an A. Both Cook County and the state of Illinois have high marks as of Wednesday on the “Social Distancing Scoreboard,” an interactive project based on location data collected by the company Unacast that roughly measures whether or not people are heeding the advice of officials to “flatten the curve” of the spread of the coronavirus.