Sustainable development is conceptually defined and established for physical urban infrastructure development. The concept of sustainable development is now emphasizing on environmental, economical and social aspect. Enhancement of sustainability especially in urban underground infrastructure development aims to remediate various disturbances evidently caused from the development process and minimize long term negative impacts affecting prosperity of future generations.The main objective of this book is to develop and implement a modeling framework for enhancing sustainability to urban underground infrastructure. The modeling framework is named for Sustainability Assessment Model (SAM).The SAM development process focuses on identifying complex inter-relationships of sustainability aspects and indicators, utilizing adequate assessment methods, and providing multi-criteria decision making process (MCDM) for prioritization of the most sustainable alternative. The SAM can be directly applied to real project development regardless of size and type. This book provides a case study for the model applicability and verification of the SAM.