Abstract
The efficiecy of public lighting as an accident couter-measure is usually assessed by means of before and afteraooidont gtudida. Que nay oonoludo ttia 9-npd ubliElibhting results in a reduction o 25 ,v -35 nf thenzgit-timp njurf accidenvs. it is :ot feasiblg toJ,assess the efficiency of Iightingt nor the minimumlevel for it to the effective in this way.