To provide a base for optimizing walking time, we devise a model that finds a balance between closely depicting the reality and enabling a fast combinatorial optimization of all variables. Moreover, we aim for a model that catches the problem core, such that it enables the derivation of further models at later points in time. In this chapter, we first describe our devised model, give an overview on literature about the practical problem in Section 2.2, and discuss our model assumptions in Section 2.3. With these, we show how to calculate walking time in several walking strategies along the assembly line in Section 2.4.
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