What is a circular fire lane?

According to the code for fire protection design of buildings (GB 50016-2006) 6.01,... when the length of the street part of the building should not be greater than160m and the total length is greater than 220m, a fire truck should be set up to pass through the building. When there are difficulties, a ring fire truck should be set up. The circular fire lane is a fire passage around the building, which is circular according to the requirements of the code. When it really can't be round, there must be a return yard for fire engines at the top. Of course, it takes up a lot of local garbage. For example, if the fire truck can't get in and put out the fire, the building will be burned down, which is the biggest loss.

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