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1. Mod 1, chapter 1
#1
Slightly updated version- original replaced. When slightly rearranging pagination I found that I had erroneously given two pages the same number and had jumbled the sequence of some text so have corrected; however actuall content vitually identical.

I placed this here for 2 reasons:
1. To make accessible some idea from SAFEWARE that people may have difficulty accessing otherwise

2. To demonstrate the idea that when reading an item of reference material, a student should not just purely read, but do something to focus attention onto what they discerne as key messages. This can be by notes in margin, underlining, highlighting etc if you own the original book. Alternatively make own list of bullet points, take some salient quotes etc. Obviously the scale of what you should "capture" is determined by what is new to you or challenges your pre-held view; generally waste of time summarising that which is already part of your understanding and experience. In this case of course, I did this to summarise for others, rather than myself so have hopefully given a reasonable overview of content.

The reasons why a student should do this when studying are:
a) makes the person really READ and concentrate to determine what needs to be captured by the filter; otherwise it is alltoo easy to skim, turn the pages with mind only half on the task
b) the act of doing something helps incorporate into memory
c) the end result can be filedd to be reviewed in the month before the exam and thse prompts should cause more of the content to come flooding back; have probably reduced content to between 5-10 percent of the original which makes it quick for skim reading just what has already been selected to be the really important stuff.

Hence hope this is useful not only for the content itself, but to give an example of the sort of thing that a student should be doing dutring their initial stages of exam preparation- i.e. absorbing relevant content.

(06-01-2013, 01:37 PM)PJW Wrote: Attached is presentation relevant to this topic.
PJW
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#2
A member of the group has made me aware of CCTV footage (at a station from different angles) of an accident occuring that demonstrates accident sequence:

bus on crossing
hit by train 1 which then derails and deflected towards other track
head on collision with train in opposite platform

http://www.telegraph.co.uk/news/worldnew...crash.html

One thing that is noticeable is how quickly (but not sure how much the video has been edited) it appears that passengers on the 2nd train are climbing out of the windows in what looks like a pretty efficient executed evacuation.

Another rather improbable "accident" (but in this case it seems some deliberate action, although almost certainly with unintended consequences) was involved:
http://rt.com/news/swedish-cleaner-steals-train-047/
PJW
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#3
(10-01-2013, 06:45 AM)PJW Wrote: Another rather improbable "accident" (but in this case it seems some deliberate action, although almost certainly with unintended consequences) was involved:
http://rt.com/news/swedish-cleaner-steals-train-047/

http://www.bbc.co.uk/news/world-europe-21025365
I've noticed the news today Re: A Cleaner stole a train and crashed at a nearby house. (See link for the BBC News above). I wonder how a cleaner lady (in her 20s) managed to steal a train from a depot and took it for a joy ride for a mile before coming off the track and hit a house.
There are plenty of systemtic failures to allow this to happen. For a start
(1)The train system should not be able to operate by others except the Driver(s) or a qualify person.
(2) The train should have been tripped (if the ATP system is in use), and not be allowed to drive off from a Depot.
(3) The control system at the depot should have picked up this unauthorised move and stop it there. (perhaps with a trap point?)
(4) Similar to (2) IT should have got tripped as soon as it entered the main line section. The train must have travelled fast enough to leave the track section and hit a house!.
(Please note, the link for the Video from the BBC news may not work outside UK).
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#4
Was the Argentinian accident caused by some kind of level crossing failure?
Looks like the barrier was stuck halfway down.

Anyway must get on with my homework....
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