Elective Course HS2020 | Topology | Hönggerberg’s Secret

Elective Course HS2020 | Topology | Hönggerberg’s Secret
August 26, 2020 Dennis Häusler

The underground is in more than one way an infrastructure. Below the ground different facilities ensure the connectivity of todays urban life. An «above-ground» in the form as it’s known would not be possible without the hidden connectors, joints and services. The topological approach using point cloud modeling reveals the seemingly invisible networks and brings them in relation to the perceivable urban spaces above-ground. 


During the course, the students will work in groups of two with site specific three-dimensional point cloud models and sound recordings. After a two-day workshop on site the collected recordings will be assembled and built into an interactive application in the «Landscape Visualisation and Modelling Lab». All software required is open source and can also be installed on private laptops, hence worked from home if necessary.


TOOLS: Laserscanning / Sound recorders and contact microphones

TEACHING TEAM: Prof. Christophe Girot, Ludwig Berger, Dennis Häusler, Magda Kaufmann, Johannes Rebsamen, Matthias Vollmer

CONTACT: Dennis Häusler

Sept 17 General Introduction & Registration
Sept 24 Technical introduction I
Oct 01 Hands-On Basic Model
Oct 03-04 Workshop weekend
Oct 08 Individual Work
Oct 15 Early Mid Crit (first draft of final application)
Oct 22 No Course – Seminar Week
Oct 29 Individual Work
Nov 05 Individual Work
Nov 12 Late Mid Crit (second draft of final application)
Nov 19 Individual Work
Nov 26 Individual Work
Dec 03 Final Crit (final application)


In the case of the ETH Campus Hönggerberg the Underground was to a large extent planned during the first stages of construction and has been extended ever since. Besides the underground spaces each building contains there are many systems and networks which interconnect the buildings in the underground. Media like heating, cooling, gas, hydrogen and power supply are managed centrally and distributed through the underground to the individual buildings. 


These infrastructure not only build a world of their own, but also shape the spaces above ground, whether it’s the layout of streets and squares or the shape of water basins and parks, the visible elements on the surface are closely related to their supporting infrastructure below the ground. 

Student works of previous Semesters

Girot Absent Bridges