We take your money to build white-elephant projects, and in return we swamp you with people. Tung Chung the town that makes Tin Shui Wai look fun and hip is inundated, or you could say aggrieved, with package tourists coming over on the Zhuhai bridge. And the critics said no-one would use the thing
Heres a first-hand report on using the bridge to and from Macau. Basically, if you want the journey to take a leisurely (if you can read Chinese or Portuguese signage) three hours rather than the mere one it takes on the ferry, its great.
The author remarks that you have to leave the bus twice for passport checks at either end of the bridge. At the border-boundary with Shenzhen, of course, you also go through two immigration inspections, but they are just a minutes walk apart in the same virtually seamless building complex. So if you are changing buses, you do so once. On the ferry (as on an aircraft), you go through the checks in terminals at each end of the journey.
The Zhuhai Bridges immigration checks emulate an air/sea transport pattern rather than a land-crossing one. That is, after leaving your home you (probably) go bus-immigration-plane/ferry/bridge-immigration-bus to (say) your hotel.
The obvious solution would have been to have a three-way immigration hall combining the Mainland, Macau and Hong Kong checkpoints in one architecturally impressive triangular facility. As illustrated in this rather elegant diagram
My hunch is that officials insisted on the stupid option for symbolic rather than practical or technical reasons. The sensible arrangement would have given Hong Kong jurisdiction over most of the highway when the whole point is to jam simplified-character road-signs and other Mainland stuff right in the citys face. Because 50,000 people buying milk powder in Tung Chung isnt good enough.