ATCO Summer Conference, Llandudno, Wales, 14 -15 June 2007.
Why public transport? Why ATCO?

Solar Cities Congress, Oxford, April 2006.

Keynote speech for the 17th Annual TRICS Conference on Achieving Sustainable Growth, Regents Park Marriott Hotel, London, 1-2 November 2005.

Published in World Transport Policy and Practice Vol.7, No.4, 2001.

A memorandum for the Environment, Transport and Regional Affairs Committee.

Published in Parliamentary Review, Conference Edition, 1996.

Paper presented at the workshop Environment, traffic and urban planning, European Academy of the Urban Environment, Berlin, Germany 30 Nov - 4 Dec 1992.

Manchester Statistical Society, Occasional Paper, July 1992.

Cambridge Econometrics Annual Conference, 6-7 April 1992 ‑
Transport, Communications and the 21st Century.