Final answer:
When turning right with a long vehicle, drivers need to use caution, signal in advance, and may need to use part of another lane to safely navigate the turn while being mindful of other traffic and road users.
Step-by-step explanation:
When turning right with a long vehicle, if it is impossible to stay in the proper lane, the driver should use the following safety measures:
Ensure the turn is executed with the utmost caution and awareness of surrounding traffic.
Use turn signals well in advance to communicate with other road users.
Move into the intersection as far to the right as is safe and practicable to avoid swinging wide on the turn.
If necessary, temporarily use part of another lane to complete the turn safely, only after checking that it's safe to do so.
Keep an eye out for pedestrians, cyclists, and other vehicles that might be in the turning path.
Whenever possible, avoid making the turn during times of high traffic volume.
Remember, the safety of all road users is the primary concern, and making sure that the turn does not endanger other vehicles, pedestrians, or property should be the top priority.