An Exploratory Multi-objective Retrofit Decision-making Process

The retrofit processes for buildings necessitates long-term planning and costly operations and requires a collaborative approach where a high number of alternative solutions should be explored by stakeholders. However, the evaluation of a range of retrofit solutions is a complex process wherein various design parameters and objectives are involved. The identification of the most effective solutions requires a collaborative evaluation in order to satisfy all stakeholders' expectations; however, during the decision-making process, stakeholders may generally have conflicting objectives. This paper discusses different user preference-based decision-making approaches for building retrofit that involves the collaborative evaluation of multiple design parameters and objectives simultaneously. For this purpose, we demonstrate a simulation-based approach for performative exploration for building retrofits, which may allow a broader consideration of alternative retrofit solutions to increase stakeholders' involvement over design decisions for improved building performance. In this regard, a hypothetical office building was selected, and a list of possible retrofit scenarios focusing on multiple objectives was determined. Following, energy simulations for each scenario combination were conducted. The simulation results were presented with a Parallel Coordinate Plot (PCP), which visualizes the entire solution set and allows stakeholders to filter the results gradually based on various preferences. The presented approach has the potential for well-informed retrofit decision-making through the visualization of two different but interrelated design and performance spaces simultaneously, where the relationship between these two spaces can be explicitly visualized. Using these visualizations, different means of the evaluation were discussed according to various stakeholder types.


Authors:

Şahin Akın, Orçun Koral İŞERİ, Bilge Erdoğan, İpek Gürsel Dino


https://www.researchgate.net/publication/343905744_An_Exploratory_Multi-objective_Retrofit_Decision-making_Process

https://www.youtube.com/watch?v=DpkEYkShlIQ&t=16s&ab_channel=orcunkorali%C5%9Feri

https://ati.yasar.edu.tr/proceedings/




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