A 3-minute lesson from the South Carolina course. Read the rules and examples, follow the handbook page references, and check your understanding before you move on.
Behind a truck you can't see what's ahead, and the driver can't see you. On hills and at corners, trucks move in ways drivers don't expect. Give them space.
200 feet
How far a large vehicle's rear blind spot can extend
On steep hills, large vehicles must go slowly, about 35 mph, and use the right lane. Avoid the right lane on hills and near truck weigh stations where trucks re-enter faster traffic.
To turn right, a truck or bus may swing wide to the left, sometimes using other lanes. Don't squeeze between it and the curb, and don't turn until it has finished its turn.
A bus ahead signals right, then drifts left toward your lane. Don't try to pass on its right. It's swinging wide to clear the corner. Stay back until it has completed the turn.
Check your understanding
Read the question, decide on an answer, then open it to check the explanation. These are Roadwise study questions based on the source handbook.
When traveling up or down steep hills, large vehicles often travel about:
35 mph, using the right lane
55 mph, using the left lane
15 mph, using any lane
70 mph, using the right lane
Answer: 35 mph, using the right lane
Large vehicles must drive slowly, approximately 35 mph, on steep hills and use the right lane.