抄録
We estimate potential CO2 emission reduction in the freight sector by optimizing the physical distribution for the following
two cases: the modal shift in the transportation and the change of the industrial structure to "local production for local
consumption". The modal shift in the transportation can reduce CO2 emissions to 54 % compared with the present. The
decrease in the transport distance can reduce CO2 emissions to 58% compared with the present. While minimizing transport
cost shows the same trend, minimizing transport time does not contribute CO2 emission reduction. This paper also shows the
relationship between physical distribution and industrial production by the conception of "derived physical distribution". The
derived physical distribution is clearly different from that of present physical distribution when optimizing CO2 emissions in
the case that transport distance can be changed. Combining the optimization analysis and the input-output analysis in the
physical distribution, the optimized physical distribution can be depicted by visualizing industrial activities.
