This is my take on Portelas 22/Jun/2007. It is from Google Earth.
Here is what I see.
I see rubbish dumped on the tarmac.
I see a JCB. It can only be moving rubbish from point A to point B.
I see a bunch of open lorry containers, arranged such that the JCB can dump rubbish into them.
The configuration of this work zone has changed significantly over time.
But in June 2007, the image shows a simple garbage in garbage out operation.
By the way, why are you online so late on a Saturday night? My excuse is that I shall be dog-sitting our new puppy while I watch the Australian Grand Prix.