David G. Carmichael
University of New South Wales
FinanceMathematical optimizationEngineeringEconomicsOperations management
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Publications 116
People are continuously making decisions, most of a minor nature, but also some of significance. Few people seem to enquire as to the basis of their decisions or as to why one decision is c...
#1David G. Carmichael (UNSW: University of New South Wales)H-Index: 15
#2Maria C. A. Balatbat (UNSW: University of New South Wales)H-Index: 9
Energy has unique features in terms of storage, transportation and consumption, while the energy price in deregulated markets exhibits its own uncertainty, volatility, spikes and seasonality characteristics. Hedging with energy options (energy derivatives) provides one way that players in the market deal with the price uncertainty and associated risk. Common financial option pricing tools, such as modified Black–Scholes and binomial and trinomial lattices, can be used to value the options. Howev...
#1Man Yu (UNSW: University of New South Wales)H-Index: 4
#2Mehdi Robati (UNSW: University of New South Wales)H-Index: 4
Last. David G. Carmichael (UNSW: University of New South Wales)H-Index: 15
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Abstract While traditional value engineering (VE) is primarily driven by cost saving, this study aims to comprehensively and reliably investigating the impact of traditional VE on the embodied greenhouse gas (GHG) emissions in the Australian built environment. An Australian-specific hybrid life cycle assessment (LCA) is developed and applied to a mixed-use building complex located in central Sydney, Australia. A list of GHG emissions intensities (GEIs) for 118 construction products is derived fr...
1 CitationsSource
#1David G. CarmichaelH-Index: 15
#1Nur Kamaliah Mustaffa (UNSW: University of New South Wales)H-Index: 2
#2David G. Carmichael (UNSW: University of New South Wales)H-Index: 15
ABSTRACTThe reduction of emissions within construction is seen as an agreed direction worldwide. In this light, the paper examines unit emissions in concreting operations, and provides guidelines for their reduction. Unit emissions and unit costs are calculated through a queuing model for concreting operations where trucks cycle between a batching plant and site. A time-production constraint exists. Sensitivity-style analyses are used to evaluate the influence of truck capacity, unloading policy...
Purpose The purpose of this paper is to present a novel hybrid fuzzy-system dynamics (SD) approach for the quantification of the impacts of construction claims. Design/methodology/approach The most significant claims affecting a project are identified. The various factors affecting the impacts of claims are identified. Then, the qualitative model of construction claims is constructed considering the complex inter-related structure of the influencing factors. The mathematical relationships among ...
1 CitationsSource
#1Mehdi RobatiH-Index: 4
#2Philip OldfieldH-Index: 4
Last. David G. CarmichaelH-Index: 15
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#1Farnad Nasirzadeh (Deakin University)H-Index: 8
#2Mohammad Ghasem Kashi (IUST: Iran University of Science and Technology)
Last. Ali Akbarnezhad (USYD: University of Sydney)H-Index: 13
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Abstract This research presents a new fuzzy-based approach for quantitative assessment of construction projects risks. Using the proposed approach, the risk is decomposed into internal and external root causes prompting it and the probability of occurrence of risk is assessed by fault tree analysis (FTA). The impact of identified risks is then assessed by event tree analysis (ETA) considering the possible negative scenarios arising from the occurrence of a risk. Owing to the imprecise and uncert...
#1David G. Carmichael (UNSW: University of New South Wales)H-Index: 15
#2Xuesong Shen (UNSW: University of New South Wales)H-Index: 6
Last. Vachara Peansupap (Chula: Chulalongkorn University)H-Index: 9
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Abstract Attitudes in the construction industry towards emissions and cleaner production are mixed. Many in the industry do not measure their emissions, or show awareness or progress towards minimizing emissions, but rather focus on more traditional matters of time, cost and production. Some writers suggest cost, or an industry perception of extra cost, as a main barrier to implementing more sustainable practices. There has been a slow shift to a sustainability mindset, but commonly this shift i...
2 CitationsSource
#1David G. Carmichael (UNSW: University of New South Wales)H-Index: 15
#2Tuan Anh Nguyen (UNSW: University of New South Wales)
Last. Xuesong Shen (UNSW: University of New South Wales)H-Index: 6
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