There are principles that are included in the basis of common information space. The most of all principles are relevance, predictability, specific, response time, institutional, security. The article consider technical aspects such as the distribution of computing power on the basis of the properties of parallel processes, systems requirements (scalability, distribution), logistics principles of information flow, the implementation of the functions of information processes. The article describes the technical, economic and legal basis of common information space. Since railway trasnport includes a number of developments, the implementation uses the principles of reengineering such as optimality, adaptability, redundancy, rationality, vertical, horizontal, intensity etc ...

Keywords: common information space, principles, clustering, parallel computing, predictability, consistency, optimization