Title :
Infrared beacon for urban express ways
Author :
Sunachi, Yoshiteru ; Tajima, Teruyuki
Author_Institution :
Universal Traffic Manage. Society of Japan, Tokyo, Japan
Abstract :
In Japan, infrared beacons are used for two-way communication between the road and vehicles as a key part of the infrastructure of the UTMS (Universal Traffic Management Systems), which is a new traffic management system. Previous infrared beacons were planned to be able to handle a maximum speed of 70 km/h. By contrast the infrared beacon for urban express ways (hereafter called the express way infrared beacon) was planned for vehicles that travel at the high speed of 100 km/h. A feature of this express way infrared beacon is that the OBU (on-board unit) that is currently in wide use can be used without modification. This paper gives an overview of the express way infrared beacon and discusses experiments with actual vehicle travel
Keywords :
optical communication; road traffic; traffic control; 100 km/h; IR beacons; OBU; UTMS infrastructure; Universal Traffic Management Systems; infrared beacons; on-board unit; two-way communication; urban express ways; Attenuation; Communication industry; Control systems; Detectors; Downlink; Optical fiber communication; Road vehicles; Traffic control; Vehicle detection; Vehicle safety;
Conference_Titel :
Intelligent Vehicles Symposium, 2000. IV 2000. Proceedings of the IEEE
Conference_Location :
Dearborn, MI
Print_ISBN :
0-7803-6363-9
DOI :
10.1109/IVS.2000.898380
