FUEL AND TIME SAVINGS ASSOCIATED WITH THE COORDINATED TRAFFIC SIGNAL SYSTEM ALONG ALBANY HIGHWAY, PERTH

An assessment is made of the fuel consumption and travel time savings associated with the introduction of the SCATS computer coordinated signal system along a 4 km section of Albany highway in Perth. A computer instrumented vehicle was used to collect travel time and fuel data before and after signal coordiantion along the major route, and Main Roads Department (MRD) data were employed to assess changes in approach roads. These data were analysed together with traffic volumes to estimate the system effects of signal coordination. In assessing the fuel consumption changes, two fleet fuel consumption models were used in addition to the instrumented vehicle data: the MRD's own fuel consumption model and a fleet fuel consumption model developed in Perth by Pitt. The three methods gave very similar percentage fuel savings (1.5 per cent to 3.4 per cent) which were all close to the probable errors and hence are not very significant. Overall travel time savings were of a similar order. The analysis shows that the signal coordination system has a strong negative impact in many approach roads and in the minor flow direction during the evening peak. These impacts markedly reduce the overall time and fuel benefits of the signal coordination system. The results of this assessment are briefly compared with similar studies from Melbourne and Sydney. Changes to the system may allow a better balance between the major and minor traffic flows and hence more overall savings but the more dispersed traffic patterns in Perth do not readily lead to easy fuel and time savings. (Author/TRRL)

  • Corporate Authors:

    Murdoch University, Australia

    South Street
    Murdoch, Western Australia,   Australia 
  • Authors:
    • NEWMAN, PWG
    • Kenworthy, J R
    • Rainford, H
    • Lyons, T J
  • Publication Date: 1984

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 58 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00399458
  • Record Type: Publication
  • Source Agency: ARRB
  • Report/Paper Numbers: 5/84
  • Files: ITRD, TRIS, ATRI
  • Created Date: Aug 25 2004 1:42AM