Final answer:
When opening your driver's side door in a road with oncoming vehicle and bicycle traffic, you should only open the door when it does not interfere with the traffic. Check for oncoming vehicles and bicycles before opening the door.
Step-by-step explanation:
When opening your driver's side door in a road with oncoming vehicle and bicycle traffic, you should open the vehicle door only when it does not interfere with the vehicle and bicycle traffic approaching from behind. It is important to check for oncoming traffic before opening the door to ensure the safety of the cyclists and other vehicles. It is recommended to use the left hand to open the door and then check for oncoming traffic.