Unlocking systemic change: a socio-technical perspective on sustainable innovation in the asphalt paving sector

The asphalt paving sector plays a vital role in transportation systems, enabling mobility and fostering economic growth, particularly in rapidly urbanizing societies. Driven by societal demands and international agreements, the sector faces growing pressure to transition toward sustainability. Yet, despite national and international efforts, the widespread implementation of sustainable innovations remains limited due to systemic barriers embedded in governance structures, institutional arrangements, and established industry practices.

This PhD dissertation investigates the underlying dynamics behind the slow implementation of sustainable innovations in the asphalt paving sector. It examines the complex interactions among actors, rules, and practices that shape innovation processes. Drawing on systems thinking, the dissertation identifies persistent barriers that prevent promising innovations from gaining traction and reveals how these are interconnected and reinforced by broader structural conditions. By shedding light on the systemic nature of these obstacles and proposing actionable strategies, this research contributes to advancing the transition toward more sustainable road infrastructure.