What are Dwarf Signals primarily used for?

Dwarf signals are primarily designed to control train movements at low speeds, making them particularly useful in situations where trains are operating in yards or areas with restricted visibility. These signals are typically shorter in height, which allows them to be placed closer to the ground, making them more accessible for train operators to see when they are in close proximity to the signals, such as in station areas or within maintenance zones.

Given their purpose, dwarf signals are often used to convey information regarding slow-moving trains, allowing for safe and efficient operations in confined spaces. This includes directing trains to proceed at reduced speeds, stop, or prepare for additional actions, which enhances safety during operations where full-size signals may not be visible or practical.