This thesis examines how the interior of cars, on a conceptual level, can be designed in smaller electrical work vehicles that are used for deliveries, park management and property management in urban environments. The thesis focuses on how the interior can be adapted in order to fit into a circular economy where the car is leased to the customer for an extended period of time. The thesis is supported by a case from the company Inzile that want to examine how their car interior should be designed to fit into the company’s circular business model and at the same time be perceived as a user-friendly product.  The five actors whose needs and requirements impact the car interior are identified. The actors are: drivers, buyers (the employees that purchase vehicles for companies), service technicians, employees at Inzile and policymakers. Respondents from all groups except policymakers are interviewed. The interviews are analyzed, and the actors needs and requirements in relation to the car interior are identified. The identified needs are: intuitive design, a good view of the surroundings, a comfortable and adaptable drivers position, a feeling of safety, a durable interior that is easy to clean, a car that is easy to get in to and out of, a comfortable temperature, comfortable sounds in the interior, storage and an environmentally friendly car.  After the needs have been identified concepts and possible solutions are developed to create suggestions on how the interior of a small electrical work vehicle can be designed to fit into a circular business model. The concepts are based on the identified needs and the results from the interviews and the literature review. The proposed solutions focus on adapting the interior for remanufacturing, material selection and creating a modular, timeless and ergonomic design. In addition to these design proposals, it is also important that an overall concept is created where the color, shape and functions of the driver environments are clearly defined to create a car interior that remains uniform even after repairs and remanufacturing.

Uppdragsgivare för examensarbetet är Skanska Sverige AB, Region Mellansverige väg- och anläggning. Examensarbetets centrala del handlar om klimatpåverkan, en fallstudie görs mot ett pågående väg- och anläggningsprojekt för att studera projektets växthusgasutsläpp. Syftet är att analysera stora klimatbelastande faktorer i projektet samt diskutera och lyfta fram potentiella åtgärder för klimatbesparing. Författarna har tagit del av Skanskas interna klimatkalkyl som kartlägger miljöutsläpp hos projektet. Utifrån klimatkalkylens poster granskades de stora, relevanta och påverkbara utsläppen. Grävmaskiner och dumper har en sammanlagd andel på 30 % av projektets totala andel växthusgasutsläpp. Dessa maskiner drivs idag med fossil diesel och låginblandad RME. Att byta drivmedel till HVO100 medför en reducering av växthusgasutsläpp med 71 % för maskinerna och sänker projektets totala utsläpp med 20 % vilket är den åtgärd som ger bäst resultat. Även ett drivmedelsskifte till 100 % RME ger en 48 % reducering av maskinernas utsläpp och sänker hela projektets utsläpp med 13 %. Examensarbetet lyfter problematiken angående den bristande tillgången till hållbara råvaror för biodrivmedelsproduktion och presenterar forskning för framtida råvarupotentialer. Hur massor hanteras i ett vägprojekt har stor betydelse för byggskedets klimatpåverkan. Skanska har i projektet återanvänt en del av schaktmassorna och gamla betonggrunder som utfyllnadsmaterial samt fräst upp asfalt och återanvänt det som bärlager i uppbyggnaden för ny väg. Den sammanlagda besparingen för dessa tre åtgärder är cirka 4 % av projektets totala växthusgasutsläpp. Hade återstående mängd fall A-massor återanvänts hade besparingen ökat med cirka 10 % av projektets totala växthusgasutsläpp. Slutsatsen är att det finns potential att reducera utsläppen i projektet tack vare byte av drivmedel samt återanvändning av schaktmassor. / The client for the degree project is Skanska Sweden AB, Region Central Sweden Road and Construction. The central part of the thesis is about climate impact, a case study is carried out against an ongoing road and construction project to study the project's greenhouse gas emissions. The aim is to analyze major climate-burdening factors in the project and to discuss and highlight potential measures for climate saving. The authors have taken note of Skanska’s internal climate calculation that map environmental emissions at the project. Based on the items of the climate calculation, the large, relevant, and avoidable emissions were examined.  Excavators and dump trucks have a total share of 30 % of the project's total share of greenhouse gas emissions. The machines are currently powered by fossil diesel and low-mix RME. Changing fuel to HVO100 results in a reduction of greenhouse gas emissions by 71% for the machines and reduces the project's total emissions by 20%, which is the measure that gives the best results. Even a fuel shift to 100% RME provides a 48% reduction of the machines emissions and lowers the entire project's emissions by 13%. The degree project lifts the problem regarding the lack of access to sustainable raw materials for biofuel production and presents research for future commodity potentials.  How masses are handled in a road project is of great importance for the climate impact of the construction phase. In the project, Skanska has reused some of the excavation rubble and old concrete foundations as fillers and milled up asphalt and reused it as a bearing in the construction for a new road. The total saving for these three measures is approximately 4 % of the project's total greenhouse gas emissions. Had the remaining amount of case A-masses been reused, the savings would have increased by about 10 % of the project's total greenhouse gas emissions.  The conclusion is that there is potential to reduce emissions in the project thanks to the change of fuel and reuse of excavation rubble.