Inglesant, P; Sasse, MA; (2005) Usability is a policy issue: Minimising the "Hassle Factor" in mobile payment of the Central London Congestion Charge. In: Proceedings of the EURO mGOV 2005: The 1st European Mobile Government Conference. (pp. pp. 254-263). Mobile Government Consortium International LLC: University of Sussex, Brighton, UK.

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Abstract

This paper presents a study of user responses to the implementation of a high-profile egovernment system, the Central London Congestion Charge. The approach is multi-disciplinary, combining human-computer interaction (HCI) and socio-technical systems (STS) approaches to produce an analysis of usability in the payment interactions. Based on interviews with charge payers, we show that usability is an issue in the payment of the charge; this is compounded by the short time-scale enforced with penalties, and the resulting perception is of an adversarial system. SMS is a possible payment route, but currently social and policy reasons work against it. In some social contexts, the simplicity of SMS is appropriate, whereas in others, the familiarity and richer functionality of the Internet and phone are more usable.

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