Ключевые слова: accident, alarm, alert, ambulance, arrest, attention, background, beacon, black, blue, brigade, bulb, car, caution, concept, crossing, danger, design, emergency, equipment, fire, flash, flasher, flashing, flat, glowing, icon, illuminate, illustration, isolated, lamp, light, medical, police, red, rescue, rotating, safety, security, sign, signal, simple, siren, symbol, traffic, urgency, vehicle, warn, warning, white,