What does green over green indicate in double colour light RVDS?

In the context of double colour light Rail Vehicle Detection Signals (RVDS), green over green indicates that the route ahead is clear, and the train can proceed without restrictions. This signal configuration is used to ensure that drivers can operate their trains safely and confidently, knowing they have the authority to continue their journey at the current speed without needing to slow down or stop.

While other signals provide varying levels of caution or restrictions, green over green specifically communicates to the train crew that it is safe to move forward. This clarity is essential in maintaining safe and efficient rail operations, allowing trains to run on schedule while minimizing the risk of accidents.