MICROWAVE ID TAG FOR ELECTRONIC TOLL AND TRAFFIC MANAGEMENT SYSTEMS

Electronic toll and traffic management (ETTM) systems are expected to play a critical role in reducing the traffic congestion and accident rates that plague cities around the world and in creating smoother traffic flow and a cleaner urban environment. The RF-ID tag is one technology that is indispensable to the creation of ETTM systems as a device for communication between vehicles and infrastructure equipment. The technical requirements for its application to electronic toll collection systems was studied and a microwave ID tag system was developed to meet those requirements. Also examined were the requirements of the system for installation at a conventional tollgate with lanes divided by barriers and an interrogator mounted overhead, and where vehicle speeds would not exceed 80 km/h. Based on the results of the studies, high-gain, broad-bandwidth antenna elements were developed for an interrogator and a transponder. The resulting system has a range of over 10 m and a 4 m x 2 m communication zone. Tests with operating vehicles confirmed that the system can transmit over 200 bytes of data at 64 kbps to a vehicle traveling as fast as 180 km/h. The system can also distinguish multiple transponders passing simultaneously through the communication zone. The system was tested for application to electronic toll collection as well as in Toyota City's travel time measurement system, which confirmed its effectiveness.

  • Supplemental Notes:
    • Five volumes of papers and one volume of abstracts comprise the published set of conference materials.
  • Corporate Authors:

    VERTIS

    TORANOMOM 34 MORI BUILDING 1-25-5
    TORANOMON, MINATOKU, TOKYO 105  Japan 
  • Authors:
    • Tanahashi, I
    • NISHIMURA, Y
    • Taniguchi, S
    • MATSUMOTO, N
  • Conference:
  • Publication Date: 1995-11

Language

  • English

Media Info

  • Pagination: p. 1555

Subject/Index Terms

Filing Info

  • Accession Number: 00723436
  • Record Type: Publication
  • Report/Paper Numbers: Volume 4
  • Files: TRIS
  • Created Date: Jul 27 1996 12:00AM