The homeless encampment was along an urban river/bike trail. There was a thread of vegetation along the concrete bedded river and apartments and houses surrounding. They found a drainage tunnel to store them. Someone else had dug a burrow big enough for a man to stand up in. There they found a 367 magnum. This was the homeless version of organized crime.
If I take the train to work, I ride past a fneced lot with about that many bikes. No real idea, but I assume they are part of some kind of recycling scheme.
And a smaller lot in Tokyo, where I thought that perhaps it was an impounded vehicle lot (since disposal is difficult in Tokyo, residents some times resort to abandoment).