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Show Danger In Crowds. Experiments which havo been carried car-ried out on tho weight of crowds go to show that the loading of eighty-two eighty-two pounds to 102 pounds per squaro foot, usually assumed In Germany In floor design, and prescribed by tho Ministry of Public Works for this purpose. Is far too low to allow for conditions that may frequently occur. It is urged that this figure should bo raised to at least 123 pounds to 133 pounds a tqiuiro foot, otherwlso tho assumed factor of safety may bo en-crouched en-crouched on materially. London Engineer |