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Table 6 Pathway impacts for the five rail infrastructure alternatives j

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

  Environmental impact (£bn) Social impact (£bn)
  Pathway minimum Pathway maximum Range Pathway minimum Pathway maximum Range
High Speed Rail −4.31 −2.23 2.08 −3.20 0.29 3.49
High Speed Rail with Option to Expand −4.31 −2.23 2.08 −3.20 0.29 3.49
Commuter Rail −2.93 −2.19 0.74 −0.61 0.29 0.90
Commuter Rail with Option to Expand −3.06 −2.19 0.87 −0.61 0.29 0.90
Full Rail −3.06 −2.30 0.76 −0.61 0.29 0.90
  Financial impact (£bn) Service impact (£bn)
  Pathway minimum Pathway maximum Range Pathway minimum Pathway maximum Range
High Speed Rail −14.48 13.18 27.66 −40.13 0.90 41.03
High Speed Rail with Option to Expand −20.39 11.38 31.77 −40.13 0.90 41.03
Commuter Rail −16.26 13.63 29.89 −2.43 0.90 3.33
Commuter Rail with Option to Expand −20.39 13.33 33.72 −2.43 0.90 3.33
Full Rail −18.26 11.94 30.20 −2.43 0.90 3.33