On what types of tracks can Form B be issued?

Form B is a track authority used in railroad operations that allows for protection during maintenance or work activities. It can be issued on both main tracks and controlled sidings because these areas require specific permissions to ensure safety while work is being conducted.

Main tracks are critical for the movement of trains, and issuing Form B here ensures that no trains will enter the work zone while maintenance is taking place. Similarly, controlled sidings are areas where trains may be able to move off the main track and potentially place workers at risk. By allowing Form B to be issued on controlled sidings, the dispatcher can also ensure that these areas are clear of train traffic, protecting the maintenance crew.

This dual capability of issuing Form B helps to maintain safety and operational integrity by clearly defining work zones on both the main tracks and controlled sidings, ensuring that all necessary precautions are taken to prevent any accidents during work activities.