When can a driver legally make a right turn on red?

A driver can legally make a right turn on red after coming to a complete stop and ensuring that the intersection is clear. This requirement is essential for maintaining safety at intersections, as it allows the driver to assess the situation and check for pedestrians, cyclists, and other vehicles that might be in the way. The law mandates this stop to ensure that turning right does not interfere with oncoming traffic or create hazardous situations.

The other choices describe scenarios that do not align with traffic laws regarding right turns on red. For instance, turning on a yellow light does not apply specifically to right turns on red, as a yellow light indicates that the signal is about to change, and drivers must be cautious. The idea that turning is allowed only when other vehicles are not turning simplifies the situation too much; a driver must still stop and check for right-of-way. Lastly, the notion that turns can be made at any time during the day disregards conditions that may arise at different times, such as heavy pedestrian traffic or local regulations that may restrict such actions. Therefore, a full stop and ensuring the intersection is clear is integral to legally executing a right turn on red.