Mathematical model for multistage production planning in forest industry complex

The article presents mathematical model of the timber logging process planning and transportation, as well as distribution of technological operations among enterprises within one forest industry holding. The model incorporates logging enterprises and bases of the holding, its processing enterprises and product customers. The target function of the model is to assess warehouse storage and transportation expenses. A distinctive feature of the model is its ability to account for discrete nature of production processes, for time delays in transportation and production processes. The model is used to develop the software system “Wood processing” for optimal planning of end-to-end wood utilization processes. The model can be used for planning new enterprises and renovation of existing ones by modeling various options of the wood logging structure; allocation of enterprises and distribution of technological operations among them.