There is a need to improve the current demolition techniques selection process that
involves a multicriteria decision making problems because the decision performed by
demolition engineers were based on their knowledge and experience without any
systematic procedure that can be followed to support the decision process. There is also a
need to capture the expert's knowledge since significant proportion of senior,
experienced demolition engineers are close to retirement, and unless their knowledge is
captured in some form, it would be lost. Concerning to these needs, the research aim is to
develop an intelligent decision support system that incorporated the demolition expert's
knowledge in selecting the most appropriate demolition techniques for a given structure.
Various research methodologies were adopted to achieve the aim. Literature on
demolition industry was first reviewed. Knowledge acquisition approaches were used to
capture the demolition expert knowledge, which included an industry survey through
postal questionnaire, semi-structured interviews, and protocol analysis. The rapid
prototyping methodology was used in developing the prototype system. The proposed
intelligent decision support system is called 'Demolition Techniques Selection System'
(DTSS). The prototype system consists of two stages. The first stage will assist the
decision maker to select the most appropriate demolition techniques in term of technical
aspects by using Analytic Hierarchy Process (AHP) model. The second stage allows the
decision maker to assess the demolition techniques in terms of cost by using the
Demolition Cost Estimation model. The prototype was evaluated during and after the
development process to verify, validates, and improves it. The evaluation revealed that
the prototype system demonstrated many benefits and applicable for use in the industry.
It is concluded that the prototype provides a clear, systematic and structured framework
that improved the current demolition techniques selection process. It also serves as an
information source that contains a considerable amount of information on demolition
techniques. It can act as a teaching aid for young professionals coming into the
demolition industry by giving them a basic information and understanding of demolition.
Demolition contractors can use the system as a marketing aid to impress potential clients
to win a project because of its ability to give rational and structured decisions with the
capability of generating graphical reports and sensitivity analysis.
A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy of Loughborough University.