Document b53z4nOzKoDRa3mgd8arqkEk1

770 S. K. GUTH AND E. A. LIN8DAY LIGHTING FOR SEEING 771 ' '. * .... ' '// '. .s f .'l^"!'-~s'fe P~i 'A jOrn^ '" 'r- - ` Figure 13, A view of an industrial firm's erection Bhop before relighting.1 Manageraent' iibt^^ that the accident rate in this area was high. Employees were working in shadow|g|TM ':r'W- ; , '%' M- 'c : \ 4'"'.,ill ".' . v"ucr.^~- . i 1 ,. , !'. ' . 1 I;I ,',' ' ' .'f. ,.va J1--. y , v-1 .^", '$.*2 ' 1 t f <itTV X" ;c^ / '$r i'i 1 , / ' <*' < i . ? J--% r* 1 Figure115. The tM$>mdp`fi^ih;Figure&13i''&^ the ^ andle level, the paint .created a more pleasing atmosphere in which to work, minimized shadows, and increased illumination on vertical work surfaces; * (tfr r ' '' ' ' ' ,ir r ' ' .>{****.*- Figure 14. The same shop as in Figure 13 after relighting to about 20 footci ndl 3000-watt mercury lamps plus a few incandescent lamps to provide light in caibe oi interruption. ^eDe^^a derived from relighting and painting the erection shop. Accident rate reduced 32 per cent after relighting and decreased -16V* per cent further after paifiiing.