1. Department of Civil and Structural Engineering, University of Sheffield, Sheffield, UK
2. Environmental Policy Consulting, Warwickshire, UK; Principal Sustainability Consultant, Stantec, Leeds, UK
3. Construction Industry Research and Information Association, London, UK
4. Stantec, Leeds, UK
5. Chartered Institution of Water and Environmental Management, London, UK
6. Department of Environment & Innovation, Bax & Company, Barcelona, Spain