EFFECTS OF DESIGN ALTERNATIVES ON QUALITY OF SERVICE AT SIGNALIZED DIAMOND INTERCHANGES

This paper examines the effects of minimum phase length and variations in the spatial arangement of ramp intersections on the capacity of diamond interchanges operated with 4-phase-overlap signalization. The introduction of practical minimum constraints on phase lenghts can significantly alter the performance characteristics of this type of interchange. This paper also illustrates a method by which interchange design can be assessed in terms of quality-of-service measures. A computer program, written in FORTRAN IV, was developed to speed up the analysis. Examination of some typical cases illustrates that an efficient design can be selected if one uses the program for a given set of minimum green-phase lengths and traffic demands.

Media Info

  • Media Type: Print
  • Features: Figures; References;
  • Pagination: pp 20-31
  • Monograph Title: Capacity and quality of service
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00127140
  • Record Type: Publication
  • ISBN: 0309023890
  • Files: TRIS, TRB
  • Created Date: Jan 14 1976 12:00AM