Current research and evaluation practice is dominated by the separation of car drivers’ responses to road pricing among different disciplines and studies neglecting the complexity and interdependency of the impacts. The paper demonstrates the value of the combining data sources by four examples based on the same group of persons providing new insights into the responses to road pricing. First, subjective reports about the behavioural adaptation were related and compared to GPS-measured behaviour. Second, stated preferences (SP) from a pre-experiment were compared to following revealed preferences. Third, the stated behavioural adaptation strategies were related to participant’s acceptability change. And fourth 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 methodological recommendations are outlined to illustrate how an integrated approach to the investigation of responses to road pricing could be designed and implemented.
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