ABSTRACT
Agenda 2030 has 17 global development goals, and these include an economic dimension as the driving force to reaching social sustainability within the limit of the planet’s boundaries. In the long term, all decisions taken must be sustainable, which means that they must be based on:
Well-founded selection of measures
Established working methods
Measurable indicators for sustainability
We find tools for this in both life cycle assessments (LCA) and life cycle cost (LCC) calculations. The process scopes differ, where LCA compare environmental performance from cradle to grave while LCC mainly aim at determining the cost-effectiveness of alternative investments, including the use phase. In this paper, we explore the challenges faced when considering life cycle aspects when making subsequent decisions in the process from planning, design and procurement to management of road infrastructure. These challenges are related to system boundaries, scope as well as decision definition and delimitations. Examples are given of how decision makers can find support in our developed tools, such as Geokalkyl and climate calculations (GHG emissions).
