28-01-2012, 06:51 PM (This post was last modified: 28-01-2012, 06:52 PM by pieman31.)
An interesting read, particularly as it made me think on my answers to the Mod 1 exam last October.... For Q3 I seem to remember rattling off a load of info regarding Tempory Block Working, a legacy of my time in Operations I suspect. I'll stand by my answer in saying that TBW could be used to pass trains through the affected section (not sure about it being quick these days) but I'm not sure I captured the risks associated with this method of working effectively. And, given that 12 marks were set aside for risk identification, it could well explain a fundamental reason for me failing this module.
For me then, it seems that I need to concentrate on hazard identification in whole system terms. In this particular instance, I understood the problem (power failure) and knew an affective solution (TBW), I just didn't recognise why TBW is SAFER than say, talking past each defective signal etc. and what risks are associated with the situation before I arrived and more importantly why I arrived at TBW.
I think I also answered Questions 5 and 8, but don't recall much about what I wrote..... or maybe I don't want too!!
(28-01-2012, 06:51 PM)pieman31 Wrote: An interesting read, particularly as it made me think on my answers to the Mod 1 exam last October.... For Q3 I seem to remember rattling off a load of info regarding Tempory Block Working, a legacy of my time in Operations I suspect. I'll stand by my answer in saying that TBW could be used to pass trains through the affected section (not sure about it being quick these days) but I'm not sure I captured the risks associated with this method of working effectively. And, given that 12 marks were set aside for risk identification, it could well explain a fundamental reason for me failing this module.
For me then, it seems that I need to concentrate on hazard identification in whole system terms. In this particular instance, I understood the problem (power failure) and knew an affective solution (TBW), I just didn't recognise why TBW is SAFER than say, talking past each defective signal etc. and what risks are associated with the situation before I arrived and more importantly why I arrived at TBW.
I think I also answered Questions 5 and 8, but don't recall much about what I wrote..... or maybe I don't want too!!