Abstract:

Based on the analysis of 5 year statistics data on failures of automation and telemechanics devices on Georgia Railway is plotted the diagram and are determined the qualtitive indicators of reliability of device. With analysis of reliability of insulating joint track circuits are stated the description of various modes of its operation and critical values of primary parameters of track circuit for corresponfing modes. Are considered the audio frequency track circuits, principles of their construction, their advantages and shortcomings. Is atated the structural layout of axles count system for simples span and as final table is stated the comparison of traditional track circuits and axles count systems. Based on the comparison are make according conclusions

Keywords: Railway automation and telemechanics; Track circuit; Axles count systems