This book provides diversification-based methodologies to analyze and optimize large-scale infrastructure systems investments. It classifies and explores several metrics of diversification and integrates them with other performance objectives in a multiobjective combinatorial optimization. Additionally, the book tests the diversification metrics and the related methodologies in a case study of hundreds of millions of dollars of transportation infrastructure investments. The book shows that integrating the metrics of diversification can be useful to refine among the Pareto-optimal...