Abstract: The topic logistic has become more and more important in German agriculture during the last years. This is caused by a growth of enterprises and machines but also by the enormous extension of the cultivation of renewable resources for the production of energy. To manage these logistical tasks in agriculture in Germany at the moment, different transport systems
are preferred. The classical system with tractor and agricultural trailer, transport via truck like it, is typical for the commercial transport of goods and the transport with specialized vehicles which can be classified between both systems. To evaluate these transport processes it is decisive for the farmers to know the key parameters of the single systems like the average fuel consumption (energy) and the average transport speed (time) for their special logistic issue to optimize the input of resources. The aim of the examination is therefore to develop a planning tool for the farmers to evaluate the logistic systems.Within this project examinations have shown that environmental influences like driver, loading, road type, gradient, winding ness, traffic
situation, daytime and so on, have an enormous influence on the key parameters energy and time. Current simulation systems
for the estimation of the key parameters energy and time have not provided satisfying results for the agricultural sector.