Intelligent Transport Systems 1 Introduction
2 ITS Trends in Japan
Cutting-Edge National Cooperative ITS Project Showcase on Metropolitan Tokyo Public Roads Cooperative advanced safety vehicles (V2V, V2P) Next generation DSSS (I2V) Intersection collision avoidance & safe and smooth flow utilizing signal information Intersection driving support systems using V2V and V2P communication Pedestrian Check road ahead Approaching vehicle Signal information drive system (SIDS) For a greener & safer traffic society Driving safety support systems (DSSS) Smartway with ACC/C-ACC (I2V, V2V) Sag congestion mitigation service on expressways utilizing ITS spots and ACC/C-ACC ITS spot services The world s first cooperative service to support safe and comfortable driving Mobile and ITS spot cooperative services (I2V) Safe and comfortable urban transportation through new traffic information networks Stamp collection rally Route guidance Awareness notification Mobile Emergency info. Congestion ahead. Beware of collisions Road signage info. Wide area road traffic info. Mobile Mobile and ITS spot cooperative services ITS spot OBD Mobile Fig. 3 ITS Green Showcase. In addition, at the 2013 ITS World Congress in Tokyo, spot services the ITS Green Safety Showcase, an initiative to resolve A model course passing through the Tokyo Bay Aqua- traffic problems through cooperative ITS, carried out the Line allowed participants to experience the traffic infor- following three activities (Fig. 3). mation service that sends information from ITS spots to 2. 4. 1. ITS spot services smartphones. Participants experienced dynamic route guidance, In addition, proactive initiatives to promote greater safe driving support and ETC, the three basic services implementation of these services at nationwide michi no among currently available nationwide ITS spot services, eki roadside stations, as well as expressway parking and by riding a demonstration bus following a model course service areas were carried out, and more such public- along metropolitan expressways. private partnership-driven activities will be undertaken. 2. 4. 2. Traffic smoothing in expressway sag road sections 2. 5. Advanced Safety Vehicle (ASV) Project Since 1991, the Road Bureau of MLIT has promoted Participants experienced traffic smoothing achieved the development and popularization of ASVs equipped through road-to-vehicle and vehicle-to-vehicle coordina- with DSSS that use leading-edge technology through col- tion between vehicles equipped with adaptive cruise con- laboration between industry, academia, and the govern- trol (ACC) or cooperative adaptive cruise control (C-ACC) ment. The 5th ASV promotion plan began in 2011. This systems, which automatically regulate vehicle speed and plan aims to encourage the development of even more the distance between vehicles. sophisticated DSSS capable of autonomous detection and 2. 4. 3. Cooperative mobile communications and ITS DSSS that use next-generation communication technol- Copyright 2014 Society of Automotive Engineers of Japan, Inc. All rights reserved
3 ITS Trends outside Japan