Browsing by Author "Tookey, J"

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item: Conference-Full-text
The adoption of integrated project delivery in public sector projects in New Zealand: the way forward
(Ceylon Institute of Builders, 2016-07) Naismith, N; Tookey, J; Hoseini, AG; Kekreja, R; Sandanayake, YG; Karunasena, GI; Ramachandra, T
The construction industry in New Zealand is responsible for around 40% natural resources, 30% energy consumption, and 30% greenhouse gases. The increased costs in natural resources, and energy, together with environmental concerns have pushed the demand for green buildings. Integrated Project Delivery (IPD) process has emerged as an enabler for green buildings. Successful IPD combines the partnering concept and lean thinking, it addresses the participant’s expectations, cuts costs, eliminates waste, reduces variability and generates value for all the participants. Yet many public sectors owners, do not have the authority to adopt features of IPD. However, owners can benefit from the IPD philosophy and features to take advantage of some key benefits. The purpose of paper is to examine the IPD tools and techniques appropriate for public sector organizations in New Zealand and to examine the barriers that public sectors organizations face in New Zealand while adopting those IPD features. A pilot study was conducted to examine these issues, semi structured interview were carried out with four public sector construction industry specialists. The interviews revealed that there is a gap between current and best practice in the New Zealand construction industry that is impacting on the adoption of IPD or IPD approaches. To improve the delivery of public sector projects a checklist of specific IPD tools and techniques appropriate for NZ public sector projects has been developed.
item: Conference-Full-text
THE ADOPTION OF INTEGRATED PROJECT DELIVERY IN PUBLIC SECTOR PROJECTS IN NEW ZEALAND: THEWAY FORWARD
(2016-09-06) Naismith, N; Tookey, J; Hoseini, AG; Kekreja, R
The construction industry in New Zealand is responsible for around 40% natural resources, 30% energy consumption, and 30% greenhouse gases. The increased costs in natural resources, and energy, together with environmental concerns have pushed the demand for green buildings. Integrated Project Delivery (IPD) process has emerged as an enabler for green buildings. Successful IPD combines the partnering concept and lean thinking, it addresses the participant’s expectations, cuts costs, eliminates waste, reduces variability and generates value for all the participants. Yet many public sectors owners, do not have the authority to adopt features of IPD. However, owners can benefit from the IPD philosophy and features to take advantage of some key benefits. The purpose of paper is to examine the IPD tools and techniques appropriate for public sector organizations in New Zealand and to examine the barriers that public sectors organizations face in New Zealand while adopting those IPD features. A pilot study was conducted to examine these issues, semi structured interview were carried out with four public sector construction industry specialists. The interviews revealed that there is a gap between current and best practice in the New Zealand construction industry that is impacting on the adoption of IPD or IPD approaches. To improve the delivery of public sector projects a checklist of specific IPD tools and techniques appropriate for NZ public sector projects has been developed.
item: Conference-Abstract
Generating value in alliance contracts through productivity improvements
Vilasini, N; Neitzert, TR; Tookey, J
Alliance contracting is a procurement approach which involves the collaboration of a project owner and non‐owner participants to share the responsibility for project risks and for achieving project objectives. There is evidence to suggest that in spite of significant benefits in this procurement system, there exist challenges that need to be overcome, particularly in relation to process improvements. The study will approach the problem from a ‘lean construction’ perspective. The objective of this research is therefore to investigate the potential for the application of lean production philosophies in alliance contracts in order to minimise waste. This study focuses on alliance projects which are comparatively large and complex in nature. It involves focusing on contextual and complex multivariate conditions which would necessitate the reliance on multiple sources of evidence. As such, it is envisaged that this study would benefit by undertaking the case study methodology to advance knowledge. The benefits are not difficult to understand because of the potential to reduce direct and overhead costs through reduction in time thereby increasing value through higher productivity. The study will provide the understanding of why productivity growth is hindered and how growth can be facilitated in an alliance contracts.
item: Conference-Full-text
The purpose of retentions: a review of the existing literature
(2012-06) Raina, P; Tookey, J; Raina, P., & Tookey, J. (2012). The purpose of retentions: a review of the existing literature. In S. Senaratne & Y.G. Sandanayake (Eds.), Global challenges in construction industry (pp. 285-293). Ceylon Institute of Builders. https://ciobwcs.com/downloads/WCS2012-Proceedings.pdf; Senaratne, S; Sandanayake, YG
Retention is a phenomenon practiced in the construction industry for well over a century. It is a contractual mechanism whereby a portion of money, due to the contractor/subcontractor is held back till the completion stage of the project. Half of it is released at the time of practical completion and the other half is released at the end of the defects liability or the maintenance period. Some countries have abolished this practice, others have tried to outlaw the practice but failed. Yet others seem to be content with the ongoing practice and find it useful, which is why it is important to understand as to why it is so. To achieve this objective it is first of all important to understand the ‘purpose of retentions’ or why are retentions used in today’s construction industry even though the industry has undergone radical changes in the past century or so. A review of the current literature suggests that retentions exist for a variety of purposes. Hence there seems to exist some form of disconnect between the actual and the intended purpose of retentions. Perhaps it is important to understand whether retentions are actually serving the purpose they are set up for. In this paper the author through an extensive literature review has identified a number of purposes of retentions. Data has been collected from 27 publications including books, journal articles, magazines, reports etc. Ten main purposes/themes have been identified from the data. A matrix has then been formed with the purposes on one axis and author/publication on the other. This has been done to find out what most authors/publications have said regarding the purpose of retentions. Having found the numbers with the help of the matrix the purposes are numbered in the order of most recurring to the least recurring. The top three purposes of retentions are found to be performance security followed by defect rectification and motivation for early or timely completion.