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Post Disaster Reconstruction (PDR) is a very important, complex and highly demanding process, including well planned set of activities done by well experienced construction professionals. Strength in terms of sustainability, particularly in the PDR of developing countries, is undoubtedly still not at an adequate level. One of the main challenges that affecting for the success of the PDR project performance is that not managing community cultural continuity properly while affording development opportunities in PDR projects which end up with cultural incompatible solutions, which are unsustainable in the long run. The success of PDR project performance is based on the success of their main 4 components: site, layout, construction and policies. The study identifies how those components of PDR projects are affected by the community culture with the lessons learned by past PDR project experiences all around the world. Further, the cultural factors which affect for each feature of PDR has been identified through the findings. Besides the thorough literature findings, the study has presented with proposed methodological aspects in order to continue the study in future.

The nature of the business environment is very complex in the construction industry. Huge capital investment, supply chain management, resource scarcity and uncertainty create a multifaceted background along with impressive external environmental impacts. Thus, contracting organizations are highly influenced by the competitive nature of the construction industry. Hence identifying the impact of competitive forces to the contractors in Sri Lanka is identified as vital. Besides, Porter’s five competitive forces model is grounded to interpret the competition through external environment and it denotes that there are five forces which can affect to the competition of an industry; new entrants, suppliers, buyers, substitutes and the existing competitors. Thus, the research leads to examine the impact of competitive forces to the contractors in Sri Lanka using a comprehensive Porter’s Five Forces analysis. The research employs a quantitative approach consisting of preliminary survey of experts and questionnaire survey with the participation of construction experts in Sri Lanka. In order to analyse the collected data, statistical tools such as RII method and measurements of central tendency were employed. The results of the analysis elicited 28 significant factors that determine the power of the five competitive forces on local contractors. Accordingly, the final outlined Porter’s five forces analysis matrix enables the contractors to analyse the impact of each competitive force through identified determinant factors which would provide a proper guidance on determining necessary offensive or defensive strategies to be taken to survive in the market.