Colour Light Signal

Colour light signals are a crucial aspect of the railway industry, ensuring the safe and efficient movement of trains on the network. These signals play a vital role in conveying essential information to train drivers, signallers, and other railway personnel. Understanding the meaning and significance of different colour light signals is essential for maintaining the safety and integrity of the railway system.

Red Signal:
A red light signal is perhaps the most critical signal on the railway network. It indicates that the train must stop immediately and not proceed any further. Ignoring a red signal can have catastrophic consequences, leading to accidents and endangering the lives of passengers and railway staff. The red signal is a clear indication of danger ahead, and all train operators must adhere to this signal without exception.

Yellow Signal:
A yellow or amber signal is a cautionary signal that informs train drivers to slow down and be prepared to stop at the next signal. This signal is often used to regulate train speed and ensure safe braking distances, especially in areas where there may be potential hazards or congestion on the tracks. Train operators must approach a yellow signal with caution and be ready to take appropriate action as necessary.

Green Signal:
The green signal is a clear indication to train drivers that the track ahead is clear, and they have permission to proceed at normal speed. This signal signifies safety and allows trains to continue their journey without any obstructions. However, it is crucial for train operators to remain vigilant even when faced with a green signal, as unexpected circumstances can arise at any time on the railway network.

Double Yellow Signal:
A double yellow signal is a variation of the cautionary signal, indicating that the train must be prepared to stop at the next signal. This signal is often used in conjunction with other signals to convey specific instructions to train drivers, ensuring smooth and safe operations on the railway network. Train operators must be aware of the significance of double yellow signals and be ready to respond accordingly.

Flashing Yellow Signal:
A flashing yellow signal is a unique signal that signifies temporary conditions or changes in the normal signalling system. Train drivers must exercise caution when encountering a flashing yellow signal and be prepared for unexpected situations on the tracks. This signal alerts train operators to proceed with care and be ready to adapt to changing circumstances as necessary.