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    Thread: CBTC braking curve calculations
Post: RE: CBTC braking curve calculations

Thanks Peter, found your response useful. This seemed like quite a good primer on braking curve implementation on ETCS, might be of interest: https://www.era.europa.eu/sites/default/files/activities/...
tfc82 Module 3 2 5,745 25-09-2019, 09:02 PM
    Thread: 2018 mock exam attempt
Post: RE: 2018 mock exam attempt

Not qualified to offer any detailed feedback, as I'm doing Mod 3 myself this year and it is not my field of expertise. Your answers looked pretty good to me though. As far as technique goes, It's b...
tfc82 Past Paper Attempts 2 5,389 22-09-2019, 05:10 PM
    Thread: ANyone else doing 4 modules in 2018 Exam or am I the only one glutton for punishment
Post: RE: ANyone else doing 4 modules in 2018 Exam or am...

Also thought the Mod 2 (rapid transit) layout felt very different to previous years. Felt I did it justice, but it is hard not to dwell on areas for improvement! Good luck all!
tfc82 Introduce yourself 6 10,736 08-10-2018, 10:49 AM
    Thread: ANyone else doing 4 modules in 2018 Exam or am I the only one glutton for punishment
Post: RE: ANyone else doing 4 modules in 2018 Exam or am...

hayesip Wrote: (01-10-2018, 08:27 AM) -- With just a few days to go until the 2018 exam, I thought I'd better introduce myself. I'm a railway signalling engineer based in Brisbane Australia and will ...
tfc82 Introduce yourself 6 10,736 02-10-2018, 12:36 PM
    Thread: 2017 Q5 Train Control / ATP
Post: RE: 2017 Q5 Train Control / ATP

Thanks for the tip - in retrospect  an ETCS L1/2 style system would indeed seem like the way forward for this question.
tfc82 Past Paper attempts 2 6,954 29-09-2018, 12:53 PM
    Thread: Module 1 2017 Paper Question 8 Attempt
Post: RE: Module 1 2017 Paper Question 8 Attempt

REMBrum, Looks like a good answer to me. Just a few thoughts (not sure I'm particularly qualified to comment, but there you go :) ): 1. Would suggest axle counters may be cheaper than TCs to in...
tfc82 Past Paper attempts 4 8,745 19-09-2018, 06:00 PM
    Thread: 2017 Q2 Human Error
Post: RE: 2017 Q2 Human Error

Thanks, those are some good ideas I will bank :) Wiring mods didn't spring to mind as a maintenance activity, but I guess there are probably scenarios where they are undertaken by maintainers.
tfc82 Past Paper attempts 2 6,564 19-09-2018, 05:48 PM
    Thread: 2017 Q6 Level Crossing Renewal
Post: RE: 2017 Q6 Level Crossing Renewal

Thanks REMBrum. Agreed, I should have explicitly stated pedestrian traffic (not just vehicular), and written a bit on the review of historic incidents (I did a few words in late as an afterthought). ...
tfc82 Past Paper attempts 2 5,832 19-09-2018, 05:44 PM
    Thread: 2017 Q2 Human Error
Post: 2017 Q2 Human Error

All feedback gratefully received. For some reason, suitable scenarios didn't spring easily to mind. For both of the following, describe a scenario where human error may contribute to a hazardous co...
tfc82 Past Paper attempts 2 6,564 18-09-2018, 01:37 PM
    Thread: 2017 Q6 Level Crossing Renewal
Post: 2017 Q6 Level Crossing Renewal

The question seemed to be asking about process, rather than technology. Hopefully I didn't get too sidetracked by non-safety considerations. An automatic half barrier level crossing on a light traf...
tfc82 Past Paper attempts 2 5,832 18-09-2018, 01:29 PM
    Thread: 2017 Q5 Train Control / ATP
Post: 2017 Q5 Train Control / ATP

All feedback welcome. Hopefully my suggestion of CBTC without ATO functionality wouldn't have annoyed the examiners, in retrospect may be over-engineered. A new train control system is being specif...
tfc82 Past Paper attempts 2 6,954 18-09-2018, 01:24 PM
    Thread: 2016 Question 8 - Safety Security
Post: RE: 2016 Question 8 - Safety Security

Ian/Jerry - Thanks. Good point about V&V, should have explicitly mentioned that!
tfc82 Past Paper attempts 3 8,602 16-09-2018, 06:33 PM
    Thread: 2016 Question 8 - Safety Security
Post: 2016 Question 8 - Safety Security

My first attempt at an exam question to time, thought I'd put it out there. In retrospect, spent too long defining the system and in early lifecycle stages. So later stages were rushed.  In the end...
tfc82 Past Paper attempts 3 8,602 07-09-2018, 05:22 PM
    Thread: Reading Time/Graph Paper
Post: RE: Reading Time/Graph Paper

dorothy.pipet Wrote: (28-08-2018, 11:47 AM) -- These may help, although I can't be sure they are the latest. --   Thanks Dorothy. I must admit, am surprised that the paper does not appear to be mm sq...
tfc82 General exam advice 5 12,389 29-08-2018, 10:53 PM
    Thread: Reading Time/Graph Paper
Post: RE: Reading Time/Graph Paper

Jerry1237 Wrote: (20-08-2018, 08:05 AM) -- Can answer part of it. There is 10 minutes reading time at the beginning of each module. -- Thanks Jerry, great to have that confirmed.
tfc82 General exam advice 5 12,389 20-08-2018, 03:50 PM
    Thread: Reading Time/Graph Paper
Post: Reading Time/Graph Paper

Hi all, Apologies if this is stated elsewhere (have checked the material on the IRSE site, with no success), but have a couple of questions regarding the format of the exam. I'm taking mods 1 and 2...
tfc82 General exam advice 5 12,389 17-08-2018, 12:41 PM