Infrastructure is the base in which economic growth is built upon. Roads, water systems, mass transportation, airports, and utilities are all examples of infrastructure.
The basic physical systems of a country's or community's population, including roads, utilities, water, sewage, etc. These systems are considered essential for enabling productivity in the economy is known as infrastructure. Developing infrastructure often requires large initial investment, but the economies of scale tend to be significant.
1. Basic and usually permanent framework which supports a superstructure and is supported by a substructure.
2. Relatively permanent and foundational capital investment of a country, firm, or project that underlies and makes possible all its economic activity. It includes administrative, telecommunications, transportation, utilities, and waste removal and processing facilities. Some definitions also include education, health care, research and development, and training facilities.