There is much in Bangkok that jumps to mind when talking about waiting. There is sitting in a car in a traffic gridlock, sitting still for an hour over the course of a regularly 30-minute drive. Or waiting in lines in one government office or another. Or any number of other travel or traffic-related waits.
In this case, though, we see parents lining up, waiting to pick up their children at the end of a school day. This line of cars winds down the road and into the side-streets around the school twice a day, like clockwork. It then feeds into the gridlock of rush hour I mentioned earlier.