Final answer:
To make a wide turn with a long vehicle, start in the lane closest to your turn, signal early, maintain the lane, check mirrors and blind spots, and be mindful of traffic signs and safety regulations.
Step-by-step explanation:
When making a wide turn with a long vehicle, you should start from the lane closest to where you want to go and signal your intention early. Ensure you maintain your lane as much as possible during the turn and watch for pedestrians and other vehicles. If the turn cannot be completed without swinging into another lane, you should check mirrors and blind spots thoroughly, and possibly even stop if it is safe to do so, to ensure that the other lane is clear before proceeding with the turn.
You have to be particularly cautious of safety and traffic signs that might indicate a different kind of maneuver or restriction for long vehicles. Always adhere to road rules and regulations regarding lane use and turns, and be mindful of the movements of other road users.