If you know how to drive. To study in order to better understand trails. Should study the information about the car such as the car's speed and traffic laws.
If you know you'll need to drive to get to study complete path to understanding should study the information about the vehicle, such as the speed of the car, kotcharachon.
If you know that you have to drive to the place where it has been studied to understand route should be informed about a car such as the speed of the car traffic regulations.