Benjamin Allbach, Martin Memmel, Peter Zeile, Bernd Streich
New technologies like smartphones provide a variety of opprtunities for the traditional fields of work and methods in urban and spatial planning. It is important to analyse the changes in geobased information and communication platforms to understand their potential impact on scientific methods in spatial planning. One of these new technologies is the so called mobile augmented reality. This papers focuses on the methods and technologies which are available for merging the real world with virtual objects/information. Which benefits are possible for urban planning by using mobile geoweb applications and augmented reality? Is it possible to lower the participation hurdle for citizen contributions regarding planning processes? Besides, the question is whether built-in sensors in mobile devices can deliver meaningful data for planning and for the so called “urban sensing.” The combination of data from different sources, mainly aquired through the World Wide Web, results in new opportunities to display and analyse information in a mixed reality enviroment, as well as to interact with this information. The paper presents an evaluation of existing mobile augmented reality applications and gives various examples of potential use cases for these applications in urban planning. Through the newly developed RADAR system, it is possible to contribute information to different mobile augemented reality services and thereby it serves as an example to present scenarios and to illustrate the presented findings.