List of megaprojects (fictional)

This is a list of megaprojects. "Megaprojects are temporary endeavours (i.e. projects) characterized by: large investment commitment, vast complexity (especially in organizational terms), and long-lasting impact on the economy, the environment, and society". The number of such projects is so large that the list may never be fully completed.

Definitions
Megaprojects may be defined as:
 * Projects that cost more than US$1 billion and attract a large amount of public attention because of substantial impacts on communities, environment, and budgets.
 * Projects can also be "initiatives that are physical, very expensive, and public".

Megaprojects require care in the project development process to reduce any possible and. Examples of megaprojects include bridges, tunnels, highways, railways, airports, seaports, power plants, dams, wastewater projects, s (SEZ), oil and natural gas extraction projects, public buildings, information technology systems, aerospace projects, and weapons systems.

This list identifies a wide variety of examples of major historic and contemporary projects that meet one or both megaproject criteria identified above.

Disaster cleanup
While most megaprojects are planned and undertaken with careful forethought, some are undertaken out of necessity after a natural disaster occurs. There have also been a few.

Energy projects

 * See also: List of largest power stations in the world, and List of photovoltaic power stations

Roads & Transport infrastructure

 * Main article: List of transport megaprojects

Ground transportation systems like roads, tunnels, bridges, terminals, railways, and mass transit systems are often megaprojects. Numerous large airports and terminals used for airborne passenger and cargo transportation are built as megaprojects.

Planned cities and urban renewal projects
Infrastructure systems that include electricity, sewer, telecommunications, and transportation. Building cities that include Skyscrapers, housing, etc. requires concrete, steel, glass, and most especially that workers in all the trades to undertaker the massive scale of these megaprojects.

Water-related
Ports, waterways, canals, and locks for Passenger Ships and Cargo Ships carrying passengers and cargo from country to country and islands nations are built as megaprojects