Spatial planning is inherently prone to conflict, often raising questions of institutional competence, professional justification, spatial justice and legitimacy of planned interventions. Despite their frequency, conflicts in spatial planning in Slovenia have not been thoroughly examined. As siting procedures for motorways and expressways have historically been particularly contentious, our research focuses on this field.

Our study is based on a literature review, semi-structured interviews and text analysis using Atlas.ti. The results show that conflicts depend strongly on the socio-spatial context, rendering them difficult to predict or prevent. Reducing conflict requires flexible and deliberative planning approaches that enable open communication and a better understanding of the social, environmental and economic impacts of planned projects.

Contrary to theoretical assumptions, conflicts do not solely arise from public opposition, but occur throughout the planning process, including within the professional sphere. As conflict-resolution approaches prioritise public participation, conflicts within the expert community often remain unresolved, increasing the likelihood of public opposition.