What are the requirements for setting up a circular fire lane?

[ChaseMarie]

Introduction to the requirements for setting up a circular fire lane is as follows: Introduction 1: For buildings with great height, large volume, complex functions, and difficult firefighting, a circular fire lane should be set up. High-rise civil buildings, stadiums with more than 3,000 seats, auditoriums with more than 2,000 seats, and single or multi-story public buildings such as exhibition halls covering an area of more than 3,000㎡ should have a circular fire lane set up around them. Introduction 2: High-rise factory buildings, Class A, B, and C factory buildings covering an area of more than 3,000㎡, and Class B and C warehouses covering an area of more than 1,500㎡ should have a circular fire lane set up.