Rear View Mirror When passing, if you can see the entire truck in your rear view mirror, it’s safe to marge back into the lane.
Passing trucks When passing a truck, allow one car length for every 16km per hour. For example, if you’re travelling 60km/h leave four car lengths between you and the truck.
Maintaining your speed Once you pass a truck and return to the right lane, do not slow down. Maintain your speed and make sure there is a safe space between the truck and your car. Trucks take longer to regain their speed after being slowed down and may slow the traffic behind them.