Extend Gorakhpur City Halt Bob Major

EP4 Triple Mode Constraints

EP4 Triple Mode Derivation

  0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
1. Gorakhpur City Halt Bob Major 12 3456 14 56 123678 1234 58 1256 78
2. Extract places made by the hunt bell 1 - - - - - - - 8
3. Extract places above the hunt bell 2 3456 4 56 678 - 8 - -
4. Extract places below the hunt bell - - 1 - 123 1234 5 1256 7
Expand places above the hunt bell I H G F E D C B A
5. Reverse and invert places from [3] - - 1 - 123 34 5 3456 7
6. Separate into two overlapping strips - - 1 - 123 34 5
7. Using the start change and overlap - 1 - 123 34 5 3456 7
8. Expand places above mode in [7] to next stage - 1 - 156 67 8 - 1 - 189 90 E 90ET A
9. Connect the static [6] and expanded [8] strip - - 1 - 123 34 5 - 1 - 156 67 8 - 1 - 189 90 E 90ET A
10. Reverse and invert places in [9] back again 2 3456 4 56 67B - B - 7 89 90B - B - 0 ET TAB - B - -
Expand places below the hunt bell A B C D E F G H I
11. Below places from [4] - - 1 - 123 1234 5 1256 7
12. Separate into two overlapping strips - - 1 - 123 1234 5 1256
13. Using the start change and overlap 123 1234 5 1256 7
14. Expand places above mode in [13] to next stage 123 1234 5 1258 123 1234 5 1250 123 1234 5 125T A
15. Connect the static [12] and the expanded [14] strip - - 1 - 123 1234 5 1256 123 1234 5 1258 123 1234 5 1250 123 1234 5 125T A
Expand places of the hunt bell A B C D E F G H I
16. Hunt bell places from [2] 1 - - - - - - - 8
17. Separate into two overlapping strips 1 - -
18. Using the start change and overlap - - - - - - - 8
19. Expand places above mode in [18] to next stage - - - - - - - - - - - - - - - - - B
20. Connect the static [17] and the expanded [19] strip 1 - - - - - - - - - - - - - - - - - - - B
Recombine above, below and hunt bell places A B C D E F G H I I I J K L L L L L L L M
21. Above places from [10] 2 3456 4 56 67B - B - 7 89 90B - B - 0 ET TAB - B - -
22. Below places from [15] - - 1 - 123 1234 5 1256 123 1234 5 1258 123 1234 5 1250 123 1234 5 125T A
23. Hunt bell places from [20] 1 - - - - - - - 4B 5B 6E - - - - - - - - - B
24. [Unnamed] Fourteen 12 3456 14 56 12367B 1234 5B 1256 12347B 1234589B 5690EB 1258 123B 1234 50 1250ET 123TAB 1234 5B 125T AB

Extension and contraction candidates using extension process EP4-6/1:6:1/4:4:5/1:2:1  

13624785 Gorakhpur City Halt Bob Major 3456.14.56.123678.1234.58.1256.78,12
B3T2E5078A4619 [Unnamed] Fourteen 3456.14.56.12367B.1234.5B.1256.12347B.1234589B.5690EB.1258.123B.1234.50.1250ET.123TAB.1234.5B.125T.AB,12
Major Fourteen
Gorakhpur City Halt Bob Major [Unnamed] Fourteen