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

[AbelFitz]

Circular fire lane setup requirements are introduced as follows: 1. Introduction one: For buildings with great height, large volume, complex functions, and difficult firefighting, a circular fire lane should be established. High-rise civil buildings, stadiums with over 3,000 seats, auditoriums with over 2,000 seats, and single or multi-story public buildings such as exhibition halls covering an area greater than 3,000㎡ should have a circular fire lane set up around them. 2. Introduction two: High-rise factory buildings, Class A, B, and C factory buildings covering an area greater than 3,000㎡, and Class B and C warehouses covering an area greater than 1,500㎡ should have a circular fire lane set up.