The Sustainable Road Surface Plan aims to achieve better and more sustainable infrastructures. The aim of this programme is to promote, through innovative public procurement, the application of more sustainable materials and technologies either in design, production, construction and maintenance of road surfaces, in order to generate new added value to their basic function of ensuring road safety. It also introduces other innovative aspects such as the participation and involvement of the successful tenderers and the evaluation system of the offers submitted.

More sustainable materials and techniques

By applying sustainable materials and techhnologies, the Plan seeks to promote the reduction of emissions, a circular economy, and economic sustainability and energy sustainability. Therefore, it proposes measures such as:

• Reduction in energy balance: manufacturing temperature (use of cold mixes) and road surface transportation and spread. Reduction in emissions and energy consumption, lower bitumen aging and improvement of working conditions.

• Use of products made from reused or recycled materials (milled material, tire rubber powder, iron and steel aggregates, ceramic waste from brickyards, engine oils, plastics, etc.).

• Increased durability and life cycle, and consequently reduction in material consumption and costs.

• Use of new technologies and new materials that make it possible for the road surface to become a source of energy (solar radiation, traffic).