The cross-harbour tunnel of Hong Kong-Zhuhai-Macao Bridge is 46 meters deep. How can I escape if I miss it?

Don't worry if there is water leakage. When designing, the designer is already ready. The tunnel has a parking area every 500 meters, and there are escape routes and stairs every 240 meters. In addition, the managers of the bridge monitor the tunnel 24 hours a day. Once a water leak is found, they will immediately inform the vehicles in the tunnel to evacuate, and the rescuers stationed nearby can also arrive at the scene within two minutes.