The article describes the use of computer simulation for assessment of a rail vehicle in the GNSS signal failure situation in a railway network model. Attention is paid to a brief overview of the existing solutions in the field of rail vehicles localization on regional lines, and to the description of a multi-layer rail network
model. The article further deals with identification of rail vehicles position within a railway infrastructure model with the use of the GNSS system focusing on regional lines. The last part introduces the experiments of assessment of future position of a rail vehicle in the GNSS signal failure.
The real contribution of this job was the possibility to analyze and demonstrate scenarios correspond to the state of the process before and after the improvement through a simulation and some statistical tools like Brainstorming, Ishikawa diagram, DOE (design of experiments) and a linear programing. The Productivity was found to be increased by 350% when using tungsten carbide powder with a density of 3.5 g/cm3, already agreed with the raw material supplier plants. Likewise, a correct allocation of personnel for the sandblasting operation, obtained through an integer programming model, leads to an improved productivity.