Abstracts – Browse Results
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Abdulla, H S (2016) An investigation on the causes and remedial measures on the delays in the construction industry in the Kingdom of Bahrain, Unpublished PhD Thesis, School of Engineering and Built Environment, Glasgow Caledonian University.
Alrashed, F A (2015) Design and application of zero-energy homes in Saudi Arabia, Unpublished PhD Thesis, School of Computing, Engineering and Built Environment , Glasgow Caledonian University.
Callaghan, N (2013) Alignment of house buyer and house builder opinions in the delivery of energy efficient homes in Scotland, Unpublished PhD Thesis, School of Computing, Engineering and Built Environment , Glasgow Caledonian University.
Charles, A (2012) Factors affecting the transformation of existing (no-fines concrete) dwellings to low carbon homes, Unpublished PhD Thesis, , Glasgow Caledonian University.
Endut, I R (2008) Framework for minimising time overruns of Malaysian construction projects, Unpublished PhD Thesis, School of the Built and Natural Environment, Glasgow Caledonian University.
English, J (2007) The development of women in the South African construction workforce in terms of employment, training and skills acquisition, Unpublished PhD Thesis, , Glasgow Caledonian University.
Graig, N (2007) The prevailing trends of defects and snagging in new homes in the UK, Unpublished PhD Thesis, , Glasgow Caledonian University.
Hare, W J (2006) Integration of health and safety planning in construction project management through the development of a best practice gateway model, Unpublished PhD Thesis, , Glasgow Caledonian University.
Leblanc, H (2012) Knowledge mapping and process modelling to develop a sustainability-related knowledge management strategy for Scottish housing association planned works, Unpublished PhD Thesis, , Glasgow Caledonian University.
Lee, C C (2007) Developing an appropriate methodology for matching project team's knowledge with client's project requirements in refurbishment projects, Unpublished PhD Thesis, School of Built and Natural Environment, Glasgow Caledonian University.
Lowe, J (1993) Construction productivity: an input-output approach , Unpublished PhD Thesis, , Glasgow Caledonian University.
Magdub, R H (2006) Application of the lump sum turnkey contracts in Libyan civil law with reference to English law and international practice, Unpublished PhD Thesis, School of Law and Social Sciences, Glasgow Caledonian University.
McGibbney, L J (2012) Better regulation of construction activity through data modelling, Unpublished PhD Thesis, , Glasgow Caledonian University.
McNairney, F (2012) Using images to overcome communication hurdles posed by foreign site operatives, Unpublished PhD Thesis, School of Engineering and the Built Environment, Glasgow Caledonian University.
Meldrum, A (2009) Measuring worker engagement as an aspect of health and safety performance in the construction industry: towards a best practice tool, Unpublished PhD Thesis, School of Engineering and the Built Environment, Glasgow Caledonian University.
Morrow, S (2012) Balancing a safer and healthier frame to designing: A grounded theory, Unpublished PhD Thesis, , Glasgow Caledonian University.
Odeyinka, H. A. (2003) The development and validation of models for assessing risk impacts on construction cash flow forecast, Unpublished PhD Thesis, School of the Built and Natural Environment, Glasgow Caledonian University.
- Type: Thesis
- Keywords: Artificial neural network; cash flow; logit transformation; model; risk factors;
- ISBN/ISSN:
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- Abstract:
Various ’short cut’ approaches have been adopted in cash flow forecasting. However, the majority of these approaches failed to consider the issues of risks inherent in construction. As such, a wide variation is observable between the predicted cash flow profile and the actual. This study attempts to model the variation between predicted and actual cash flow due to inherent risks in construction. The aim of the model is to provide a decision support tool for the construction contractor so that in case of risk occurrence impacting cash flow forecast during construction, the new cash flow profile can be determined without recourse to cumbersome calculations. Data were obtained through three sets of postal questionnaire surveys and empirical data collection from Construction Company’s archive. The first two questionnaire surveys tried to explore different dimensions of risk in order to determine the one to focus attention on for model development. The first questionnaire survey, which was a pilot study, focused on the probability/impact assessment of risk variables involved in cash flow forecasting. The 21 risk variables examined in this survey were those impacting the positive cash flow (cash in or value flows). The second questionnaire survey focused on the extent of occurrence/impact assessment of risk occurrence in cash flow forecasting. The 26 risk variables examined in this investigation were a modification of and addition to the risk variables in the first questionnaire. The risk variables in the second survey were those impacting the negative cash flow (cash out or cost flows). Responses to the surveys were analysed using various statistical techniques, including mean response analysis, ANOVA and factor analysis. The results of the analysis from the second questionnaire survey were found suitable for further use in model development. From the 26 risk variables investigated, 11 significant risk variables were determined which were focused on for model development. Moreover, using factor analysis, the 26 risk variables were reduced to six factors, which were also used for model development. The impacts of these significant and factorised risk variables on cost flow forecast were then investigated through two sets of data for the purpose of model development. One was through a third questionnaire survey done on a project-by-project basis. The second was by collection of archives data on predicted and actual cost flow from completed construction projects in order to determine their variation at 30%, 50%, 70% and 100% completion stages. Quantity Surveyors on each of the projects were requested to score on a Likert type scale, the extent of occurrence of the determined significant and factorised risk variables. The data sets were used to develop risk/impact assessment models using multi linear regression as well as Artificial Neural Networks (ANN). Models developed from the first and second data sets were validated using 20 and 15 virgin data sets respectively. Models developed from the archives data, using the 11 significant risk variables and employing the ANN back propagation algorithm was found to perform better than others. Curve fitting using the technique of logit transformation and curves’ goodness of fit measure using the SDY (standard deviation about the estimate of Y) measure shows that the model performs creditably well in comparison with models developed in related studies.
Rostami, A (2015) Risk management in small and medium enterprises in the UK construction industry, Unpublished PhD Thesis, School of Engineering and Built Environment, Glasgow Caledonian University.
Rostron, J (2021) Improving access design considerations in buildings and services for people with disabilities, Unpublished PhD Thesis, , Glasgow Caledonian University.
Saka, N (2013) The impact of foreign direct investment on the construction sectors of Africa, Unpublished PhD Thesis, , Glasgow Caledonian University.
Shehu, Z (2008) The framework for effective adoption and implementation of programme management within the UK construction industry, Unpublished PhD Thesis, , Glasgow Caledonian University.
Sulaiman, N F (2002) The development of a dual phase approach to embracing a total quality culture in the Malaysian construction industry, Unpublished PhD Thesis, , Glasgow Caledonian University.
Suresh, S (2006) Knowledge capture in small and medium enterprises in the UK construction industry, Unpublished PhD Thesis, , Glasgow Caledonian University.
Takim, R (2005) A framework for successful construction project performance, Unpublished PhD Thesis, , Glasgow Caledonian University.
Tong, M K L (2011) The management of inter-organisational relationships and project based learning, Unpublished PhD Thesis, School of Engineering and Built Environment, Glasgow Caledonian University.
Trushell, J M (2010) A history of the quantity surveying profession in scotland to the late-twentieth century, with special reference to john dansken & purdie, chartered quantity surveyors, Unpublished PhD Thesis, , Glasgow Caledonian University.
Yfanti, S (2015) An investigation of critical success factors for the creation of clusters within micro companies working in the construction sector, Unpublished PhD Thesis, Department of Business Management, Glasgow Caledonian University.