Defining the Psycho-Social Determinants of Public Transport Use: An Integrated Theoretical Approach

Car use is engrained in our culture. Changing behaviour towards using more sustainable travel modes such as public transport is notoriously difficult, despite the increasing awareness of environmental problems caused by car use. Many models have attempted to identify the psycho-social determinants of pro-environmental behaviour. The present research tests an integrated model proposed by Bamberg and Möser in determining intention to use public transport in a sample of frequent drivers from the Greater Wellington region. The results support the integrated modelling approach. Intentions to use public transport are indirectly affected by awareness of environmental problems caused by car use mediated through social norms, guilt, perceived behavioural control and attitude. These constructs explain 77% of the variance in participants’ intention to use public transport. Theoretical and practical implications are discussed.