2.7.5 – Space Below Many drivers forget about the space under their vehicles. That space can be very small when a vehicle is heavily loaded. This is often a problem on dirt roads and in unpaved yards. Don't take a chance on getting hung up. Drainage channels across roads can cause the ends of some vehicles to drag. Cross such depressions carefully. Railroad tracks can also cause problems, particularly when pulling trailers with a low underneath clearance. Don’t take a chance on getting hung up halfway across. 2.7.6 – Space for Turns The space around a truck or bus is important in turns. Because of wide turning and off-tracking, large vehicles can hit other vehicles or objects during turns. Right Turns. Here are some rules to help prevent right-turn crashes Turn slowly to give yourself and others more time to avoid problems. If you are driving a truck or bus that cannot make the right turn without swinging into another lane, turn wide as you complete the turn. Keep the rear of your vehicle close to the curb. This will stop other drivers from passing you on the right. Don't turn wide to the left as you start the turn. A following driver may think you are turning left and try to pass you on the right. You may crash into the other vehicle as you complete your turn.