SOME DATA ON THE EFFECTS OF FREE TRANSPORT

THIS PAPER INVESTIGATES THE CONSEQUENCES OF FREE PUBLIC TRANSPORT ON MODAL SPLIT FOR THE JOURNEY TO WORK. EMPLOYEES OF THE LONDON TRANSPORT EXECUTIVE (LTE). WHO RECEIVE FREE USE OF BUSES AND TUBES AND A SUBSTANTIAL CONCESSION ON BRITISH RAIL SERVICES, WERE SURVEYED AND THEIR TRAVEL AND OTHER CHARACTERISTICS COMPARED WITH THOSE OF A SAMPLE OF OVER 20,000 OTHER CENTRAL LONDON WORKERS WHO PAY THE NORMAL PRICES. IT WAS FOUND THAT 6.6 PERCENT OF THOSE PAYING PRICES TRAVEL TO WORK BY CAR, BUT ONLY 2.2 PERCENT OF THE LTE EMPLOYEES DO SO. THE USE OF CAR BY CAR OWNERS WAS LESS, AND THE AVERAGE DISTANCE TRAVELLED TO WORK BY USERS OF EACH OF THE PUBLIC TRANSPORT MODES GREATER, FOR THE LTE EMPLOYEES, ALTHOUGH THE OVERALL AVERAGE JOURNEY DISTANCE WAS ABOUT THE SAME. FIGURES FOR THE PROPORTION OF PEOPLE TRAVELLING BY EACH MODE TO CENTRAL LONDON IN THE MORNING PEAK IN THE PERIOD 1954-1969 ARE COMPARED WITH THE CHANGING RELATIVE COSTS OF EACH MODE. A MODEL IS GIVEN WHICH DESCRIBES REASONABLY WILL FOUR OUT OF THE SIX POSSIBLE CHOICES BETWEEN PAIRS OF MODES, AND THE RELATION TO THE DEFLATED COSTS IN PENCE PER PASSENGER MILE OF EACH MODE. THE SURVEY AND TIME SERIES DATA AS A WHOLE WERE BROADLY CONSISTENT WITH A SINGLE UNDERLYING MODAL SPLIT DEMAND CURVE, THE EQUATION OF WHICH IS GIVEN. IT WAS FOUND THAT MODAL SPLIT/COST- DIFFERENCE RELATIONS CONSISTENT WITH THE CROSS-SECTION DATA WERE QUITE CLOSE IN SOME RESPECTS TO THE RESULTS OBTAINED BY EXTRAPOLATION OF THE TIME SERIES DATA. THE TWO METHODS AGREED IN SUGGESTING THAT IF THE EXISTING TUBE AND BUS SERVICES WERE FREE AND THE EXISTING BRITISH RAIL SERVICE WAS OPERATED AT 25 PERCENT OF THE PRESENT LEVEL OF FARES, THE EXPECTED PROPORTION OF WORK JOURNEYS TO CENTRAL LONDON BY CAR WOULD BE ABOUT THE THIRD OF ITS PRESENT LEVEL. EXPECTED BRITISH RAIL USE WOULD BE ABOUT THREE-QUARTERS OF ITS PRESENT LEVEL, AND BUS AND TABE USE TOGETHER ABOUT A THIRD MORE THAN THE PRESENT LEVEL. THE ESTIMATES DO NOT TAKE ACCOUNT OF FEEDBACK EFFECTS, WHICH COULD BE SUBSTANTIAL. /TRRL/

  • Corporate Authors:

    Transportation Planning and Technology

    ,    
  • Authors:
    • Goodwin, P B
  • Publication Date: 1973

Media Info

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Filing Info

  • Accession Number: 00228547
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: TRIS
  • Created Date: Jun 19 1982 12:00AM