On January 23, 1993, the Ministry of Construction of Japan asked experts for advice on geometric design standards for 21st century Japan. The Road Council, responding to his request, released the final report on this theme on November 10, 1994. The report defined the needs and ways to change existing uniform roadway construction conducted across the nation so that various general public needs can be met. The emerging social changes should be appropriately satisfied, focusing significantly on mobility. The appropriate deployment of roadway networks which interconnect the expressways and local streets are required to make the most of advantages offered by the features and functions inherent in the expressways and streets. To this end, individual roadway construction should proceed to meet the local needs created by cultural and historical circumstances. The final report concluded that unique ideas that can fulfill these needs should be reflected in the new geometric design standard for the 21st century in Japan.
Abstract