Hammarby Sjöstad was designed as a comprehensive infrastructure project. The heating, transport, and waste collection systems were intended to work in conjunction to reduce their long term use of energy and resources. The project meets high environmental standards in comparison with similar developments internationally. Hammarby Sjöstad demonstrates how high environmental targets can be met through the use of a well-developed master plan, high levels of initial investment in infrastructure, and a focus on environmentally-friendly housing and a high quality living environment.The Hammarby Model consists on using resources in a cyclical loop, ensuring that the system is based on a life-cycle assessment and maximizing renewable resources use.