This report summarizes the aims, objectives and results of a DecarboN8 Seedcorn funded project completed in 2021. The project sought to develop resources that could support greater incorporation of capital (embodied) carbon emissions into transportation models and scenarios. Owing to a number of challenges related to data access, data quality and processing resource requirements, the project failed to deliver the primary intended outcome – an open and extendable prototype web resource on capital carbon emissions in transportation projects. However, the project did develop a large novel dataset and successfully delivered a number of the intended secondary outcomes. Subsequently, the links forged and insights gained throughout the project ultimately resulted in a successful funding bid to support further development in collaboration with key stakeholders. Datasets compiled under the project were incorporated into development of a new database and spatial tool under the Department for Transport’s Shared Digital Carbon Architecture (SDCA) programme, in turn informing strategic decision making within Government departments and Arm's-Length Bodies. The opportunity to deliver this subsequent high-impact project would not have arisen without stakeholder engagement supported by the DecarboN8 Seedcorn fund and the Centre for Research into Energy Demand Solutions (CREDS)
