ted countries, late 1990s 5.16. Projected expenditures on water and wastewater services 5.A1.1. Changes in household water use for EU countries 5.A1.2. EU Domestic water consumption per capita per year (m³ List of figures 1.1. The axes of uncertainty and the four scenarios defined by combinations of those axes 1.2. The "perpetual motion" scenario 1.3. Linear infrastructure 1.4. Sustainable urban infrastructure 1.5. Foresight vehicle technology roadmap: main capabilities identified 2.1. Telecommunications subscribers worldwide 2.2. OECD broadband penetration (per 100 inhabitants) net increase Q2 2004-Q2 2005, by country 2.3. Broadband takeup over first 10 years is faster than previous services across the OECD 2.4. OECD broadband subscribers per 100 inhabitants, by technology, June 2005 2.5. Accessibility and telecoms development 2.6. Global user population growth 2.7. Demand takes off at a certain price point - the perception of freeness 2.8. DSL % availability in GSM 2.9. The low cost infrastructure to 2015 - a mix of competing infrastructures, technologies and operators 2.10. 21 CN's simplified core 2.11. Capacity projection for Wave Division Multiplexing (WDM) fibre, and Optical fibre Time Tivision Multiplexing (OTDM) 2.12. Growth in satellite communication capacity 2.13. AWTS offer lower infrastructure cost 2.14. Radio prolongation of wired access point 2.15. The future fibre-radio composite infrastructure - a simplified network INFRASTRUCTURE TO 2030: TELECOM, LAND TRANSPORT, WATER AND ELECTRICITY - ISBN 92-64-02398-4 - © OECD 2006 TABLE OF CONTENTS 2.16. A compound network for security - suggested integration of multiple AWT networks into a single security resource 2.17. OECD average of public telecommunication investment as a percentage of gross fixed capital formation (GFCF) 1990-2003 2.18. Growth of subscribers 2.19. The key trend is to cheaper infrastructures - Capex per new subscriber in kUSD 1992-2003 2.20. Conversion to all IP infrastructure of fibre and radio access 2.21. Example of major business di