Presently dozens of various branded highspeed geometry measurement systems are employed for rail track geometry assessment. Usually each of them is mounted on a special type of vehicle. 

The SOKOL system for monitoring and assessment of track geometry is distinguished by the fact that it can be

integrated in any mobile diagnostic system irrespective of its manufacturer and dimensions, as there are carriages, railcars, etc. Such versatility, along with high precision measurements and affordable prices make it possible to use this system for rail track geometry monitoring on main lines and receiving-and-departure tracks.

This product offered by TVEMA provides potential customers with a system, which meets, to the greatest possible extent, their objectives in maintaining the rated performance of any track section belonging to their area of responsibility.

The SOKOL system of monitoring and assessment of track geometry complies perfectly with modern international

standards. Its design has brought together the best experience of worldwide manufacturers of such systems and the in-house know-how of TVEMA engineers accumulated over the last decade. 

SOKOL track geometry equipment constitutes a system of sensors mounted on three or four inspection bogies installed on the body or the frame of vehicle bogies. This design facilitates data logging at speeds up to 100 km/h. Simultaneous assessment of vertical and Horizontal positions of both rails with respect to vehicle body as well as of kinematic travel parameters results in precise determination of the track geometry. The system also logs and checks for parameters and components of the track section under inspection: coordinates of kilometre posts, artificial facilities, crossings, switches, etc. 

All acquired information is processed in real time, logged and documented for further analysis and for scheduling work in current maintenance and repair of the track. 

The data acquired during travel is transmitted to the onboard computer system. This provides the visualization

and logging of rail track geometry and its revealed deviations from maintenance standards. The computer system converts the displacements of the measuring instrumentation into electric signals, and based on their analysis, it reveals basic (rated) and additional (non-rated) geometry parameters of the track. Furthermore, additional information is acquired relating to speed and time of travel, operator’s control actions, logging switches, etc. 

Based on the basic and additional information processed, the computer system reveals deviations of rail track

geometry from maintenance standards and determines the required restrictions of travel speed. Moreover, all deviations are analysed in quantity and quality and are referenced to particular coordinates.