If a flagger is present at a work zone, do exactly as he or she indicates to you with signs or hand signals. The flagger is there to protect both the work crew and motorists. Avoid a large truck's blind spot. Always remember this when passing. Watch out for a large truck's wid right turns.
Big rigs have to swing to the left before turning right.
Don't pull forward if a truck has its right turn signal on but begins to move left. Don't cut in front of a large turck in heavy traffic. A big truck needs twice as much distance to stop as a car, and can't do so if you cut it off suddenly. Give trucks plenty of room. Stop for stopped school busses.