THE DISPERSION OF PLATOONS OF TRAFFIC

The project is concerned with the measurement and analysis of platoon dispersion downstream of a signalised intersection on a divided carriageway, multi- lane, arterial road. The project first develops a method of collecting data to enable the dispersion of platoons to be studied, using the vehicle detector data acquisition system developed by the Australian Road Research Board. Detectors were placed on the eastbound carriageway of the Princes Highway 200, 400, 600, 800, 1200, and 1600 metres downstream from the Huntingdale road intersection, Oakleigh. Axles passing each site were recorded between 5.18 p.m. and 6.45 p.m. on a typical weekday afternoon and evening. This period began during the height of the peak traffic, and ran through to the shoulder of the peak. Supplementary data were recorded at the Huntingdale road intersection on the initial platoon and its composition. Data on 47 platoons were obtained from all sites, except 1600 M downstream, where recording faults allowed only 3 platoons to be recorded. The second stage of the project involved writing 22 computer programs to analyse the data obtained to produce values for parameters which describe the dispersion of platoons, aspects of the whole traffic flow, and visual presentation in the form of histograms. The third stage involved comparing the values of parameters obtained, between sites, at the same site for different platoon sizes, and between platoons of similar size at the same site but divided into platoons with and without multiaxle vehicles. The final stage of the project involved the identification of areas for further work. Three areas were defined: improvements to data collection; extension of data analysis; and collection of data from a variety of sites. (Author/TRRL)

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  • Corporate Authors:

    Monash University

    Wellington Road
    Clayton, Victoria  Australia  3800
  • Authors:
    • SMELT, J M
  • Publication Date: 1983-11

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Filing Info

  • Accession Number: 00385393
  • Record Type: Publication
  • Source Agency: ARRB
  • Report/Paper Numbers: Monograph
  • Files: ITRD, TRIS, ATRI
  • Created Date: May 30 1984 12:00AM