This thesis aim is to study the usage and experience of the sustainability tool SUNRA (Sustainable National Road Agency) as well as the tool's contribution to the Swedish Transport Administration’s sustainability work in the East link project. The usage and the experience with the SUNRA tool is presented partly based on the interviews conducted and by comparing the previous research found in field of sustainability tools. The ambition of ERA-NET Roads was to provide a sustainability tool that is divided into three frameworks and takes a holistic approach to the sustainability issue of traffic authorities in Europe. This study highlights areas that the research emphasizes; Sustainability work and major projects, infrastructure projects and the overall perspective, sustainability tools in projects, and communication of sustainability work. Through a qualitative semi structured interview study, five themes were identified: why SUNRA was chosen, utility usability, structure of sustainability work, organization around SUNRA and how the communication appears in the East link project. The result of the study shows that the usage of the SUNRA tool in many ways correspond with the earlier research, by taking a holistic perspective on the sustainability work and to contribute with a starting point in the sustainability work. The result of the study also shows that the SUNRA-tool doesn’t line with the earlier research when the shaping of and the communication with the tool has not been satisfactory.

Rapportens syfte har varit att uppmärksamma återanvändningspotentialen hos jordmassor och hur resurseffektivitet kan optimeras i projekt Ostlänken samt stora infrastrukturprojekt i allmänhet. Det praktiska syftet med studien är att bidra till en mer hållbar masshantering i projekt Ostlänken. Denna rapport har skrivits i form av en fallstudie med två typfall där triangulering har implementerats i forsknings-metodiken för att kombinera kvalitativa med kvantitativa metoder. Kriterier för rapportens analys-metod är baserad på en samlad effektivitetsbedömning där analyserade kriterier är ekonomi, klimat och risk. Resultatet indikerar att jordmassor som transporteras med semitrailer utanför ett projektområde till en fiktiv deponi-plats är både mer kostsamt och emitterar mer CO2-ekv. jämfört med jordmassor som transporteras med dumper innanför ett projektområde för återanvändningsändamål. Analysen visar att en ökad maxlast i kombination med en kortare sträcka är det mest kostnadseffektiva alternativet. Studien belyser även vikten av att inkludera hela värdekedjan (beställare-konsult-entreprenad) och uppdatera branschens annars konservativa förhållningssätt gällande masshanteringsarbetet. / The purpose of the report is to pay attention to the reuse potential of soil masses in infrastructure projects, specifically the East Link Project and how resource efficiency can be optimized. The practical purpose of the study is to contribute to a more sustainable mass management in the East Link Project. This report has been written in the form of a case study with two types of cases where triangulation has been implemented in the research methodology to combine qualitative with quantitative methods. Criterions for the analytical method of the report are based on an overall efficiency assessment, where analyzed criterions are economy, climate and risk. The result indicates that excavated soil masses that are transported by semi-trailers outside the project area to a fictional landfill are costlier and emit more CO2 equivalents than soil masses that are transported by a dumper truck inside the project area for reuse purposes. The analysis indicates that an increased maximum load in combination with a shorter distance is the most cost-efficient option. The study also highlights the importance of including the entire value chain (client-consultant-contractor) as well as updating the industry's otherwise conservative approach to mass management.