The area of Urban Habitat of the Barcelona City Council has desgignated Smart Engineering to study and definite the criteria to develop a sustainability index for prioritizing investments in urban infrastructures in the city of Barcelona. From the tools and systems available to the City Council to prioritize investments, and defining the criteria and benchmarks to develop a sustainability index, Smart Engineering will develop a model to prioritize actions and projects of different types regarding urban infrastructures. The model will be developed by multicriteria techniques and based on the MIVES model, developed by the UPC among others.