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This paper investigates the potential of mobile communication systems to support informal learning about the concept of sustainability within the urban realm. Firstly, it outlines a brief overview of the design approaches followed in various implementations in terms of communicating and educating citizens over environmental issues, as well as the methodologies employed to achieve user engagement. Furthermore, the paper presents the design and evaluation of an application that sought to promote a more environmentally conscious urban mobility paradigm, via the provision of advanced transportation services in a Smart City context.

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Abstractlocative media is an emerging field of creative practice and a platform for experimenting with new experiences in the urban environment that has become increasingly interesting to artists. the use of locative media for artistic purposes has linked geography and maps to urban life and experience in new and sometimes unusual ways. this connection offers the possibility of various transformations in the traditional relationship between the mapping process and the physical space that it depicts. the map no longer merely depicts in a topdown manner the physical territory that it represents; rather, the territory inspires the artistic creation of various kinds of maps that may express, criticize or motivate different aspects of urban life. In this article we focus our interest on location-specific projects that make use of various media and location-sensing technologies such as gPS, in order to create subversive maps that amplify urban life and enrich the urban landscape with information, meaning and/or emotion. What we consider important in these attempts is the fact that apart from the aesthetic value of their work, artists are, in most cases, motivated by the prospect of raising public awareness on various issues such as the process of map-making, location and precise positioning, the ability to form social networks in the urban grid, surveillance, the tracking of human bodies or objects or how all these issues affect peoples' choices and everyday life.

This paper examines the issue of User Experience (UX) as applied to immersive Virtual Reality from the standpoint of environmental psychology and related fields as a complement to principles from the fields of product design, psychology of emotion, formal aesthetics etc. Partly on account of its generality, multidisciplinary nature, and broad applicability, UX continues to defy a single commonly accepted definition, a fact which necessitates a holistic treatment of the subject of spatial interaction design. Various approaches and models of environmental psychology, as well as approaches to usability and UX are outlined in light of the need to highlight the influence and effects of particular spatial designs to particular dimensions of UX. Additionally, the concept and constituent dimensions of environmental appraisal are similarly defined and analysed, and indicative experimental designs currently under development are briefly described.

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