How common and how large are cost overruns in transport infrastructure projects?

@article{Flyvbjerg2003HowCA,
  title={How common and how large are cost overruns in transport infrastructure projects?},
  author={Bent Flyvbjerg and Mette K. Skamris holm and S{\o}ren L. Buhl},
  journal={Transport Reviews},
  year={2003},
  volume={23},
  pages={71 - 88}
}
Despite the hundreds of billions of dollars being spent on infrastructure development -- from roads, rail and airports to energy extraction and power networks to the Internet -- surprisingly little reliable knowledge exists about the performance of these investments in terms of actual costs, benefits and risks. This paper presents results from the first statistically significant study of cost performance in transport infrastructure projects. The sample used is the largest of its kind, covering… Expand

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