Referring to
"3.You didn't declare your standards- seems a bit of a mixture of vintages but I suppose Railtrack / Network Rail early 1990s on average. Certainly I realise that you chose not to give shunts overlaps (I think good decision) nor have overun detection."
So could I use NR standard? The difficulty is I have never seen these standard, how could I know which one I am using.
Referring to 4.Opposing route locking:
There are no control box of sig307, so how could I know how many routes it have? I supposed it has 2 routes, one is 307A(S), from 307 to Down Main, another is 307B(S), from 307 to Up Main. And I think 307B(S) is opposing to 114C(M). An I wrong again? I admitted that I could not understand your explanation very well.....
Referring to 4b) I did not understand your meaning...could you kindly please explain it again?
Referring to 9
"133A(S) would be "when cleared" as the route is approach released; don't condfuse shunt class routes from main signals with shunt signals- there are some subtle differences."
why? I have checked Braitish Railway Control Table, and saw it says"For a subsidiary siganl, the appraoch locking controls and time are the same as for its assocoated main signal". Is it what you means?
It is truely that I can not get your points sometimes....for Eng is my mother tongue. I will try to communicate with you whenever I have difficulties. And thank you for your detailed explanation again and again......... I usually felt moved when I saw long pages of your detailed explanation. Thanks again.
[/quote]
"3.You didn't declare your standards- seems a bit of a mixture of vintages but I suppose Railtrack / Network Rail early 1990s on average. Certainly I realise that you chose not to give shunts overlaps (I think good decision) nor have overun detection."
So could I use NR standard? The difficulty is I have never seen these standard, how could I know which one I am using.
Referring to 4.Opposing route locking:
There are no control box of sig307, so how could I know how many routes it have? I supposed it has 2 routes, one is 307A(S), from 307 to Down Main, another is 307B(S), from 307 to Up Main. And I think 307B(S) is opposing to 114C(M). An I wrong again? I admitted that I could not understand your explanation very well.....
Referring to 4b) I did not understand your meaning...could you kindly please explain it again?
Referring to 9
"133A(S) would be "when cleared" as the route is approach released; don't condfuse shunt class routes from main signals with shunt signals- there are some subtle differences."
why? I have checked Braitish Railway Control Table, and saw it says"For a subsidiary siganl, the appraoch locking controls and time are the same as for its assocoated main signal". Is it what you means?
It is truely that I can not get your points sometimes....for Eng is my mother tongue. I will try to communicate with you whenever I have difficulties. And thank you for your detailed explanation again and again......... I usually felt moved when I saw long pages of your detailed explanation. Thanks again.
[/quote]