Abstract
The aim of this article is to discuss direct effectiveness of SEA following the framework of the SEA Directive of the European Union in order to recommend measures to increase it. In the article an analytical framework for analysing SEA effectiveness is developed taking aspects of planning theory and social learning, strategicness, integratedness and timing of SEA into account. The framework is applied on the SEA concept of the European Union and put in the context of SEA and spatial planning in Austria. Finally, recommendations are made to enhance SEA effectiveness by different measures addressing different aspects of the SEA system and the SEA implementation in planning processes, such as the abandonment of screening, the advancement of SEA ‘ownership’ by planners and the reflection of a rational-collaborative SEA and planning model, as well as the ways environmental objectives and the appraisal of alternatives are implemented in a planning and SEA process.