ARCADY: A COMPUTER PROGRAM TO MODEL CAPACITIES, QUEUES AND DELAYS AT ROUNDABOUTS

A computer program to model capacities, queues and delays at roundabouts is described. It incorporates the latest roundabout entry capacity formula and time-dependent queueing equations. The basic inputs are certain geometric characteristics of the roundabout, the turning proportions of the traffic, the percentage of heavy vehicles in the traffic and a time "profile" of demand flows (or less detailed demand flow information from which the program synthesises a profile). The program calculates, for each of a succession of time intervals, the capacity, queue length and delay for each entry and enables the growth and decay of queues to be monitored and the calculation of overall delay. A full example is included. (Author/TRRL)

  • Availability:
  • Corporate Authors:

    Transport and Road Research Laboratory (TRRL)

    Wokingham, Berkshire  United Kingdom 
  • Authors:
    • Hollis, E M
    • SEMMENS, M C
    • Denniss, S L
  • Publication Date: 1980

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00330763
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Report/Paper Numbers: LR 940 Monograph
  • Files: ITRD, TRIS, ATRI
  • Created Date: Aug 15 1981 12:00AM