The camera is positioned looking to the famous big screens used for advertisments as well as the whole circus. During the day there is always traffic no matter the weather, because its a well known touristic destination. Piccadilly Circus is a road junction and public space of London's West End in the City of Westminster. It was built in 1819 to connect Regent Street with Piccadilly. In this context, a circus, from the Latin word meaning "circle", is a round open space at a street junction.
Picadilly Circus webcam position