THE SYSTEM OF AREA TRAFFIC CONTROL IN CENTRAL TOKYO

A NEW AREA CONTROL SYSTEM OF TRAFFIC SIGNALS IN DOWNTOWN TOKYO PROVES TO BE FAR MORE ADVANCED THAN A PREVIOUSLY USED GINZA SYSTEM. THE COMPUTER NOW USED CAN DIRECTLY COMMAND THE CHANGING POINTS OF SIGNAL INDICATORS FOR ALL TRAFFIC LIGHTS WITHIN THE AREA WHICH WAS NOT POSSIBLE BEFORE. THE CENTRAL CONTROLLER PERFORMS ALL OPERATIONS NECESSARY FOR DETERMINING THE CHANGING POINT, THUS ELIMINATING SOME FUNCTIONS OF THE LOCAL CONTROLLERS AND RAISING THE DEGREE AND QUALITY OF CONTROL. CENTRALIZATION OF FUNCTIONS ALSO MAKES IT RELATIVELY SIMPLE TO IMPROVE AND READJUST THE SYSTEM TO ADAPT IT TO FUTURE DEVELOPMENTS IN SIGNAL CONTROL TECHNIQUES. INSTEAD OF REPLACING THE OLD HARDWARE SYSTEM, IT WILL BE SUFFICIENT TO MODIFY OR RECONSTRUCT THE SOFTWARE-- THE COMPUTER PROGRAMS. CONTROL METHODS, SYSTEM DESIGN, AND EVALUATION OF CONTROL EFFECTS ARE PRESENTED.

• Supplemental Notes:
  • Vol 19, No 10, PP 1-10, 10 FIG
• Authors:
  • KOSHI, M
• Publication Date: 1971-10

Media Info

• Serial:
  • TRAFFIC DIGEST AND REVIEW
  • Publisher: Northwestern University, Evanston

Subject/Index Terms

• TRT Terms: Computers; Control systems; Traffic control devices; Traffic regulations; Traffic signal control systems; Traffic signal timing
• Subject Areas: Highways; Law; Operations and Traffic Management;

Filing Info

• Accession Number: 00226148
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 5 1972 12:00AM