Current research and evaluation practice is dominated by the separation of responses to road pricing among different disciplines and studies neglecting the complexity and interdependency of the impacts. This paper demonstrates the value of the combining data sources with three examples proving new insights into the responses to road pricing. First, subjective reports about the behavioural adaptation were related and compared to the GPS-measured as well as modelled responses. Second, the stated behavioural adaptation strategies were related to participants acceptability change. Third, socio-demographic variables from various surveys were combined to identify target groups with similar socio-demographic characteristics and similar responses to road pricing. Finally, some preliminary methodological recommendations are outlined to illustrate how an integrated approach to the investigation of responses to road pricing could be designed and implemented. For the covering abstract see ITRD E137145.
Samenvatting