Research and analysis

High Speed Rail in the Chilterns

A summary of general tunnel requirements and assessments of tunnel proposals made by petitioners against the High Speed Rail (London – West Midlands) Bill in the Chilterns.

Documents

High Speed Rail in the Chilterns Part 1: General Long Tunnel Requirements

High Speed Rail in the Chilterns Part 2: Chiltern Long Tunnel Proposal

High Speed Rail in the Chilterns Part 3: CRAG Proposal

High Speed Rail in the Chilterns Part 4: REPA Proposal for Extended Chilterns Tunnel

Detail

In response to proposals by petitioners in the Chilterns, and in response to petitions against the High Speed Rail (London – West Midlands) Bill, a number of options for a tunnel or tunnel extension in the Chilterns have been evaluated by HS2 Ltd.

General requirements for long tunnels are set out in Part 1, and the assessment of various options proposed by Petitioners are set out in Part 2 - 4. Part 3 has been updated as of June 2016.