This project provides for setting up special automatic devices at the key railway junction stations of Latvia, where intensive operations of forming and breaking up of trains take place, i.e. in Riga, Daugavpils, Rezekne, Jelgava, Ventspils, Krustpils, and Liepaja, in order to read wagon numbers from a passing (travelling slower) rolling stock. The system is expected to read these numbers, enter them in a common data system, prepare an electronic train consignor list, and, following a specialist control and electronic verification, the prepared document is sent to the next train processing station. The introduction of the system in practice, as well as partial computerisation of railroad documentation would not only speed up the wagon number recording process, but would also facilitate and accelerate the wagon sorting and control processes, and would expedite cargo flows in the biggest railroad transit corridor of Latvia, i.e. Rezekne – Krustpils – Jelgava – Ventspils, as well as in other major cargo directions.