The LIFE HUELLAS project consortium has contributed to OpenDAP with part of its database. Specifically, carbon footprint data of materials and machinery used for construction of railway infrastructure have been provided, those developed in the frame of the LIFE HUELLAS project.

It should be noted that many of these materials and machinery are also used in other types of construction products. It is open to any EPDs Program Manager and for any tool for life-cycle assessment calculation. OpenDAP is part of inData pilot project. This is a European project to create a network that harmonizes environmental data. This includes common regulatios for data formatting and high data compatibility.