1. Optimal Corridor Analysis (Total Accumulated Surface)
(62,38) =
(Transmission line)
Start
Total Accumulation Surface
—sum of Start and End surfaces
…the example location is units along it optimal path back to the Start. Similarly, it is units to the End. This means the location lies on an optimal path that is a total of units long which is the lowest total value therefore on the Optimal Path (valley bottom)
(62,38) = 95.89
End
(substation)
(62,38) = =
Total Accumulation Surface
(Berry)

2. Optimal Corridor Analysis (0 Filled)
Total Accumulation Surface
—sum of Start and End surfaces
Optimal Path —valley bottom
(Berry)

3. Optimal Corridor Analysis (195-400 Filled)
…all best paths “forced” through all project locations– no siting discrimination
Flooding the Surface
—includes increasing less optimal routes
(Nth Best Paths)
(Berry)

4. Optimal Corridor Analysis (195-375 Filled)
…nearly all best paths
Flooding the Surface
—includes increasing less optimal routes
(Nth Best Paths)
(Berry)

5. Optimal Corridor Analysis (195-350 Filled)
…a few more extremely bad paths eliminated
Flooding the Surface
—includes increasing less optimal routes
(Nth Best Paths)
(Berry)

6. Optimal Corridor Analysis (195-325 Filled)
…more extremely bad paths eliminated
Flooding the Surface
—includes increasing less optimal routes
(Nth Best Paths)
(Berry)

7. Optimal Corridor Analysis (195-300 Filled)
…more extremely bad paths eliminated
Flooding the Surface
—includes increasing less optimal routes
(Nth Best Paths)
(Berry)

8. Optimal Corridor Analysis (195-275 Filled)
…more extremely bad paths eliminated
Flooding the Surface
—includes increasing less optimal routes
(Nth Best Paths)
(Berry)

9. Optimal Corridor Analysis (195-250 Filled) …more bad paths eliminated
Flooding the Surface
—includes increasing less optimal routes
(Nth Best Paths)
(Berry)

10. Optimal Corridor Analysis (195-225 Filled) …more bad paths eliminated
– note the “mountain” of unfavorable conditions between the Start and End being eliminated
Flooding the Surface
—includes increasing less optimal routes
(Nth Best Paths)
(Berry)

11. Optimal Corridor Analysis (195-220 Filled)
…getting down to the “valley” identifying the set of acceptable paths
Flooding the Surface
—includes increasing less optimal routes
(Nth Best Paths)
(Berry)

12. Optimal Corridor Analysis (195-215 Filled)
…a better set of Nth Optimal Paths
Flooding the Surface
—includes increasing less optimal routes
(Nth Best Paths)
(Berry)

13. Optimal Corridor Analysis (195-210 Filled)
…an even more discriminating set of Nth Optimal Paths
Flooding the Surface
—includes increasing less optimal routes
(Nth Best Paths)
(Berry)

14. Optimal Corridor Analysis (195-205 Filled)
…a very workable set of Nth Optimal Paths as the “pinch points” (narrow gaps) and the broad plains
of similar opportunity are well defined
… = 10 / 195= .05= top 5% of all best path rankings
Flooding the Surface
—includes increasing less optimal routes
(Nth Best Paths)
(Berry)

15. Optimal Corridor Analysis (195-200 Filled)
…beginning to loose some suitable paths for consideration (top 2.5%)
Flooding the Surface
—includes increasing less optimal routes
(Nth Best Paths)
(Berry)

16. Optimal Corridor Analysis (195-199 Filled)
…even less suitable paths for consideration
Flooding the Surface
—includes increasing less optimal routes
(Nth Best Paths)
(Berry)

17. Optimal Corridor Analysis (195-198 Filled)
…hardly any suitable paths for consideration
Flooding the Surface
—includes increasing less optimal routes
(Nth Best Paths)
(Berry)

18. Optimal Corridor Analysis (195-197 Filled)
…even less suitable paths for consideration
— no “wiggle-room” for applying additional considerations and human judgment
Flooding the Surface
—includes increasing less optimal routes
(Nth Best Paths)
(Berry)

19. Optimal Corridor Analysis (195-196 Filled)
…too little “decision space” as the Optimal Corridor is effectively the Optimal Path and assumes that the criteria, calibration and weighting of the model are all inclusive and perfect
Flooding the Surface
—includes increasing less optimal routes
(Nth Best Paths)
(Berry)

20. Optimal Corridor Analysis (0 Filled)
Total Accumulation Surface
—sum of Start and End surfaces
Optimal Path
(Berry)