This includes all maintenance, renewal, upgrades and major projects, but not operational issues or the activities of Crossrail Ltd.
The IIPAG considers issues of economy, efficiency and value for money in preparing its advice. Members are:
Derek is a Fellow of the Chartered Institute of Building.
He has been involved in more than £16bn worth of investment in infrastructure, ranging from Angel Tube station's redevelopment, Heathrow Terminal 4, Heathrow Express Rail Link, Southern Region New Trains Programme and the Channel Tunnel Rail Link.
Derek Fryer - Declaration of interests
Terry is a Chartered Quantity Surveyor, Adjudicator and a non-practising Barrister. Formerly an Executive Director of one of the UK's largest constructions contracts consultancies, for the past 13 years he has maintained a diverse commercial practice where he has represented a variety of interests on major infrastructure projects in the UK and overseas.
Terry Fitzgibbon - declaration of interests
Ian is a chartered civil engineer and a fellow of the Institution of Civil Engineers. From 2008 to 2010 he held the position of engineering adviser on London's Crossrail programme.
For nine years he was BAA's head of the Terminal 5 Rail & Tunnels Group at Heathrow.
Previous projects included responsibility for the fit out and completion of BAA's Heathrow Express, the bid phase of West Rail Project in Hong Kong and more than seven years with the Channel Tunnel contractors TML.
Ian Fugeman - Declaration of interests
Paul is a Chartered Engineer and fellow of the Institution of Engineering and Technology. He is a Fellow and past President of the Institution of Railway Signal Engineers.
He has 30 years' experience in the transport sector and has held senior roles in engineering, business and project management at Network Rail, Railtrack and Racal Telecoms, including four years as Programme Director for a £1.5bn Railway Communications Project.
Paul has been an independent Consulting Engineer since 2008, working with a range of transport infrastructure managers and suppliers in the UK and abroad.
David is a Chartered IT Professional and a Fellow of the BCS. He was recently a central government Chief Information Officer and, previously, a senior army officer of the Royal Corps of Signals.
He has led strategic change programmes as Senior Responsible Owner within the Foreign Office, MOD and the British Army, and delivered operational ICT services in those organisations over many years.
He now works on cyber risk and programme management. He also chairs industry and Ofcom bodies covering technology issues involving use of the electromagnetic spectrum.
Colin is a chartered engineer and fellow and Past-President of the Institution of Railway Signal Engineers. Colin is experienced in the introduction of new signalling and railway control systems into the UK rail network.
He was chief executive of the Institution of Railway Signal Engineers from 2006 until 2015. From 2001 to 2012 he was the engineering director at Lloyds Register Rail, now Ricardo Rail.
Colin Porter - Declaration of interests
Chris is an experienced project and program manager and expert assurance reviewer of large complex public and private sector projects and programs. She is also a professional public sector procurement and contract manager.
Chris has a background in construction and ICT, having worked in major project and programme procurement and project management for more than 35 years.
After a successful 20-year project management career in UK Energy industry, Chris was project manager for the Oyster card. She now runs her own ICT consultancy company in addition to being a regular Assurance Team Leader for High Risk Projects for the UK Government Infrastructure Projects Authority (Cabinet Office). She also carries out a similar role for the Scottish, Welsh and Northern Ireland Governments, for the UK Department for Transport and for Highways England.
On the international stage she is an accredited Assurance Review Leader for the Australian ACT, Victorian and NSW Governments and the New Zealand Government.
IIPAG Annual Report 2014-2015
TfL management response to Annual Report 2014-15
IIPAG Annual Report 2013-2014
TfL management response to Annual Report 2013-2014
IIPAG Annual Report 2012-2013
TfL management response to Annual Report 2012-2013
IIPAG Annual Report 2011-2012
TfL management response to Annual Report 2011-2012
IIPAG Annual Report 2010-2011