Greengauge 21 is a not-for-profit organisation which aims to research and develop the concept of a high speed rail network, and to promote its implementation as a national economic priority.
Founded by Jim Steer, one of the country's leading transport sector specialists, Greengauge 21 has been established to progress the debate on High Speed Rail and to promote it in the public interest. The organisation has been conceived as an umbrella under which all those with an interest in supporting and promoting a High Speed Rail network can come together and openly and publicly debate the merits of alternative routes, priorities and technologies, alternative implementation strategies and the economic and environmental benefits for Britain.
On this website you can find out more about Greengauge 21, read about the case for high speed rail and download our publications.
To access the technical reports underpinning our HSR Development Programme 2008/09, click here.
Greengauge 21 will draw the attention of the wider public and business interests to the body of work that has already been carried out into High Speed Rail. We want to ensure that High Speed Lines are not subject to unnecessarily lengthy planning gestation periods because the problem is identifable now and the lead time is considerable for such a bold initiative. We also want to ensure that the enthusiasm of private promoters is not wasted in conflicting schemes that undermine the very idea we are all keen to promote.
Download Fast Forward: a high-speed rail strategy for Britain (5.8MB PDF).

- Latest News
- GG21 Documents
14 December 2009
A new report by Greengauge 21 highlights the success of Kent's high-speed trains.
16 September 2009
Greengauge 21 announces its high-speed rail strategy for Britain, developed through a work programme funded by its influential Public Interest Group.
15 January 2009
Welcome to the Secretary of State's announcement on High Speed Two
29 October, 2008
Welcome to the Secretary of State's announcement on Strategic Transport Networks Group
28 September, 2008
Greengauge 21 Welcomes Conservative Party Commitment to High-Speed Rail
19 September, 2008
Launch of Greengauge 21 Public Interest Group
December 2009
Early Lessons from Kent
September 2009
Fast Forward: a high-speed rail strategy for Britain (5.8MB PDF)
May 2009
Energy Consumption and CO2 Impacts
March 2009
Review of Existing Work on HSR
December 2007
The Next Steps for High Speed Rail in Britain
June 2007
High Speed Two: A Proposition by Greengauge 21
January 2006
Manifesto: The High Speed Rail Initiative
