Ключевые слова: action, alert, alert system, alertness, blue lights, cars, chase, communication, control, crime, crisis, department, driving, emergency, emergency services, first responders, highway, incident, investigation, law, law enforcement, lights, movement, neighborhood, night, noise, officers, patrol, police, police presence, red lights, response, safety, scene, security, service, sirens, speed, speeding, team, traffic, transportation, travel, twilight, urban, urgency, urgent, vehicles,