Final answer:
No, you cannot make a U-turn at the intersection when you see a "no U-turn" sign, even if traffic signals are operating. The purpose of this sign is to ensure safety by prohibiting dangerous maneuvers at the intersection.
Step-by-step explanation:
When you see a "no U-turn" sign at an intersection, it means that U-turns are prohibited at that location, regardless of whether the traffic signals are operating or not. Traffic signs are put in place to regulate traffic flow and ensure the safety of all road users, including drivers and pedestrians. The goal of the "no U-turn" sign is to prevent potentially dangerous maneuvers at intersections, which may cause confusion or accidents, especially in areas where vehicles often speed through without regard to the posted speed limit.
Traffic signals, on the other hand, are designed to control the movement of vehicles and pedestrians, allowing for safer crossing and reducing the incidence of vehicles speeding through. However, the existence of a traffic signal does not override the instructions provided by the "no U-turn" sign. It’s important to obey all posted signs and signals for the safety of everyone on the road.