Planering & produktionsstyrning
Lean filosofin vid produktion av asfalt
Lean is a production philosophy which is about increased resource use while meeting customer requirements. The foundation of lean comes from Toyota and their production philosophy The Toyota Way. Professor Jeffrey k. Liker has worked with Toyota's production philosophy and Lean for a long time and has created a 4 P model and 14 principles that characterize the Toyota production system (TPS), which many sources refer to.The aim of my work is to study the working procedure of asphalt projects from sales to the laid asphalt with a focus on planning and production management. The goal is to examine how the lean philosophy can be applied in planning and production to simplify the flow of asphalt projects based on Likers model and principles. My work shows that the asphalt industry has a lot to gain by implementing lean philosophy in their business because it has the characteristics of leans aims. The distinguishing factors are sector specific, while lean is production specific. Lean fits the asphalt business because it has high volume and low variation, which lean philosophy focuses on. Main factors that complicate are the product characteristics of asphalt, the capacity of manufacturing, the weather and customer demands.