I note that so far there have been 10 other downloads of your work but no-one has ventured a comment yet.
Basically I think it is pretty good- it's clear, it looks well spaced and thought out, the approach release conditions are clearly differentiated from the actual sequences. There are a few errors and particular places where unclear presentation could have been avoided; these are detailed in the attached file. You will note that my comments tend to start at the most advanced signal and work back against the direction of traffic to the signals in rear; this is of course the way that aspect sequence flows to bing information about the line ahead to the driver's attention- I am amazed at how many attempt to draw sequences working forwards from the approaching train (and generally getting themselves into a mess because of it!).
Even so I am sure that you'd very comfortably get a "pass" for this effort. This question paper seems far more typical of an IRSE aspect sequence exam question than 2007 that seemed far too easy (and that may be why the talk at the last Exam Review was that in future the aspect sequence diagram may be phased out- there was no hint that it would be absent from 2008 paper but I reckon that it will certainly be more substantial than last year, or even coupled with a related subject in a combined question)
regards,
PJW
Basically I think it is pretty good- it's clear, it looks well spaced and thought out, the approach release conditions are clearly differentiated from the actual sequences. There are a few errors and particular places where unclear presentation could have been avoided; these are detailed in the attached file. You will note that my comments tend to start at the most advanced signal and work back against the direction of traffic to the signals in rear; this is of course the way that aspect sequence flows to bing information about the line ahead to the driver's attention- I am amazed at how many attempt to draw sequences working forwards from the approaching train (and generally getting themselves into a mess because of it!).
Even so I am sure that you'd very comfortably get a "pass" for this effort. This question paper seems far more typical of an IRSE aspect sequence exam question than 2007 that seemed far too easy (and that may be why the talk at the last Exam Review was that in future the aspect sequence diagram may be phased out- there was no hint that it would be absent from 2008 paper but I reckon that it will certainly be more substantial than last year, or even coupled with a related subject in a combined question)
regards,
PJW
alexgoei Wrote:Hello Peter,
Appended please find my answer to the aspect sequence chart for 2006 Part B Q1.
Please can you look at it and let me have your comments
Thank you & Regards