What does a flashing yellow railroad signal mean?
When the top yellow light is flashing it upgrades the signal from an Approach indication to an Approach Medium indication. In the continuing pursuit for the elimination of unneeded signal heads some railroads eliminated the center head if there was no Limited or Medium speed route at a location.
When did British Rail Go Blue?
1964
There is also a British Standard paint colour BS381C 114 called Rail Blue which was introduced in 1964.
What do the lights above train tracks mean?
Red means stop; green means proceed, and yellow means caution or approach, usually indicating that the next signal is red. For other aspects, the general principle is that green on top means main route or normal speed, and red over green or yellow indicates diverging route or medium speed.
What does a double yellow signal mean?
A double yellow indication means that the next two sections are clear but there is a train in the one beyond that. A green indicates that the next three sections are clear.
Why do British trains have yellow fronts?
In Britain, historically train fronts were required to have a yellow panel in order to make them more visible, a move which came in the 1950s when newer diesel and electric trains were found to be far quieter than steam.
What is the British Rail logo called?
the National Rail Double Arrow
The British Rail Double Arrow, now officially known as the National Rail Double Arrow, is a logo that was created for British Rail (BR), the then state-owned operator of Britain’s railway network, in 1965. It is now used as part of the National Rail brand used for Britain’s passenger rail services.
What does a yellow signal mean?
YELLOW—A yellow signal light warns you that the red signal is about to appear. When you see the yellow light, you should stop, if you can do so safely. If you can’t stop, look out for vehicles that may enter the intersection when the light changes.
What comes after double yellow signal?
A flashing double yellow (only used in 4-aspect signalling) means that the next signal is showing flashing single yellow. A flashing single yellow means that the next signal at the junction is showing (steady) single yellow with an indication for a diverging route, and the signal beyond the junction is at danger (red).
When do trains no longer have yellow front ends?
UK: A new Railway Group Standard covering audibility and visibility came into force on March 5, removing the requirement for trains on the national network to have yellow front ends.
Why do trains have locomotives at the rear end?
If the train carries more load, a second locomotive is attached. But does it really matter if it is attached to front or rear part? Yes, it does! Such a system where a second or other multiple prime movers are coupled at the rear end and/or distributed along the whole train is called distributed power systems.
Do you have to paint the front of a shunting locomotive yellow?
On-track plant still has to be yellow, and forward-facing surfaces on shunting locomotives and snowploughs must still be painted yellow with black diagonal stripes where it is reasonable to do so.
What are the features of a British train?
Apart from preserved carriages no British trains still feature the traditional compartment (with side corridor walkway), passenger controlled lighting and heating controls, large picture windows plus (in first class) 3 aside seating, fold-up armrests and individual reading lamps.