Author:
De Marco Alberto,Narbaev Timur
Abstract
Aims:
This study illustrates the main factors that influence the cost overruns and schedule delays of tunnel construction megaprojects.
Objective:
An empirical analysis was carried out based on a dataset collected from a number of recent tunnel megaprojects worldwide.
Methods:
Analyses of variances and regression analyses were conducted to infer statistical significance and understand the relationships that exist between cost overruns, time delays and variables of context, technical, and governance characteristics of the sample projects.
Results:
The most significant factors are those related to the complexity of infrastructure and the type of contracting system used to deliver the project. In particular, some technical characteristics pertinent to the size of the tunnel reveal to be influencing factors of both schedule delay and cost overrun, while the usage of a traditional contracting mechanism is likely to impact the cost overrun. The type of infrastructure, region, ownership, and funding scheme are not found to be statistically significant determinants of cost and time performance.
Conclusion:
This analysis reaffirms that the size and complexity are important factors of typical low performance of tunnel construction megaprojects. The results of this study can be used for strategic design and planning by decision-makers, project managers and designers.
Publisher
Bentham Science Publishers Ltd.
Subject
Civil and Structural Engineering
Reference51 articles.
1. Judgev K, Müller R.
A retrospective look at our evolving understanding of project success.
Proj Manage J
2005;
36
(4)
: 19-31.
2. Cantarelli CC, Flybjerg B, Molin EJE, van Wee B.
Cost overruns in large-scale transportation infrastructure projects: Explanations and their theoretical embeddedness.
Eur J Transp Infrastruct Res
2010;
10
(1)
: 5-18.
3. Müller R, Judgev K.
Critical success factors in projects: Pinto, Slevin, and Prescott – The elucidation of project success.
Int J Managing Proj Bus
2012;
5
(4)
: 757-75.
4. Lehtonen P, Martinsuo M.
Three ways to fail in project management: The role of project management methodology.
Proj Perspect
2006;
XXVIII
(1)
: 6-11.
5. Brookes NJ, Locatelli G.
Power plants as megaprojects: Using empirics to shape policy, planning, and construction management.
Util Policy
2015;
36
: 57-66.
Cited by
9 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献