05-10-2014, 05:23 PM
Hi all
First of all, I wish to thanks for the excellent forum and a lot of people helpful here especially PJW, Peter, Reuben, Dorothy and so on.
I took the exam Mod 2 and 3 this year.
Mod 2,
-the stopping headway calculation is tough for me. I could not have sufficient time to think and provide the answer. I thought that after I finish the layout, I will have some time left but it did not. So just did only part a and b not c
-brake rate is changed from 0.5 m/s/s to 0.7 m/s/s and train length becomes 230 m
-i think the timetable headway is about 5 min as I found out there are 12 trains per hour (taking worst case) and I divided 5 by 2 because freight trains and stopping trains dominate the headway so let's say 2.5 min. This will be ok with 3-aspect signalling with 40% contingency if i did not miss anything.
-the layout asked us to draw the double slip points. I didn't do it well.
-i designed 4-aspect signalling at platform and tried to manage 3 aspect in the rest of the layout and failed to give 2 aspect signalling at the terminal staion.
-I took too much time to find the consistency distance for signal spacing and finally did not finish the added on signal indicators. Just did some parts.
-I had 5 min to provide the route box before time's up.
I am not sure I can pass with high marks as I wish. However, if there is no big shock, I should pass it.
Mod 3
-I did the control table question with confidence. I think I am good with that.
-Aspect sequence was my attempt with 3-aspect signalling. All distance for signal separation can be covered with BD.
-last question I chose is about a route proving before the signal is clear(question 6) as I remember. It is 2-page long for the answer but not sure I can make the examiner happy though I have read the question carefully.
If everything is what I expect, i should be ok for mod3 but not sure again.
Now it would be great if I know the result before next year.
Do you have any idea? When unofficial result can be given ?
Thanks and I will take a break and start it again soon maybe next month
)
Best regards Arnut
First of all, I wish to thanks for the excellent forum and a lot of people helpful here especially PJW, Peter, Reuben, Dorothy and so on.
I took the exam Mod 2 and 3 this year.
Mod 2,
-the stopping headway calculation is tough for me. I could not have sufficient time to think and provide the answer. I thought that after I finish the layout, I will have some time left but it did not. So just did only part a and b not c
-brake rate is changed from 0.5 m/s/s to 0.7 m/s/s and train length becomes 230 m
-i think the timetable headway is about 5 min as I found out there are 12 trains per hour (taking worst case) and I divided 5 by 2 because freight trains and stopping trains dominate the headway so let's say 2.5 min. This will be ok with 3-aspect signalling with 40% contingency if i did not miss anything.
-the layout asked us to draw the double slip points. I didn't do it well.
-i designed 4-aspect signalling at platform and tried to manage 3 aspect in the rest of the layout and failed to give 2 aspect signalling at the terminal staion.
-I took too much time to find the consistency distance for signal spacing and finally did not finish the added on signal indicators. Just did some parts.
-I had 5 min to provide the route box before time's up.
I am not sure I can pass with high marks as I wish. However, if there is no big shock, I should pass it.
Mod 3
-I did the control table question with confidence. I think I am good with that.
-Aspect sequence was my attempt with 3-aspect signalling. All distance for signal separation can be covered with BD.
-last question I chose is about a route proving before the signal is clear(question 6) as I remember. It is 2-page long for the answer but not sure I can make the examiner happy though I have read the question carefully.
If everything is what I expect, i should be ok for mod3 but not sure again.
Now it would be great if I know the result before next year.
Do you have any idea? When unofficial result can be given ?
Thanks and I will take a break and start it again soon maybe next month
)Best regards Arnut