This topic of this report is the future light rail in the Aarhus area and its influence on modal choice for commuters’ choice. The purpose of implementing a light rail system in Aarhus is to enhance public transport in the region, in order to attract more passengers to the public transport system. This study seeks to investigate whether such a modal switch seems likely to take place, which is done by conducting from a survey of commuters’ current transportation habits, their possibilities to change habits, and their opinions on transport and mobility. In the report two different approaches to the study of transportation habits and modal choice is described, a conventional and a mobility-sociological. The latter will form the basis for the analytical framework employed in this study, but elements from the former will be included as well. Methodologically the study is based on a case study in Aarhus N, where the new section of the light rail project's first phase will be constructed. The case study covers 3 workplaces whose employees can be considered potential users of the light rail. To provide a thorough understanding of the complexity involved in people’s choice of transport mode, the study includes both quantitative and qualitative methods. The first part of the analysis is based on a questionnaire answered by employees at the 3 workplaces. The second part of the analysis is based on qualitative interviews with 3 respondents to the previously mentioned questionnaire, who are chosen based on differences in demographic characteristics as well as modal choice and attitudes towards transport. To complement these methods I have consulted a set of international experts who are experienced with light rail implementation in urban settings and its impact on commuting patterns. It is concluded that the light rail has a potential to change the transport behavior in Aarhus, as the majority of commuters are in favor of improving the public transport in Aarhus. A majority of commuters also indicate that they would use the light rail, but not necessarily on a daily basis. The study further demonstrates that there is not necessarily any consistence between commuters’ attitudes towards transport and their willingness to make use of the future light rail system. Therefore it is argued that it is necessary to supplement such a system with both push and pull mechanisms if the light rail is to truly have an impact on commuters’ transport choices, such as high parking fees in the city center, car-free zones, to give the light rail priority at junctions and intensive promotion of the light rail in general.