axes of life and death
...the Roman cardo and decumanus... ... wonder whether the life and death axes of the Campo Marzio are also a reenactment of the ancient town planning axes. Upon inspection of the Ichnographia, the life and death axes are just a few degrees shy of corresponding with the cardinal points. Moreover, the cardo, the north-south axis corresponds to the axis of death in the Ichnographia, and traditionally "refers to the axis around which the universe rotates." The Campo Marzio axis of life, the east-west axis, the decumanus, refers to the rising and setting of the sun.
...the Arch of Theodosius et al is placed at the tip of the axis of death. In its smallness (and apparent insignificance) it reminds of the tiny unnamed intercourse buildingat the tip of the axis of life. What is of utmost significance, however, is that this particular Triumphal Arch is indeed one of the very latest building additions rendered within the Ichnographia, and dates from anywhere between AD 367-395.
The placement of this arch at the tip of the axis of death is symbolic in that it represents the very end--Theodosius was the last Emperor to rule over both the East and West Empire, and it was he who instituted Christianity as the state religion--the end of the pagan empire and the end of any semblance of a totally unified empire. Thus, the intercourse building at the tip of the axis of life represents the very beginning (of life and quite possibly of the Ichnographia's plan formations, as well) and the Arch of Theodosius et al at the tip of the axis of death represents not only Rome's end as the sole capital of the civilized world, but also its end as capital of the pagan world.
It is through his plan of the city of Rome that Piranesi writes (and/or rights) the history of Rome itself. Through the Ichnographia Piranesi reenacts the history of the city.
...the Ichnographia represents Rome at its pagan zenith...
4 September 1997 and today
Sometime in 1998 I learned of the Eugene J. Johnson article "What Remains of Man--Aldo Rossi's Modena Cemetery" in The Journal of the Society of Architectural Historians (March 1982), where Johnson adroitly demonstrates how Rossi's cemetery design closely compares with Piranesi's Bustum Hadriani as delineated within the Ichnographia of the Campo Marzio. What Johnson does not point out however, is that Rossi essentially reenacted the Ichnographia's axis of death which actually intersects the Ichnographia's demarcation of ancient Rome's Triumphal Way. Piranesi's plan delineations of the intersection of the axis of death and the Triumphal Way themselves manifest a reenactment of the ancient Roman camp/urban planned crossing of a cardo and decumanus.