Public Works: These are projects commissioned by government agencies that are intended to serve the public's interest. They often involve building or maintaining infrastructure.
Urbanization: This is the process where an increasing percentage of a population lives in cities rather than rural areas. It's closely linked with industrialization and modernization which require extensive infrastructure development.
Civil Engineering: This is a professional engineering discipline that deals with designing, constructing and maintaining physical infrastructures like roads, bridges, dams etc.