"Night in the City"

I was thinking about "Night in the City" this morning, and I realized that there are two features that musically emphasize the "higher" in this section:

747 just left from gate eleven
And there's no turnin' 'round
'Cause it's just leavin' the ground
And getting higher

"Higher" is sung to A notes, but then a second vocal part echoes it at a higher pitch (C notes).  Then there's an ascending bass phrase: A C E A'.