What is the width of the construction fire lane?
A closed courtyard or patio high-rise buildings along the street, should be pedestrian streets and communicated inner courtyard (use staircase), the distance of not more than 80m.4.3.2 high-rise building courtyard or patio, while the short side length of more than 24m, should be equipped with fire lane into the inner court or patio.4.3.3 fire water should be provided for natural water sources and fire pools for fire engines
4.3.1 high-rise buildings around, should be equipped with ring fire lane. When there are difficulties with ring lane, two long side along the high-rise building set fire road, when the building along the length of more than 150m or the total length of more than 220m, should be set in building fire lane through the moderate position.
4.3.4 the width of fire lane should not be less than 4.00m. Fire lane from high-rise building exterior wall should be greater than 5.00m, fire lane above 4.00m within the scope of the obstacles should not be.4.3.5 end fire lane should have back lane or return field, and the return field shall be less than 15m * 15m. The return field of large fire engines shall not be less than 18m * 18m.The fire lane pipeline and Angou, should be able to withstand the pressure of fire fighting vehicles.4.3.6 through the fire lane of the high-rise building, its width and height clearance shall not be less than 4.00m.4.3.7 fire lane and high-rise buildings should not be set up to prevent climbing fire trucks operating trees, overhead pipelines and so on.
