Ключевые слова: accident, action, alertness, ambulance, arrest, assistance, automobile, blue, bright, car, colours, control, cop, crime, danger, department, driving, emergency, flashing, guard, headlamp, help, hope, horizontal, illuminated, law, light, metropolitan, night, nightlife, patrol, police, problem, protection, rescue, safety, security, service, sheriff, shiny, siren, surveillance, traffic, transportation, urgency, vehicle, warning,