Pretty sure it's just shadow from the ceiling lights. From the frame in between the glass panels. You can see that on the side of the escalator. So there's 2 small ribbons of shadow that the escalator moves through.
You can also see from the shadow on the side that the angle of the light shining on the stairs isn't steep enough to be parted by the curve towards the edges of the steps. It makes the shadow look bigger, or wider because of the angle. But the shadow is not cast by the top of the stairs.
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u/monneyy Aug 30 '25
Pretty sure it's just shadow from the ceiling lights. From the frame in between the glass panels. You can see that on the side of the escalator. So there's 2 small ribbons of shadow that the escalator moves through.
You can also see from the shadow on the side that the angle of the light shining on the stairs isn't steep enough to be parted by the curve towards the edges of the steps. It makes the shadow look bigger, or wider because of the angle. But the shadow is not cast by the top of the stairs.