The paper furnishes a review of different designs of diesel motor trains, and lists their manufacturers and users. The author discusses the basic properties of trains designed for suburban traffic and indicates the possible trends of future development. Individual practical propositions are committed to analysis regarding drive, transmission and operation of diesel motor trains. Furthermore, the criteria for the option of the diesel motor train in suburban traffic are reviewed.

In order to make possible making phone calls from public places (squares, streets, etc.) as well as shops or restaurants, public phones have been provided that automatically collect the charges. The ways of payment for use of phone have evolved over the years. The paper discusses the ways of collection of charges and provides a review of their features, advantages and disadvantages, and outlooks for the future.

The basic aspect that is the subject of interest in this paper refers to the air traffic management. If it is true that the structure of air transport makes a subsystem of air traffic also originating from the general theory of complex systems and the theory of modem management (structuring), then it appears from the theoretical and practical viewpoint possible and correct to decompose this subsystem in to a number of further subsystems of lower hierarchical level. Thus when dealing with the issue of air traffic management it is possible to discuss: the structure of air traffic authorities, the structure of air traffic as a system, the structure of transport service, the structure of passenger and freight services, internal structure of airlines, of airports, and of ATC, the structure of individual business functions and the structure of transport process.

A rational investment policy in market economy is absolutely rooted in scientifically established and accepted methodology and elaboration procedure. Based upon this kind of assessment it shall furnish highest guarantees for rationalization of loan funds pumped into the investment project. The paper deals with the effectiveness of the procedure of elaboration of the feasibility study because unless provided it would make impossible the implementation of a rational investment policy, within the framework of the market system of doing business. A series of methodological procedures being the basic elements of investment activities have been accentuated. In this, major import is assigned to a prospective investor given a wider scope of responsibilities considering the funds spent as an independent factor in the process of doing business and repayment of the negotiated loan.

This paper deals with the architecture of space information systems. These systems make part of the information science discipline: the space information science, dealing with compilation, processing, storing to memory and dissemination of space-related information within the scope of successful and effective making use of land, being itself a major national resource. Detailed review covers all contents of information system which in the majority of progressive nations make part of a separate scientific discipline of space information science.