The icon on the top of the route column, that shows a ratio tower, or radio tower with waves, will help indicate if vehicle data has arrived in the last 5 minutes. It is based on the assigned vehicle, and might appear online, even if the currently assigned driver is not signed in or in-service. The icon means that there is a record of new information for that vehicle that has arrived today. If it is from the last 5 minutes, then it has the radio waves. Please try not to rely too much on it to show when the driver has logged off or turned off the device.