Arizona Driving Permit Written Practice Test

Under what condition can you legally drive through a red light?

1. When there is no traffic

2. Only after a complete stop and if turning right

3. When directed by a police officer

4. When it is a flashing red light

The correct answer is: Only after a complete stop and if turning right

Driving through a red light is generally prohibited; however, there are specific circumstances where it is permissible. One such condition is when a driver comes to a complete stop before the stop line or crosswalk and is making a right turn. This allows for the safe merging into cross traffic, as drivers must yield to any oncoming vehicles or pedestrians. It's important to recognize that even in this situation, the driver must ensure that it is entirely safe to proceed and must obey any relevant traffic signs prohibiting the turn on red. This practice helps maintain road safety by ensuring that all traffic participants are aware of each other's presence and intentions. In contrast, simply having no traffic nearby does not legalize running a red light; traffic rules must always be followed regardless of the presence of other vehicles. Similarly, turning on a flashing red light has different rules, often resembling a stop sign where a complete stop is required before proceeding. Following a police officer’s direction may also allow for crossing a red light, but this is dependent on the officer’s instructions and should not be interpreted as a general rule for all drivers.