Flashing green lights on vehicles can confuse many drivers because they are far less common than red or blue emergency lights. In many regions, they are used by volunteer firefighters, EMTs, or incident command vehicles to identify authorized responders traveling to emergencies. Unlike police or ambulance lights, green lights usually do not give the driver special traffic privileges
Drivers generally do not have to pull over immediately, but they should stay alert, remain courteous, and allow space when safe. The purpose of the light is mainly visibility and awareness, not demanding right-of-way.
Flashing green lights can also mean different things in traffic systems depending on the country or province. In parts of Canada, they indicate an advanced or protected green turn signal, while in British Columbia they often mark pedestrian-controlled intersections.
The key is to stay calm, follow normal traffic laws, and avoid sudden reactions. Green flashing lights are meant to improve safety and coordination, not create panic.