The Rio de Janeiro City Hall has signed an agreement with telecomunications company TIM to use geolocation data to develop "heat maps" by cross-referencing epidemological hubs with high population density locations. Under the agreement, TIM will pinpoint the movement of its users across Rio de Janeiro through antennae-facilitated geolocation triangulation and send it online to the local government to enable it to monitor whether individuals are complying with isolation measures and assess…