Tracking marks

The video is taking a late change-
instead of tracking all people, it might be more effective tracking just one... or a couple.
i have also been looking into the tracks and lines used to track the motion of people and things...
for example... the aboriginal travelling sign used to indicate travel.. (robert barton)
or different lines in orienteering or mapping that mean different things.




Purple (or red) is used to mark the orienteering course on a map. Conditions that are specific to an event (such as out-of-bounds fields in which crops are growing) are also designated in red or purple.

this would then tie in the colours and marks made by the people on the video... or could also change the meaning or conception of the work.