Landmark Case Studies in Global PPP

Terminal 5 at Heathrow became the UK's largest freestanding building and the most complex airport terminal in history. Despite a disastrous opening day in March 2008, the structure itself became a landmark in PPP infrastructure delivery, setting standards for risk allocation, design procurement, and long-term asset management.

The N4 Maputo Corridor — Africa's most ambitious BOT toll road linking Johannesburg to the Mozambique coast — became a globally studied case of cross-border PPP in a challenging political and economic environment. Renegotiated twice due to traffic shortfalls and currency shocks, it nonetheless delivers positive returns and is now seen as a qualified success.

Chile's water sector privatization — particularly the concession of EMOS (now Aguas Andinas) in the Santiago metropolitan area — became the global benchmark for water PPP in emerging markets. Suez acquired the concession in 1999 and transformed service quality dramatically, under a highly innovative regulatory model.

Delhi Metro Phase III represents one of the most complex hybrid PPP structures in emerging markets — combining government construction with private station development rights, property joint ventures, and fare-box revenue sharing. It created a globally replicated model of transit-oriented development (TOD) as PPP value capture.

The Metronet Rail PPP — a £17B, 30-year contract to maintain and upgrade London Underground's aging infrastructure — collapsed into administration in 2007 after just 4 years, costing taxpayers an estimated £410M. The failure became the defining case study for PPP failure in public transport: why excessive complexity, over-leveraging, and misaligned incentives destroy value.