EXCESS FUEL CONSUMED BY A PASSENGER CAR WHEN PASSING ANOTHER CAR MOVING IN THE SAME DIRECTION

DATA WERE OBTAINED ON EXCESS FUEL CONSUMED BY PASSENGER CARS DURING TYPICAL PASSING MANEUVERS ON HIGHWAYS CARRYING MODERATE TRAFFIC FLOWS. EXCESS FUEL CONSUMED WAS DEFINED AS THE DIFFERENCE BETWEEN FUEL CONSUMED ON LEVEL ROADS, UPGRADES, AND DOWNGRADES FOR UNIFORM SPEED RUNS AND FOR RUNS INCLUDING PASSING MANEUVERS. ROAD TESTS WERE MADE ON A FOUR-LANE DIVIDED HIGHWAY WITH A HIGH TYPE PAVED SURFACE. MAXIMUM ACCELERATIONS AND SPEEDS DURING PASSING AND DISTANCES AND ELAPSED TIME FOR PASSING WERE MEASURED. SPOT SPEED WHEN WHEN RETURNING TO THE TRAVEL LANE IN FRONT OF THE PASSED CAR WAS RECORDED. EXCESS FUEL CONSUMED FOR PASSING WAS GREATEST ON THE DOWNGRADE AND LEAST ON THE UPGRADE FOR TEST RUNS AT SPEEDS BETWEEN 25 AND 45 MPH. FOR EACH PASSING MANEUVER, INCREASED EXCESS FUEL CONSUMED ACCOMPANIED INCREASED SPEEDS TO A MAXIMUM AT A PARTICULAR SPEED AND THEN DECREASED AT HIGHER SPEEDS.

  • Supplemental Notes:
    • No 29, pp 14-15
  • Authors:
    • Claffey, P J
  • Publication Date: 1966-7

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  • Accession Number: 00201150
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Nov 18 1994 12:00AM