P lanning and acting on questions of physical space have increasingly become socially embedded practices, shifting from serving an abstract "public interest" to actively engaging the public. Central to this approach is a greater emphasis on the exchange of knowledge and the development of ideas through communication with users, residents, and community groups. With the communicative planning approach gaining ground, the role of nonprofessional forms of knowledge and understanding also becomes an important issue. Contemporary practices tend to be more open to a wider variety of inputs than more traditional forms of professional expertise. Great attention is currently given to means of organization such as platforms and rules of discussion that help participants to express themselves. At the same time, however, the question of substance-that is, the knowledge, arguments, and ideas used to justify decisions and actions on the ground-is often overlooked. As a result, in many cases the public's potential for challenging established views and reformulating problems in ways that allow creative ideas and solutions remains largely underused.The emphasis on organization over substance can be related to uncertainties about the role of nonexpert knowledge and how to reconcile this with expert forms of knowledge in constructive ways. Difficulties about these questions often begin with the fact that process facilitators encounter fundamental differences between planning officials and the public in the way they understand and value local environments. These differences, if insufficiently understood, may result in constraints on fruitful dialogue and constructive problem solving, as has been shown in many examples of planning practice throughout Europe (e.g., Greenhalgh and Worpole 1995;Malbert 1998;Enserink and Monnikhof 2000;Van Herzele, Collins, and Tyrväinen 2004). From cases observed in California, Campbell and Marshall (2000b) described how predicating decision making based on nontechnical knowledge remains a difficult issue. Among other things, they noticed a lack of "interpretative frameworks" available to planners to help them to better understand the different forms of nonexpert knowledge and views.This article aims to contribute to the planning practice that actually makes sense of local knowledge when working out what action to take in a particular situation. It first builds on theoretical insights into the structuring or "framing" of a situation as a
AbstractThis article examines the value of local knowledge in the creative phase of planning practice. It uses the case study of an urban renewal project in Antwerp to explore the ways that workshop participants made sense of the planning situation. Analysis of the "talks" identified shared interpretive "frames" employed by the lay participants. The article goes on to discuss how distinctive these were from the professionals' perspectives and what the consequences were for the material outcomes of the planning process. It was concluded that the public input was used to ...