Sustainable urban infrastructure helps build resilience in cities by mitigating disaster risks, mitigating climate change impacts and adapting to impacts more effectively. Furthermore, it offers many other advantages, including environmental regenerative attributes and community well-being benefits.
Chicago’s newly released Sustainable Urban Infrastructure Guidelines offer CDOT projects an essential blueprint to use cutting-edge sustainable practices that contribute to meeting citywide environmental planning goals and meet CDOT projects’ sustainability objectives. They outline specific requirements, strategies and resources.
Water
Sustainable urban infrastructure allows for more effective allocation and use of water resources, with equipment and systems that use less energy in providing water while also decreasing greenhouse gas emissions and lessening their impact on natural ecosystems.
Sustainable infrastructure aims to ensure high quality of life for its community when faced with natural, climate and technological disruptions. This goal can be reached by balancing ecological, social and economic considerations to strike a balance between development and conservation of nature.
Sustainable urban infrastructure entails engineering, environmental, social and economic sciences. Key research themes in this arena include governance, engineered facilities and utilities, climate change adaptation strategies, services provision, metabolism e-city resilience as well as governance of urban agglomerations. Levers used to achieve sustainability include greening initiatives, regenerative infrastructure deployment and reconsidering stormwater management to promote reuse of greywater for reuse purposes.
Energy
Sustainable urban infrastructure development requires extensive expertise and resources, so its implementation has typically been carried out through public-private partnerships (PPPs). PPPs have proved particularly effective for waste management and sewage treatment plants but tend to be less frequently seen for urban transport systems or energy services.
Integration of natural areas into urban infrastructure is an integral component of sustainable urbanization, yet often presents the challenge of reconciling conservation and development needs. Converting natural landscapes into urban land also affects ecosystem services (ES), so planning and development strategies must take this into account when considering conversion projects.
Building with nature brings several direct benefits for cities, such as reduced disaster risks and climate change impacts, increased resilience, reduced energy costs and lower energy consumption costs. Many city governments are taking steps towards this end by using nature-inspired solutions – like turning tarmac or concrete-built spaces into green rain gardens or rooftop gardens or using creative financing models such as social impact bonds to finance such initiatives.
Transportation
As the majority of humanity now resides in urban areas, sustainable urban infrastructure development is essential to both global and local economic development. This involves building resilient cities; mitigating and adapting to climate change impacts; as well as providing access to water, energy, and transport resources.
Sustainable transportation solutions aim to decarbonize and increase energy efficiency. This involves replacing fossil-fueled vehicles with hybrid or electric versions, optimizing transportation networks’ routes, and introducing green public transit systems.
Cities with improved transportation options provide more opportunities for people to travel, reducing air and noise pollution, congestion, traffic accidents and waste production. Integrating green and blue space into city transport systems also offers numerous co-benefits for sustainability, livability and health – reducing heat-related energy losses, carbon emissions from built environments as well as supporting resilient natural ecosystems while protecting biodiversity. Furthermore, investing in nature-based infrastructure also creates jobs while supporting economic development in more vibrant, equitable cities.
Waste
Cities can foster environmentally responsible infrastructure by encouraging citizens to reduce energy use and waste production. One approach would be providing access to nature and walking/biking paths as well as encouraging eco-friendly public transportation solutions.
United States households generate over 50 trillion pounds of trash annually, yet only a fraction is recycled or reused. While traditionally industrial processes treated waste as an undesirable byproduct that released pollutants into the environment, newer approaches treat waste products as potential resources to be recovered into valuable materials for value addition.
Urban green infrastructure helps mitigate pollution caused by stormwater runoff by collecting rain where it falls, filtering it into the ground (replenish water supplies while returning moisture back into the atmosphere through evapotranspiration) or using it as landscape. While such strategies have their critics, as they reinforce a colonial legacy tied to species extinction and climate change.