[T]unnels are not photogenic; they strike no heroic silhouette against the sky, despite whatever ingenius engineering might have gone into their construction. A bridge, on the other hand, is a proud and soaring thing that makes for great publicity shots and tourist brochures. It is a rare mayor or city official who can turn down such eye candy…
— Thomas J. Campanella, The Concrete Dragon: China’s Urban Revolutions and What it Means for the World, (New York: Princeton Architectural Press, 2008), 77.
