How do you read B&O signals?
This is divided into 4 possible color-positions, Red —, Yellow /, Green | and Lunar \. If there are two signals to a stop, Green is displayed. And if the block ahead is obstructed then Red is displayed. Lunar is the same as Red, but is used for yards and non-signaled track.
What does an approach limited signal mean?
APPROACH RESTRICTING. Proceed, prepared to stop at the next signal. Trains exceeding Medium speed must begin reduction to Medium speed as soon as the locomotive passes the Approach Restricting signal. NOTE: Does not convey block or track information.
What does B&O RR stand for?
History of the Mt. The Baltimore and Ohio Railroad (B&O) was founded in 1827 and broke ground on July 4, 1828, for the construction of its headquarters and America’s first commercial railroad tracks.
What does a white shunt signal mean?
proceed at caution
Shunt signals It has three lights in a triangular shape and two white lights mean proceed at caution whereas any other indication should be taken as a stop signal or a malfunction.
What did the Tom Thumb do?
Tom Thumb was the first American-built steam locomotive used on a common-carrier railroad. Designed and built by Peter Cooper in 1830, its purpose was to showcase American steam engine potential to owners of the Baltimore and Ohio Railroad (B&O).
How many types of shunt signals are there?
(1) (a) A Shunt signal is a subsidiary signal and shall be either- (i) a white disc with a red bar across it, or (ii) a position light signal. (b) under special instructions, a Shunt signal may be a miniature semaphore arm.
What speed should you pass a yellow aspect?
70-80 mph
The next aspect will always be yellow unless it changes as more of the train’s route is clear. An unofficial advised speed past this signal is 70-80 mph.
What does a yellow train signal mean?
caution or approach
Some are common, others are unique to a specific railroad. The most constant signals and the easiest to understand are single-head block signals. Red means stop; green means proceed, and yellow means caution or approach, usually indicating that the next signal is red.