As cities and states have raced to shut down businesses to prevent the spread of COVID-19, the roads have gone quieter. Normally gridlocked cities like Los Angeles and Chicago have seen much faster traffic speeds during so-called rush hour—53 percent and 70 percent, respectively—as residents hunker down and hope social distancing does its work.

But shelter-in-place orders are harder to carry out when your office is moving 65mph, traveling hundreds of miles a day, and helping to move the emergency supplies that are keeping the country running during an unprecedented public health crisis. “We’re still moving America,” says Steve Fields, a Kansas City-based truck driver with YRC Freight.