What color should slowdown lanterns be?

Slowdown lanterns are utilized as visual signals for train operators to indicate to approaching trains or personnel that a reduction in speed is necessary. The correct color for slowdown lanterns is yellow, as this color universally conveys caution and the need to prepare for a change in operational conditions, such as slowing down.

Yellow lanterns serve as a clear warning that draws attention without implying a stop, which would typically be denoted by red. This designation aligns with safety standards and protocols aimed at preventing accidents while ensuring efficient train operations. Trains are trained to recognize yellow as a command to slow down, thereby facilitating smoother transitions and maintaining safety on the tracks.