The main contents of this implementation are the fire escape from the north entrance to the mountain top, Line A fire escape, Line B fire escape, etc. The main contents of the fire passage, emergency road of Line A and emergency road of Line B include road works, traffic works, water supply and pump house works, drainage works, lighting works, etc. In this project, the fire escape, line A and line B emergency roads mainly pass through both sides of the road to build new side ditch banks