Safe Uniformly distributed loads (U.D.L.) in kilonewtons per square metre on simply supported panels with deflections (D) in mm. Based on a maximum permissible stress of 180 N/mm2 which allows for a safety factor of 1.6.
Note: For pedestrain traffic there are three loading categories which are
(a) light duty.
(b) normal duty and heavy duty.
These categories are described as
(a) access limited to one person only,
(b) regular two way traffic and high density traffic, Bs4592, part one 1987.