The delivery of transport infrastructure projects may be viewed as a system with many interrelating factors whose
interactions define and influence the successful achievement of expected project outcomes. However, transport
infrastructure delivery has seldom been addressed under such a systems view. The present research studies the
transport infrastructure delivery system and its dynamics and identifies key tipping points in the project life-cycle
that may determine success or failure with respect to the achievement of specific project outcome targets. Key
safeguards are proposed to protect the success of infrastructure delivery over the life cycle of the infrastructure with
respect to decisions made by the various stakeholders over time. The methodology proposed may be used as a tool
for decision makers to predict the future outcome of their decisions