2005 2015 construction demand capacity study full report june 2006 contents page 1 executive summary 5 background 2 scope of the 3 economic characteristics industry 6 4 constraints model 7 forecasts 8 use scenarios 9 impact major projects on outcomes key conclusions 10 considerations for ogc and stakeholders introduction 12 defining measuring 13 a definition lessons from other studies 14 inflation delays & quality pre versus site issues trends in 16 global uk 17 regional 18 sectoral 19 supply dynamics 22 overview regionality specificity 23 note complexity structure conduct