I am reading a paper named "EPRI-GTC Overhead Electric Transmission Line Siting Methodology", and in this paper the author uses "the first statistical break in its histogram" to determine the corridor boundary. And there is no description about the meaning of 'statistical break' and how to calculate it in this paper.
I can't find any info about the term 'statistical break' by Google. Please help me if you know something about it.
Here are some sentences in this paper:
In each scenario, the Macro Corridor boundary is determined by the first statistical break in its histogram.
The boundaries of these corridors are chosen by the first statistical break in the histogram.