FUEL ECONOMY IN PEAK HOUR TRAVEL

The significance of urban road vehicles as the largest user of liquid transport fuel is pointed out. In an investigation aimed at assessing the fuel used against inertia forces (which together with rolling resistance form the most important components of energy usage in urban driving), fuel consumption and speed/time data have been obtained for a passenger vehicle travelling over a variety of routes in urban Melbourne. Fuel consumption has been related to an acceleration index (derived from the speed/time trace) which represents the acceleration conditions experienced by the vehicle. This index is proposed as a basis for a road fuel consumption test under "floating car" conditions and for determining aggregate fuel consumption on a section of arterial road. The acceleration conditions experienced by the test car were found to differ from those which would occur in the saa draft standard city cycle for petrol consumption (i.e. That prescribed by adr.27a for emissions) and these differences are illustrated. /TRRL/

• Supplemental Notes:
  • Paper From the Jubilee Conference of the Society of Automotive Engineers--Australasia, Melbourne, Australia, May 2-6, 1977.
• Corporate Authors:

  Society of Automotive Engineers

  191 Royal Parade
  Parkville, Victoria 3052,   Australia 
• Authors:
  • Johnston, RRM
  • TRAYFORD, R S
  • WOOLDRIDGE, M J
• Publication Date: 1977-5

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: n.p.
• Serial:
  • Issue Number: 7710

Subject/Index Terms

• TRT Terms: Automobiles; Conferences; Economics; Energy; Engine idling; Evaluation and assessment; Fuel consumption; Operating costs; Peak periods; Speed; Test tracks; Testing; Travel time; Trip length; Urban areas; Urban transportation; Vapor phases
• Old TRIS Terms: Accleration
• ITRD Terms: 5405: Acceleration; 8525: Conference; 255: Economics; 213: Energy; 9020: Evaluation (assessment); 232: Fuel consumption; 1808: Idling (engine); 697: Journey time; 221: Operating costs; 612: Peak hour; 5408: Speed; 2789: Test track; 313: Urban area
• Subject Areas: Economics; Energy; Highways; Public Transportation; Safety and Human Factors; Vehicles and Equipment; I96: Vehicle Operating Costs;

Filing Info

• Accession Number: 00165580
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS, ATRI
• Created Date: Jun 14 1981 12:00AM