Bridging the Shift from Linear to Circular Economy in Road Infrastructure: The Norwegian Stakeholders’ Perspectives on Challenges and Opportunities
摘要
Current linear economic road construction and maintenance methods, characterized by significant use of virgin resources and substantial greenhouse gas (GHG) emissions, are in sharp contrast to circular economy (CE) concepts that emphasize resource efficiency and emissions reductions. Despite the considerable energy use, material consumption, and emissions involved in road construction, this sector has been relatively underexplored in CE research. This paper aims to bridge this gap by investigating the transition from linear to circular road infrastructure, focusing particularly on the Norwegian construction industry. The study identifies barriers and drivers to this shift, intending to contribute to the concept of circular road infrastructure. Employing a mixed-methods approach, the research integrates a web-based survey among Norwegian road industry actors, augmented with six semi-structured interviews with diverse stakeholders, to establish a framework of barriers and drivers to CE. The findings suggest that economic, regulatory, and political factors are major barriers to circularity, but these could be transformed into drivers if key conditions are changed.