The study of the behavior of different track panel structures on the lines of the Croatian Railways has been completed in regular conditions of utilization. The subject research has been conducted by measurement of strain in straight and curved track sections.

In order to have fluctuations in traffic reduced to the minimum and on to a predictable scale, the paper deals with the measuring and forecasting of passenger flows at bus stations. Particular attention has been fixed on traffic forecasting by the method of correlative analysis. The examination of respective indices, coefficient of correlation, and value trend have all comifired the adequacy of the Gompertz trend, being of particular importance for the projections of fixture demand for traffic services.

The paper deals with the study of problems appearing in the process of operation of the Diesel engine with different fuel mixtures. The results of the experiment run for the Diesel engine by application of D-method show the interdependent aspect of the working cycle factors and the ratio of gasoline in Diesel fuel.

The paper deals with the methodology for establishing the units of mechanized fleet for operation and handling in container terminals. Selection of the type and number of manipulation equipment is completed based upon the computation (estimate) taking account of the time needed for the completion of individual operation, and setting the time quota for loading and unloading. Also included in the computation is the capacity of reloading equipment from which we are able to work out the utilization-related i.e. actual capacity. By review of dimensions and capacities of container cranes and straddle carriers the methodology for selection of the needed fleet is completed.

By introducing and structuring the nation's independent military forces the Republic of Croatia has adopted the model of training of military pilots in the civil system of training at the University of Zagreb, following different educational models. Military pilot training models adopted in Air Forces of Western nations, are of a layered concept, with different levels of engagement and discharge of pilots, however the training structure is conditioned by accurately defined requirements i.e. especially in practical training being adopted in the model of training of the Croatian Air Force pilots. Generally speaking, practical training (qualifying for the completion of missions and licensing requirements) refers to basic, advanced and special training upon completion of selection of prospective candidates. Basic pilot training means the actual acceptance of candidates into the profession. Therefore its role is of paramount importance in training. It consists of several stages or levels in the process of competent evaluation of flyer characteristics of future pilots. At the University of Zagreb and Military Academies in the Republic of Croatia there are available scientific potentials (both teaching and material) ensuring high-quality and high level of efficiency of militar) ·pilot training.

The study of combined modern transport technologies in the Danube-Adriatic region refers us to the conclusion of major significance of transport corridors and freight flows and relative lagging behind of surface transport as a whole. Particular reference has been drawn to the low level of development of transversal traffic routes crossing the territory of the Republic of Croatia on the route from the Danube Region to the Adriatic Region. Without constitution of modern railway lines and highways to be integrated into the European TER and TEM systems it shall not be possible to complete the traffic related evaluation or promote the Adriatic Orientation policy of the Republic of Croatia. The model of linkage and modernization of surface and sea transport involves the modernization of the overall technological and traffic infrastructure, and introduction of modern information system(s) to enable linkage of all participants in traffic on the Danube-Adriatic corridor.