International Survey of the Usage of Whole Building Life Cycle Assessment Software

Abstract

The pressure to reduce the environmental impacts of buildings over their lifetime has driven certification bodies and the government to require a Life Cycle Assessment (LCA). However, LCA is a data-intensive and time-consuming process which complicates design activities, especially when performing a Whole Building LCA (WBLCA). Software tools can simplify the assessment by providing information more aligned with the users’ needs. This research surveyed 178 building designers who utilise WBLCA software as a decision-making tool. The aim was to identify patterns in the usage of the software and provide guidance to WBLCA software developers. For this purpose, statistical analyses identified the software preferences within each group of users, e.g., the users’ geographical location, professional background and years of WBLCA experience, among others. The results identified challenges faced by the construction industry, such as the need for more efficient communication among stakeholders. Therefore, attributes that allow designers to share information were rated as the most valuable. Two main groups of users were identified, and guidelines were drawn based on the profiles of the groups. Improving software support to designers will enable WBLCA to be integrated more efficiently with BPP by improving the users’ experience and their ability to make more informed decisions.

Keywords

• design
• decision-making
• life cycle assessment (LCA)
• whole building life cycle assessment
• WBLCA
• survey the usage of the software