The dynamic development of railway infrastructure requires a proactive approach of surveying work and Structural Health Monitoring (SHM). A proactive approach makes it possible not only to anticipate and identify future technology needs, but also to evolve and select the most optimal solutions, relevant to infrastructure maintenance. The main objective of the work is to analyze and evaluate the staking accuracy of special multi-track constructions (SMtC) represented in this work by six single turnouts. Modern Robotic Total Stations (RTS) were used, which work with mobile devices (MD). Three models of RTS were verified: the Trimble S7, Trimble S9 HP and Geomax Zoom90. Attention was paid to the location of the RTS station in use with the polar method. It has been shown that, the highest staking accuracies are presented by the Trimble S9 HP total station, due to its high accuracy and optical plummet. The most optimal location of the RTS station for staking out turned out to be a staking stations near the central construction zone for each turnout – near the mathematical point. Such a location of the RTS station allowed for an even distribution of errors on the staked points. The accuracy parameters of RTS imply their use in SHM of railway infrastructure. The results of the implemented work have confirmed that modern RTS working with MD, provide high accuracy in surveying work.
Malach et al. (Sun,) studied this question.