%0 Journal Article
%T The review of traffic safety researches
%J Shinrigaku Kenkyu
%D 1986
%A Nakajima, M.
%V 57
%N 2
%P 100-114
%X The traffic system has a multi-layered hierarchical structure. Traffic accidents are a phenomena on the man-machine system located at the middle level of the hierarchy. Focusing on this holon (man-machine system), safety problems are reviewed in relation with the upper and lower systems interacting with this holon.
%G 
%I University of Tokyo Press
%@ 0021-5236
%U http://dx.doi.org/