85. Use by wheel barrows, etc.- The employer shall ensure at a construction site of a building or other construction work that- (a) every runway or ramp used for wheel-barrows, hand carts or hand trucks is not less than one meter in width and is constructed of not less than fifty milimetres thick planking and is supported and braced suitably for such use; (b)every runway or ramp located more than three meters above the floor or ground is provided on the open sides with suitable guard rails of adequate strength. | 
