TRAPEZOIDAL PROJECTION THROUGH-BAND ANALYSIS APPLIED TO DESIGNING SIGNAL CONTROL PARAMETERS

The systematizing of offsets for a group of signaling equipment in controlling traffic signals is difficult. Many variations--such as intersection intervals, traffic conditions, and operation cycles--have to be taken into consideration, and therefore, vehicle through-bands in a systematized route are not easily designed. The modern optimum offset design method is based on computer systems, allowing traffic system operators to analyze problems from their desks. Various simulation systems have been developed and employed. Extensive labor, survey work, and analyses are still required, though, to operate such traffic simulation systems in a practical way. It appears that trial-and-error adjustments have to be performed at most signal control sites while checking physical conditions of traffic. The through-band offset design method is applied often because of simplicity of the mehtod in setting conditional data. However, it is assumed for a calculation that vehicles are smoothly driven in a vehicle through-band, so impractical results are sometimes derived. The method is preferred in less congested routes and time zones. This paper describes the trapezoidal projection through-band analysis, which allows an operator to freely, easily design practical driving conditions while continuously maintaining design data. An overview of the system and discussions on design theory and operation effects are provided. "Trapezoidal" relates to the fact that when inbound and outbound bandwidths are set differently from each other, a projection view for searching a band becomes trapezoidal.

  • 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:
    • Suetsugu, N
  • Conference:
  • Publication Date: 1995-11

Language

  • English

Media Info

  • Pagination: p. 16

Subject/Index Terms

Filing Info

  • Accession Number: 00716532
  • Record Type: Publication
  • Report/Paper Numbers: Volume 1
  • Files: TRIS
  • Created Date: Feb 26 1996 12:00AM