2018 Volume 74 Issue 3 Pages I_63-I_70
The number of the new road construction is expected to decrease. On the other hand the number of road maintenance and repair construction will be possibly to increase. The supply of the asphalt mixture for the existing roads is absolutely imperative. However the investment in construction in Japan is shrinking every year. Therefore, the quantities of asphalt mixtures produced for the road pavement material have been decreased year by year and the elimination and consolidation of the asphalt plant has same tendency as the number of the quantities of asphalt mixtures produced. In the near future, it would be concerned about the appearance of the road where asphalt mixtures will not be supplied. However there is no detailed grasping method of the scope of the asphalt mixtures supply.
This study aimed to analyze the detailed scope of the asphalt mixtures supply by using the road network data and to suggest the approach for the sustainable supply of asphalt mixtures.
