ASPECTS OF ENERGY INTERACTIONS AND EMISSIONS IN URBAN TRAFFIC

A vehicle emissions model has been developed which has been used in conjunction with a study of traffic patterns for four city driving types. The driving patterns are most closely explained by the halts per kilometre and average speed. Hydrocarbon emissions are closely related to average speed. The influence of acceleration/deceleration rates and frequency is a second order effect which can cause A +- 30% additional variation in hydrocarbon emissions. The dependence of nitrogen oxide on speed is small and acceleration variations can cause + - 70% variation in emissions at same speed. Traffic management as a primary nitrogen oxide control strategy appears practical. Steady state driving would reduce nitrogen oxide emission by 90%. Reductions of 60% have been achieved in the CBD area where traffic speeds are very low 12.9 - 19.3 kph. A queue and cruise system involving simple traffic signalization could accomplish this. /Author/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:
  • Hamilton, R B
• Publication Date: 1977-5

Language

• English

Media Info

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

Subject/Index Terms

• TRT Terms: Acceleration (Mechanics); Air quality management; Central business districts; Conferences; Energy; Engine idling; Exhaust gases; Fuel consumption; Highway traffic control; Hydrocarbons; Mathematical models; Nitric oxide; Nitrogen oxides; Private transportation; Speed; Traffic control; Traffic flow; Traffic signals; Travel patterns; Urban areas; Urban transportation
• Uncontrolled Terms: Models; Traffic patterns
• Geographic Terms: Australia
• Old TRIS Terms: Exhaust emission control
• ITRD Terms: 5405: Acceleration; 8006: Australia; 8525: Conference; 213: Energy; 232: Fuel consumption; 1808: Idling (engine); 5408: Speed; 654: Traffic control; 671: Traffic flow; 565: Traffic signal; 313: Urban area
• Subject Areas: Energy; Highways; Operations and Traffic Management; Public Transportation; Safety and Human Factors; Vehicles and Equipment; I96: Vehicle Operating Costs;

Filing Info

• Accession Number: 00165581
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: Analytic
• Files: ITRD, TRIS, ATRI
• Created Date: Jun 14 1981 12:00AM