You're right. A 1.6M increase in the transparent sound barrier will create a shadow.Excuse me? What's with the hostility.
I report facts.
A 1.6M increase in track elevation is a 1.6M boost in the height of the sound barrier.
The shadow impact IS statistically significant, depending on the time of year, and the object. A 1.6M increase is (potentially) over 30M (90ft of additional shadow).(well over, but I'm trying to omit brief points in time and look at a peak period, averaged)
Feel free to do the calculation yourself:
Online calculator. Gives a vertical object shadow length for given coordinates and time. Also calculates shadow growth during whole day.planetcalc.com
My argument is neither for, nor against.
It is to consider the facts; and to consider whether a proponent is being forthcoming about same.
Additionally, the shadow is not disruptive, the construction involved in raising a large railway berm by that height, when it is part of a busy rail corridor would be. I also reference a well known local expert in transit, Steve Munro in saying as much.
My record here speaks for itself.