When can a flashing or revolving red light be used on a police vehicle?

A flashing or revolving red light on a police vehicle is primarily used when responding to emergencies. This is an essential safety measure that alerts other drivers and pedestrians to the presence of an emergency vehicle, allowing for a quicker and safer response to incidents requiring immediate attention. When these lights are activated, it signals to others on the road to yield the right of way, ensuring that the police can navigate through traffic efficiently while attending to urgent situations.

The use of red lights is specifically regulated to enhance the visibility of law enforcement vehicles in the vicinity of emergencies, allowing officers to perform their duties effectively while ensuring public safety. While the other scenarios may allow for the presence of law enforcement, flashing or revolving red lights are not intended for routine traffic stops or solely for low visibility conditions, as those situations may not necessitate the same urgency and potential disruption to normal traffic flow.