Road construction using bio-based materials

This case study presents a recent construction works procurement - the upgrade done of the N62 road 'Tractaatweg' – which sought to include solutions made from bio-based materials. The approach to the upgrade is in line with the province of Zeeland’s ambition of encouraging a lower carbon economy through preferring bio-based products with a low carbon footprint, which also offer life cycle benefits.

The Dutch Province of Zeeland is one of the frontrunners in Europe applying bio-based public procurement with a view to stimulate the transition to a circular economy. In 2016 Zeeland adopted an Action Plan for Sustainable Procurement (2017 – 2020) in which it formalised its intention to use public procurement to create social value and to encourage more sustainable procurement actions (in general), including also bio-based procurement.

This procurement sought to commission a works contract to widen the N62 road 'Tractaatweg' (100 km/h) in Zeeuws-Vlaanderen from one to two lanes in each direction, and to build four new viaducts. The N62 is a major road connecting the seaports and the industrial areas of Ghent (in Belgium) with Terneuzen and Vlissingen (in the Netherlands). The procedure was carried out using a Competitive Dialogue approach. The works contract was assigned in February 2017, and preparatory work took place between March and August 2017. Commissioning is scheduled for early 2019.

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Road construction using bio-based materials