About 50% of all track disruptions are caused by faulty switches, with timely maintenance being needed in order to prevent these disruptions. We use a SIM wagon to measure and inspect the geometry and rail profiles of your switches under day-to-day operating conditions. A single locomotive can push or pull the SIM wagon, which means it can be shunted around quickly between the normal rail traffic. Since we also record high-quality video images during this work, you can make a visual inspection of the switch without having to put it out of service for the inspection and without your staff having to walk on the track themselves.