The picture is lifted from here on 3quarks. I don’t know anything about the picture. The traffic is quite light; it could be a sunday morning or something, which makes the haze all the more impressive.
Huge interchanges fascinate me, in the light of the constant assertions of the powerlessness of the public sector to achieve anything non-automotive. These are astonishing constructions, the likes of which were never seen on earth before the modern era, and are treated as mundane, especially in the southern half of the US, where respect for government is perhaps lower than anywhere on earth.
The south (and for these purposes that includes California) is a land of bizarre contradictions that are somehow invisible to the natives.