Abstract
Trondheim municipality is revising the municipal plan’s area section, aiming at reducing the climate footprint of existing and future infrastructure projects. New projects must have 30% lower greenhouse gas (GHG) emissions than reference projects. To achieve this, Trondheim municipality have developed a tool in collaboration with SINTEF to calculate and document GHG emissions from infrastructure projects. A key development is the customization of the tool (calculator) to ensure the effective integration of the municipality’s portfolio management and project follow-up. The tool can be used from the early stages and throughout the entire construction process, including all relevant aspects for the municipality’s assets and services. Standards, guidelines, and specific climate reporting tools were coordinated for a comprehensive data integration. Several test rounds were conducted with external consultants, from which insights and feedback were used iteratively to refine the tool across functionality, objectivity, aesthetics, and user-friendliness. Based on identified opportunities and limitations, a set of recommendations is provided for continuous improvement of the tool.