Ключевые слова: accident, ambulance, arrest, background, beautiful, blue, by, car, city, control, cop, crime, danger, department, emergency, flasher, flashes, giving, hour, illuminated, lamp, law, light, patrol, perforations, police, protection, red, rescue, road, roof, safety, security, signal, siren, special, street, sunrise, sunset, surveillance, symbol, traffic, tragedy, transport, transportation, urban, urgency, vehicles, warning,