提示词

“A realistic smart city traffic intersection at night. An ambulance with flashing red and blue lights is stuck at a red signal while traffic is congested. Inside the ambulance, a professional driver opens a mobile app showing ‘Emergency Signal Access’ and receives a secure OTP after patient verification. The driver enters the OTP. The traffic signal instantly turns green for the ambulance lane while all other directions turn red. Nearby vehicles stop safely with warning lights and alerts. The ambulance passes smoothly through the intersection without delay. On-screen text: ‘OTP-Based Smart Traffic Signal Access – Only With Verified Patient’. Futuristic UI overlays, smooth camera movement, cinematic lighting, ultra-realistic, 4K quality, smart city environment, safe and controlled traffic flow.”