%0 Journal Article
%T The effectiveness of impact attenuators: Two case studies in Massachusetts
%J Accident analysis and prevention
%D 1973
%A Fitzgerald, EJ
%V 5
%N 3
%P 243-245
%X An investigation of all collisions experienced over a 2-yr period of two crash cushion modules revealed a benefit/cost ratio greater than 2.4.<p />
%G en
%I Elsevier Publishing
%@ 0001-4575
%U http://dx.doi.org/