Quick Facts:
Class 43 Track Inspection
The Class 43 Track Inspection is a railway maintenance vehicle used to assess the condition of track so that engineers can determine where to work. In real life, lasers, vertical and horizontal actuators, gyros and accelerometers measure the interaction of the vehicle passing over the track.
In game, it can only be spawned by certain admins.
In real life, the train is similar to other maintenance and measurement trains around the world, like the Doctor Yellow in Japan.