CONSTRUCTION OF A UNIVERSAL TRAFFIC MANAGEMENT SYSTEM IN NARA CITY

On May 4, 1987, traffic queues occurred with a total length of 30 to 40 km centered around the Nara Park. The traffic queues in Nara City were caused mainly by motorists who visited the city for sightseeing but failed to enter any parking lot and had to loiter about because of their unfamiliarity with the city. A driver's preference questionnaire conducted 6 months earlier found that "traffic congestion," "parking lot," and "required travel time to driver's destination" were ranked as the top three desired items of information. Based on an analysis of the causes of congestion and to meet such drivers' need for information, a universal traffic management system (UTMS) was developed to control and manage traffic flow over a wide area by organically integrating three subsystems: 1) a travel-time prediction system that provides travel time and congestion information to drivers, 2) an advanced wide area parking/route guidance system that provides route guidance and full/vacant parking lot information to drivers, and 3) a speeding control/warning system that provides warnings to speeding vehicles. This system has been in operation since April 1991. The parking and traffic situations of the city resulting from the UTMS introduction were reviewed and the system was found to be effective as evidenced by an 18 percent decrease over last year's figures in the average congestion time at major intersections within the city, despite a 2.7 percent increase over last year in the traffic volume of the city.

  • 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:
    • Hisasue, T
  • Conference:
  • Publication Date: 1995-11

Language

  • English

Media Info

  • Pagination: p. 787

Subject/Index Terms

Filing Info

  • Accession Number: 00721991
  • Record Type: Publication
  • Report/Paper Numbers: Volume 2
  • Files: TRIS
  • Created Date: Jun 17 1996 12:00AM