With the continuous increase of traffic speed and the growing number of long tunnels, the possibility of train fires inside tunnels will also increase, and the evacuation will be very difficult.

The simulation model consists of stair component and elevator component, which are respectively based on the calculation of walking speed in stair and elevator evacuation time.

Americans desperate to flee the Israeli bombardment of Lebanon lined up near Beirut's port Friday for a third straight day as a massive evacuation operation picked up speed.