An immersive video system that has been developed for the purpose of evaluating future traveller information system (F-TIS), in particular, F-TIS scenarios that rely on a pervasive computing infrastructure is presented. Immersive video uses multiple video streams captured from a first person perspective at key locations in a scenario. By dynamically reconstructing a user's visual and aural experiences, the immersive video system creates a lab-based framework that captures a number of contextual factors of real-world mobile information system use. Graphical user interfaces, displayed on a wearable display and a personal digital assistant, are used in the evaluation. Both the technical basis of the immersive video system and its application to the study of user perceptions and reactions to pervasive information services are presented.