Abstract:
The construction industry plays a significant role not only in economic growth, but also in
environmental impacts. As the global recognition on sustainable development, the construction industry
is now highly challenged from high material consumption, energy consumption, CO2 emission, and
social problems. In addition, Singapore government has launched buildability appraisal system and
productivity enhancement scheme to encourage construction industry improve productivity. Under the
pressure of reducing environmental impacts and increasing productivity, economic goal is not the only
factor that should be considered when doing decision making. There is a clear need for a link between
economic performance, environmental performance and productivity performance. Sustainability
philosophy and constructability philosophy are useful when establishing such a link. However, little has
been done on the connection between constructability principles and sustainable development. This
paper presents a holistic framework to show the factors that affect the decision making on selecting
structural materials. Based on the framework, a decision support model is established using Multiattribute
value technique. The weights of 1st level factors and 2nd level attributes have been computed
using AHP method and 1-5 likert scale method. The rating method is offered as well.
