Trends in the development of computer-based interlocking systems are considered. The main emphasis when creating them is on achieving safety indicators no worse than those of relay analogues. The subsequent steps of improving the systems determined the directions of expansion of information support and automation of management. The main advantage of computer systems was the software implementation of a number of traditional functions that required the installation of additional relay equipment. The use of digital joints between the components of the system makes it possible to design a distributed structure of the computer-based interlocking systems on the basis of standard equipment, ensuring the rational use of computing power. Modern intelligent technologies as part of the tasks solved in the computer-based interlocking systems provide not only the choice of the best technological solutions for the organization of the station, but also allow you to exclude incorrect actions of personnel, free them from performing routine operations.