Safe passage has different regulations according to local conditions. Please refer to the Code for Fire Protection Design of High-rise Civil Buildings and the Code for Fire Protection Design of Buildings, which is very clear. Generally speaking, evacuation walkways should be calculated and determined according to the number of evacuees, but the minimum clear width of indoor fire safety exits should not be less than 1 and 4m; The clear width of outdoor evacuation walkways in crowded public places should not be less than 3 or 0m. The clear width and clear height of the fire lane shall not be less than 4 and 0m.

There is no clear stipulation about outdoor fire hydrants that things are not allowed to be piled up within a certain distance, but whether it is outdoor or indoor fire hydrants, it is required that things piled up around them should not affect the use.

In addition, the width of the fire lane should not be less than 400 meters. The distance between the fire lane and the external wall of the high-rise building should be more than 5. 00 meters, and there should be no obstacles below 4. 00 meters above the fire lane.

Safety evacuation requirements: ① There shall be no less than two safety evacuation exits in the school. ② There should be no boiler room, combustible material storage room, unsealed elevator shaft, combustible gas pipeline, etc. in the stairwell used for evacuation in the school. (3) Non-combustible materials shall be used for outdoor evacuation stairs and exit platforms on each floor, and the passage shall be ensured to be smooth. (4) Hanging doors or sliding doors should not be used for evacuation doors, turnstiles are strictly prohibited and should be opened in the evacuation direction.