The research objective is to provide headline statistical analysis on two key metrics - time and cost, and to use these metrics to compare PPP delivered projects with Traditionally procured projects. The study results are presented in Tables 5 to 10 as categorized below:
Metric | Cost | Time |
Normalised project performance based on the average based on the median |
|
|
Percentiles of project outcomes | ||
The number of projects within ± 5% of target time and cost estimates |
Even though the number of projects included in this study is the largest sample of similar studies, the number of projects in any particular category of projects is relatively small and thus statistical results should be treated as indicative outcomes rather than definitive results.
Full statistical results for the study are provided as Tables A3.1 and A3.2 in Appendix 3 and salient findings detailed in Tables 5 to 10.
Table 5 presents a summary of the cost-over-runs for projects and Table 8 presents a summary of time performance of projects when compared with the expected outcome at the start of the particular period under consideration.