Jarkko J. Erikshammar

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• Doctor of Engineering
• Senior Lecturer at Luleå University of Technology

SAMMANFATTNING Samhällsbyggandet en betydande påverkan på klimatförändringarna. Enligt Boverket står byggsektorn för hela 19% av Sveriges inhemska utsläpp av växthusgaser. Sverige strävar efter att senast år 2045 uppnå nollutsläpp av växthusgaser. 20% av den transporterade vikten av transporter i Sverige är byggrelaterade, vilket innebär att transp...

Om Sverige ska nå sina klimatmål måste även anläggningsbranschen, som står för 40% av de globala utsläppen av växthusgaser, bidra till en hållbar utveckling. Produktionsprocessen av vägentreprenader innebär transporter av stora mängder med massor som även bidrar till stora avfallsmängder. En effektiv planering krävs för att optimera en massbalans,...

Bygg- och anläggningsbranschen har, förutom en låg produktivitet där icke-värdeskapande aktiviteter uppgår till 30–35% av projektets totala produktionskostnad, en påverkan av det globala utsläppet av växthusgaser på upp till 40%. Utsläpp av växthusgaser, såsom koldioxid och metan, och förbrukningen av resurser inom byggbranschen måste minska krafti...

Svensk byggindustri står för en stor del av Sveriges klimatpåverkan. Omvänd logistik kan bidra till minskad klimatpåverkan genom reduktion av avfall. Företagen behöver modeller som stöttar beslutsfattande inom omvänd logistik för att säkerställa en långsiktig hållbarhet. Studien strävar därför mot att skapa en djupare förståelse kring området omvän...

Purpose–A comprehensive intervention test platform, Valla Coach, including quantitative and qualitativemethods to measure and improve workflows on site and promote coaching and collective learning has beendeveloped jointly by researchers and practitioner. The study aims to describe the methodologicalunderpinning of the platform, and discusses the p...

kad samverkan i försörjningskedjan genom sälj-och verksamhetsplanering: En analys av ett SME sågverks metod och process Dr. Jarkko Erikshammar 1 och Professor Lars Stehn 2 1. iTid Tarinfo AB Vattugatan 13 972 39 LULEÅ 070-6689772 jarkko.erikshamar@itid.se 2. Luleå tekniska universitet Institutionen för Samhällsbyggnad och Naturresurser 971 87 LULEÅ...

The position taken in this thesis is that a small and medium sized supplier makes a strategic choice to integrate their supply chain with industrialized house-building companies in order to deliver customer value and sustain competitive advantage. Customer values for industrialized house-building means delivery reliability, product quality, supply...

Industrialized house-building is based on repetitive processes used in the supply, design, manufacturing and erection of pre-configured houses. Industrialized house-building contractors are dependent on many small suppliers and subcontractors in their supply chain. These small suppliers, with limited resources and capabilities, need to be able to d...

This research proposes a component-oriented framework integrating design and production, which enables customer and designer together to customize housing design and avoid ad-hoc design in order to industrialize and standardize housing production. The component-oriented framework facilitates the reuse of components, quickly configures and assesses...

Supply Chain Management (SCM) is an important part of the production process in systems building. The loosely-coupled construction supply chains created by the involvement of many interdependent sub-contractors and suppliers destabilize the production process. Purchasing strategies, used by many construction companies, for controlling the supply ch...

Research Question/Hypothesis: Can a production process design framework created by integrating Value Stream Mapping (VSM) and Discrete Event Simulation (DES) be used to assess the production system performance, as predicted by a future state design of small and medium sized enterprises (SMEs) working in industrialized construction? Purpose: To expl...

An SME is often managed in an informal way with focus on sales and production. Many SME are also financially vulnerable as they are strongly dependent on a few key customers and key products. As variation will always exist, SME should learn to deal with variation instead of try eliminating it. This paper hypothesises that structural flexibility in...

To improve, it's crucial to see! Vital characteristics of Lean are visualisation and transparency, i.e. allowing everyone to see all what occurs in production. A common tool for this purpose is Value Stream Mapping (VSM). Due to varying flows, performing a successful VSM in construction confers additional challenges. In this paper, lessons learned...

Purchasing, is an important part of the production process in industrialized house-building. Uncoordinated purchasing is one of the causes for low productivity increase within the sector. Traditional purchasing strategies, used by large construction companies, may not be applicable to small and medium-sized companies. It has been suggested that tra...

Value' is a central concept in all of the principles and methods applied in Lean Construction, but it is rather difficult to provide a precise definition of the term. The problem lies in the word value itself: its ambiguity and vagueness make theorization difficult. This paper investigates the philosophical concept of value from a Lean Construction...