The National Institute for Land and Infrastructure Management (NILIM) and the Advanced Cruise-Assist Highway System Research Association (AHSRA) have been promoting R&D for the Advanced Cruise-Assist Highway Systems (AHS). Metropolitan Expressway 4, Shinjuku Line, Sangubashi area is one of the locations for the AHS field tests on actual roadways that have been underway since fiscal 2002. The objective of the pilot program, implemented in the Sangubashi area from March- May 2005, was to reduce rear-end collisions, side wall collisions and decrease dangerous conditions under which near misses occur by providing information to regular vehicles through the already widespread VICS devices installed in cars. The results verified effective accident reduction and improvement in vehicle behaviour, illustrating the effectiveness of the AHS service. An additional, long term pilot study was initiated in September 2005 and its long-term effectiveness is evaluated. The results of verification of the long-term effectiveness Vehicle-Highway System services obtained from the pilot study are discussed. For the covering abstract see ITRD E134653.
Samenvatting