Sustainability promotion through asphalt pavements: A review of existing tools and innovations

Asphalt pavements, serving as the backbone of road networks worldwide, are crucial to transportation infrastructure. Conventional asphalt pavements have raised concerns due to their environmental impact and sustainability over time. This paper reviews emerging strategies, tools, and innovations used to promote the sustainability of asphalt pavements. It explores existing methodologies for assessing sustainability, including innovations in materials, design and construction practices, and maintenance and rehabilitation strategies. Life-cycle assessments of sustainable asphalt pavements containing innovative materials in terms of environmental impacts have been thoroughly investigated. Case studies are presented for practical applications of sustainability initiatives in asphalt pavement projects, lessons learned, and challenges encountered. The paper identifies future directions and research needs, emphasizing the importance of continued efforts to promote sustainability in asphalt pavements.