Public infrastructure is infrastructure owned or available for use by the public (represented by the government).^[1] It is distinguishable from generic or private infrastructure in terms of policy, financing, purpose, etc.

Public infrastructure is a general term, often qualified specifically as:^[1]

• Transport infrastructure – vehicles, road, rail, cable and financing of transport
  • Aviation infrastructure – air traffic control technology in aviation
  • Rail transport – trackage, signals, electrification of rails
  • Road transport – roads, bridges, tunnels
• Critical infrastructure – assets required to sustain human life
• Energy infrastructure – transmission and storage of fossil fuels and renewable sources
• Hazardous waste – characteristics, disposal, handling of hazardous waste
• Information and communication infrastructure – systems of information storage and distribution
• Public capital – government-owned assets
• Public works – municipal infrastructure, maintenance functions and agencies
• Solid waste – generation, collection, management of trash/garbage
• Sustainable urban infrastructure – technology, architecture, policy for sustainable living
• Water infrastructure – the distribution and maintenance of water supply
• Wastewater infrastructure – disposal and treatment of wastewater
• Infrastructure
• Infrastructure-based development