If I'm interpreting the second picture right, he may be one step ahead with traffic. It looks like each carriageway has a continuous slot, so I'm going to guess

If I'm interpreting the second picture right, he may be one step ahead with traffic. It looks like each carriageway has a continuous slot, so I'm going to guess that traffic is on a very long loop, one for each direction so the traffic is constantly moving over that bridge. Can't tell from what I can see of the city detail in the last photo if that's the same.