AbstractIn order to detect changes in daily average vehicle kilometres travelled (VKT) induced by a large-scale TravelSmart intervention in Melbourne, a panel of households was asked to complete before and after surveys, which included week-long odometer readings. In contrast to results reported from previous TravelSmart applications, the Melbourne program did not induce a statistically significant change in the average daily VKT when measured 1 year after the intervention. Multiple regressions revealed that the variability in change in VKT was better explained by socio-demographic variables than by the TravelSmart treatment. The change in VKT was also found to be strongly negatively correlated with the average daily vehicle kilometres recorded in the before survey—indicating the possibility of the ‘regression-to-the-mean’ effect well known in the road safety literature. The conditions under which the regression-to-the-mean effect may create the illusion of a positive TravelSmart program impact on the reduction in daily average VKT are examined. It is concluded that, in the context of voluntary travel behaviour change evaluations, greater attention should be paid to instrument reactivity arising from the impact of the before travel survey on TravelSmart uptake and/or on change in VKT, and to regression-to-the-mean effects.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Using odometer readings to assess VKT changes associated with a voluntary travel behaviour change program


    Beteiligte:
    Seethaler, Rita (Autor:in) / Rose, Geoff (Autor:in)

    Erschienen in:

    Transport Policy ; 16 , 6 ; 325-334


    Erscheinungsdatum :

    2009-01-01


    Format / Umfang :

    10 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Using odometer readings to assess VKT changes associated with a voluntary travel behaviour change program

    Seethaler, R. / Rose, G. | British Library Conference Proceedings | 2009




    Six-Wave Odometer Panel for Evaluation of Voluntary Travel Behavior Change Programs

    Stopher, Peter / Swann, Natalie | Transportation Research Record | 2008


    Understanding voluntary travel behaviour change

    Ampt, E. / Association for European Transport | British Library Conference Proceedings | 2003