Activity-Based Modeling is at the core of how NSA Hub plans and evaluates transportation systems. ABMs simulate the full sequence of daily decisions people make — where to live, work, shop, and how to get there — capturing the realistic complexity of urban travel behavior in ways that conventional models cannot. The team's expertise runs deep: it includes academic pioneers who helped develop among the first trip-chaining models in the U.S. and led foundational ABM deployments across major regions including Los Angeles, San Francisco, and New York, with international applications in Europe and Asia. This combination of applied practice and foundational research means ABM is an integral part of the workflow — driving scenario testing, policy evaluation, and evidence-based planning across major projects.