Inside-out – Daylight in Urban-Design Modelling

DLA Annual Conference 2022
Parallel session F

Friday 14 October 2022
from 11:00 to 12:30

Lead
Prof. Hubert Klumpner, ETH Zurich, Chair of Architecture and Urban Design, Urbanthinktank_next, Switzerland
Dr Michael Walczak, ETH Zurich, Chair of Architecture and Urban Design, Urbanthinktank_next, Switzerland

Description
Daylight in evidence-based digital twins and simulation workflows are developed and used to perform quantitative and qualitative modelling of agent-based assessments. The goal is to help inform the decision and policy making processes at the different urban planning scales*. Numerous dynamic scenarios are evaluated through Key Performance Indicators (KPIs) to aggregate quality of life indicators and compare the effects of urban rules and policies on population and non-human welfare. Daylight simulations exist on a high level, however they are concentrating on indoor environments. Connecting inside and outside into one environmental system is at the core of our interest.

Digital modelling is structured in different layers, the agent-based methodology allows for cross-referencing and agents relating layers with each-other. Imagining daylight as one novel layer in the digital twin ecosystem is used to simulate the human agents behaviour , virtually measuring daylight exposure of individuals, where people choose to spend their time indoors and outdoors. Covered and uncovered public spaces are a particular interest, along with mobility patterns or the use of actual and virtual urban environments.

In our workshop, participants will be invited to discuss how to integrate and bridge the in-between indoor and outdoor daylight space in urban KPIs in order to assess scenarios in digital twins and urban simulations and cross-reference with other layers.

Objectives

  • Can we collect ideas and thoughts on KPIs and human behavior for daylight in urban modelling through an imaginary urban gaming situation: Where do you stay, for how long and when?
  • Can we open a discussion on how to bridge indoor and outdoor daylight in urban KPIs, e.g.: daylight exposure, shade, building orientation, street layout, daily activity plans of agents, etc.
  • Can we cross-reference urban design layers which have to be considered with daylight, e.g.: vegetation, trees, water, etc.
  • Can we define possible directions/goals for a “daylight in urban modelling” network/platform

 

* https://www.nsl.ethz.ch/urban-transformation-project-sarajevo/

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