Investment in infrastructure refers to the allocation of resources to develop and maintain essential facilities and systems that support economic activity. This includes projects like roads, bridges, public transportation, water supply, and energy systems. Such investments are crucial for enhancing connectivity, improving public services, and fostering economic growth. Governments and private entities often collaborate on infrastructure projects to ensure they meet the needs of communities. Effective infrastructure investment can lead to job creation, increased productivity, and improved quality of life for residents. Examples of infrastructure investment can be seen in major cities where public transit systems are expanded or renewable energy sources are developed.