Logistic analysis of wood chips procurement chain from forest to power industry plants - method

We present an analysis of the wood harvesting residues procurement process. In this case chips are supplied to large power plants. Analysis is based on data collected in north-eastern Poland. Typical logistic division of the system objects categories are applied - movable or active objects (vehicles skidding, trucks, choppers, etc.) and stationary or passive ones (storage yards, warehouses). To determine the time of execution of the operations by the active objects (machines), because of the stochastic character of the process and its environment, we apply description of uncertain dynamic systems derived from dynamic programming. The necessary data were obtained during field research of wood harvesting and transport process