Exploring The Role of Environmental Attitudes and Zero-Emission Technologies in Shaping Intentions for Sustainable Mobility: An Empirical Analysis in the UK

In this study, we investigate the determinants of the perceived importance of environmental considerations in travel behaviour and the intention to use public transport in response to the introduction of Zero-Emission Buses (ZEBs) in the UK. Drawing data from the UK National Travel Attitudes Survey (NTAS) Wave 9 (n=1,954), we estimated ordered probit and logit models grounded in an integrated theoretical framework, which combines the Theory of Planned Behaviour (TPB) and an adaptation of Triandis’ Theory of Interpersonal Behaviour. The model estimation results show that while the majority of respondents do consider environmental impact in their mode choice, only a minority express willingness to use Zero Emission Buses (ZEBs), indicating a potential value-action gap. Sustainable travel habits, pro-environmental attitudes and lower car dependency positively influence both travel attitudes, whereas high-income individuals do not seem willing to adapt their travel choices in light of their environmental considerations. The findings of the study highlight the critical role of demographic characteristics and perceived behavioural control in shaping sustainable mobility choices. They underscore the need for targeted measures to support widespread adoption of Zero Emission Buses and to promote climate-conscious mobility by improving accessibility and raising environmental awareness.