Dr. Kevin Gurney and Pawlok Dass, have been exploring the relationship between new data on daily traffic and the number of COVID-19 cases in the United States. The analysis shows that prior to the end of March, U.S. traffic activity—a useful proxy for a return to pre-COVID economic activity—declined rapidly as the number of COVID-19 cases increased. However, since that time, traffic activity and COVID-19 cases have been exhibiting strong regional patterns, with states such as California and Texas showing traffic increases followed by a rise in COVID-19 cases. Other states such as New York and New Jersey, by contrast, show a rise in traffic activity but a decline in COVID-19 cases. Read More.