Why Big Projects Succeed or Fail
In 2008, California voters approved a high-speed rail line between Los Angeles and San Francisco with a price tag of $33 billion. Years later, costs had surged toward $100 billion, and the project had shrunk to a shorter inland segment. What began as a bold public promise became a familiar story of delay, cost growth, and reduced ambition.
A very different result came from a school-building effort in Nepal. Bent Flyvbjerg helped plan a program that delivered twenty thousand schools and classrooms in remote areas, finishing years ahead of schedule and on budget. The buildings were strong enough to survive a major earthquake later on, showing that speed in delivery can come from patience in preparation.
Two forces shape the fate of large projects again and again. One is psychology: people are naturally overconfident, too optimistic, and too quick to believe they understand more than they do. The other is power: politicians, executives, and contractors often have incentives to promise too much, hide risks, or push ahead before the facts are clear.
These forces produce a damaging pattern. Teams think fast at the beginning, commit too early, and then spend years moving slowly through repairs, redesigns, and conflict. Better results come from reversing that pattern: think slowly before construction starts, then move quickly once the plan is ready.
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