ABSTRACT
This chapter provides an overview of a research project concerning the long term effects of mobilisation processes in the field of transport and infrastructure. It discusses Maarten Hajer's argumentative approach, and introduces framework based on Hajer's work and designed to study processes of mobilisation and institutionalization. Processes of mobilisation are always directed to a specific policy proposal or measure. Hajer uses the concept of discourse institutionalisation to explain the way in which discourses become anchored in policy practices. Hajer's framework is a powerful tool, suitable for application in several fields. Hajer's analysis is dynamic, since it involves discursive interaction and discourse institutionalisation and structuration. In order to reconstruct decision-making it is necessary to select the crucial policy issues of a decision-making process. The outcome of the decision-making process is a temporary definition of the most important aspects of the policy problem.
