STUDIES ON THE AUTOMATIC CONTROL OF FREEWAY INTERSECTIONS FINAL REPORT (PHASE 1) ON EES 276A

THE MERGING OF AUTOMATED VEHICLES INTO AN AUTOMATICALLY CONTROLLED TRAFFIC STREAM HAS TWO PRIMARY ASPECTS: (1) THE MACROSCOPIC OR SYSTEMS ASPECT WHICH IS INVOLVED BOTH WITH THE SIMULTANEOUS MERGING OF A LARGE NUMBER OF VEHICLES AT MANY INTERSECTIONS AND THE RESULTING EFFECTS ON SYSTEM PERFORMANCE, AND (2) THE MICROSCOPIC ASPECT WHICH IS CONCERNED WITH CONTROLLING THE BEHAVIOR OF A VEHICLE DURING THE MERGING MANEUVER. THIS LATTER ASPECT IS DISCUSSED. THE CONDITIONS FOR AN ACCEPTABLE GAP FOR MERGING ARE SPECIFIED, AND THE NECESSITY FOR A FREQUENT MONITORING OF THIS GAP IS DISCUSSED TOGETHER WITH ONE METHOD FOR IMPLEMENTING SUCH MONITORING. THE REQUIRED TIME-ACCELERATION CHARACTERISTICS OF A MERGING VEHICLE ARE EXAMINED, AND THE CONDITIONS UNDER WHICH THIS VEHICLE CAN BE INSERTED INTO AN AUTOMATICALLY CONTROLLED TRAFFIC STREAM ARE SPECIFIED. THIS SPECIFICATION IS WITH RESPECT TO THE AUTOMATIC LONGITUDINAL CONTROL SYSTEM DEVELOPED AT THE OHIO STATE UNIVERSITY. /AUTHOR/

• Supplemental Notes:
  • No 14160(0) (EES 276), NO 26
• Corporate Authors:

  Ohio State University, Columbus

  190 North Oval Drive
  Columbus, OH  United States  43210

  Ohio Department of Highways

  Columbus, OH  United States  43210

  Bureau of Public Roads /US

  400 7th Street, SW
  Washington, DC  United States  20590
• Authors:
  • Asghar, M H
  • Fenton, R E
  • Arya, V J
• Publication Date: 0

Subject/Index Terms

• TRT Terms: Acceleration (Mechanics); Automatic control; Freeways; Gap acceptance; Interchanges; Merging traffic; Time; Vehicular phase
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00224947
• Record Type: Publication
• Source Agency: Bureau of Public Roads /US
• Files: TRIS
• Created Date: Jul 6 1970 12:00AM