05-04-2012, 04:08 PM
I know what you mean, but we would not use that term; we'd say they were replaced or revert to danger. It is not just a step, more of a complete fall!
Interestingly, as we discussed on Saturday, I'd refer to the yellow, double yellow, flashing yellow, green etc as "better aspects" but never call the red the "worst aspect"!
Interestingly, as we discussed on Saturday, I'd refer to the yellow, double yellow, flashing yellow, green etc as "better aspects" but never call the red the "worst aspect"!
(05-04-2012, 09:52 AM)Jerry1237 Wrote: From the operational point of view the above is correct. From a technical point of view, signals are designed to "step-down" usually upon a train passing through a section of railway. A driver should not see aspects step nor climb down. In the UK (mainline) that would be classed as an abnormal aspect sequence and requires a driver to stop at the next available safe place to report it.
PJW