A state of a driver operating a vehicle based at least on a rest pattern of the driver and a driver safety score and vehicle characteristic associated with the vehicle are determined. A risk of a planned route is received based on environment information. A safety risk for at least one location along the planned route is determined based on the received risk. Based on the safety risk, a use of available driver attention determined based on the state of the driver, possible modification of the planned route and vehicle state may be planned that minimize the safety risk. It may be determined that the driver is approaching a location along the planned route having a safety risk. Responsive to determining that the driver is approaching a location along the planned route having a safety risk, alert may be caused to be sent to the driver.