HS2 | DfT orders environmental review of planned Bromford Tunnel extension Digital Edition: HS2 | DfT orders environmental review of planned Bromford Tunnel extension Transport secretary Grant Shapps has requested an environmental impact assessment for High Speed 2’s (HS2) proposed Bromford Tunnel extension. You have read 1 of 1 free-access articles allowed for 30 - days. For further access please register or Exclusive interviews and commentary from leading industry players Special reports on key events Access to NCE’s ‘The Future of…’ and ‘Innovative Thinking’ Full access to NCE Digital Issue archive Exclusive daily and weekly newsletters Register