3D or multiple 2D

In my current project I'm superimposing a new physical layer in an urban context. Giving the public space a push towards three-dimensionality or at least multiple two-dimentionallity.
I'm also interested in taking on the task of incorporating the aspect of time as a fourth-dimension.

But how do you draw time?

This is one in a row of projects where Peter Cook is showing the flow of time (or metamorphosis, as he calls it) through a set of dynamic drawings.

Picture 1-4 drawn in July 1996 and 5-6, in March 2001
From: Drawing the Motive Force of Architecture - P. Cook