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Table 3 CBA of airport as a single asset and as part of a portfolio infrastructure investment

From: Introducing system interdependency into infrastructure appraisal: from projects to portfolios to pathways

Asset Environmental (2010 prices, £bn) Financial (2010 prices, £bn) Service (2010 prices, £bn) Social (2010 prices, £bn) Total (2010 prices, £bn)
Airport (individual asset) −2.16 35.18 −43.65 −3.64 −14.28
Airport (portfolio) −0.32 37.49 −4.48 −0.85 31.85
Difference 1.84 2.32 39.18 2.80 46.13