Since the month of August 1992 an agreement has been available for signing based upon which the governments of the European countries participating in TER Project accept the obligation of instituting a fund to secure the sources for financing the completion of one of the most significant multi- national projects in Eastern Europe. For Croatia this assumes particular meaning because the project anticipates including our railway line from Botovo via Zagreb and Rijeka to Trieste as making part of a future main railway link from Kiev via Budapest, Zagreb, Rijeka, Trieste, Venice all the way to Barcelona.

The first railway line was introduced in Zagreb in 1862, while the Central Station was built in 1892. At the time of its construction the station was located to the south of the town outside the built-up urban area. For reasons of accelerated development of the urban area, undoubtedly supported by the railways as well, further continuing urban spread to the south and railway lines soon reached the point of confrontation, in particular the Central Station buildings and facilities for their location, size and level. The paper deals with different designs of the Central Station as anticipated in the urban area development plans over the period of past hundred years and the actual situation reported in practice.

An almost explosive growth of air transport and concern for environmental protection set a requirement for the enactment of regulations for the protection of atmosphere against aircraft engine exhaust emissions. Some essential features of subject provisions have been outlined as referring to the Promet, vol. 4, 1992, br. 6, 195-199 exhaust gases from jet aircraft engines. The expected effects of subject provisions have been discussed as well as the possible paths of development on designing environmentally more friendly jet engines.

The automatic data processing makes an absolute requirement of modem times, while the business organizations and institutions which fail to recognize this need and organize make arrangements for such data processing inevitably lag beh.znd the times and meet with difficulties in operations. This has fully b.een recognized in the ''Autoprijevoz' Division of the Croatian Posts in Split. The paper initially deals with the organization of transport and then discusses the need for the introduction of the automatic data processing while the authors subsequently review the system requirements as originating from this new method of data processing.