CALCULATION OF THE OPTIMAL DRIVING SPEED OF CARS AND LORRIES (MINIMAL EMISSIONS AND FUEL CONSUMPTION) ON HIGHWAYS WITH DIFFERENT SPEED LIMITS

BEREKENING VAN DE OPTIMALE RIJSNELHEID VAN PERSONENAUTO'S EN VRACHTWAGENS (MINIMALE EMISSIES EN VERBRUIK) OP WEGEN MET VERSCHILLENDE SNELHEIDSLIMIETEN

Calculations have been made for the policy regarding speed limits for cars and lorries to get the lowest emissions and fuel consumption. Research has been done on motorways with speed limits from 50-130 km/h for cars and 50-100 km/h for lorries, highways with speed limits from 30-80 km/h, and roads in urban areas with speed limits from 10-50 km/h. Emissions from the polluting components such as nitrogen oxide, hydrocarbons, carbon dioxide and sulphur dioxide, are calculated. It is shown that a reduction of the emissions and fuel consumption can be achieved by decreasing the speed limits for cars and lorries on motorways. Optimal speeds should be 70 km/h for cars and 60 km/h for lorries. Besides the modification of the speed limits improvements can be achieved by a better traffic flow in particular in urban areas. Driving behaviour has also its influence on emissions. It is obvious that "quiet" driving behaviour, dependent of the situation and the use of an exhaust catalyser, is 35-85 percent lower than "wild" driving.

  • Corporate Authors:

    TNO MILIEUWETENSCHAPPEN TNO-MW

    PO BOX 6011
    DELFT,   Netherlands  2600 JA
  • Authors:
    • DEN TONKELAAR, WAM
  • Publication Date: 1991-11-8

Language

  • Dutch

Media Info

  • Features: References;
  • Pagination: 31 p.
  • Serial:
    • Issue Number: R 91/315

Subject/Index Terms

Filing Info

  • Accession Number: 00719678
  • Record Type: Publication
  • Source Agency: Institute for Road Safety Research, SWOV
  • Files: ITRD
  • Created Date: Apr 26 1996 12:00AM