The Department of Transportation has limits on how long tractor trailer drivers can work.
Transport drivers can drive for 10 hours following 8 hours of off duty time and may not be on duty (driving or not) for more than 15 hours .

Given that your shop is 480 miles from the track, your driver can average 55 miles per hour and will stop for a one hour (1) lunch and a 15 minute DOT inspection, HOW LONG WILL IT TAKE THE DRIVER TO GET TO THE TRACK?

Drag the boss to the correct travel time.