Overview
- The agency conducted a brief closure on Tuesday evening to test the public‑address system after the erroneous alert.
- Sunday’s evacuation announcement was mistakenly triggered by a stationary car and did not require people to leave the tunnel.
- Drivers exited vehicles and gathered at emergency doors, but the escape passage remained dark because emergency lighting activates only during a confirmed evacuation.
- Personnel were dispatched from the traffic control center and a road inspector was sent to guide motorists, with an internal investigation ongoing.
- An eyewitness video has garnered over 1.2 million views on TikTok, focusing attention on tunnel messaging and safety procedures.