Vermont’s Transportation Resilience Planning Tool (TRPT) assesses the criticality of roadway links by measuring how much vehicle hours of travel (VHT) increases across the network when a link fails. This metric, and similar metrics used in other network resilience applications, are practical as a measure of mobility, but they obscure the question that matters most to communities and planners: which places lose their ability to reach needed destinations? Accessibility — the ease with which people can reach destinations such as jobs, healthcare, grocery stores, and emergency services — is the true purpose of transportation infrastructure, and a road network criticality measure grounded in accessibility can reveal both which links are critical and which communities bear the burden when those links fail. This project will develop an Accessibility Criticality Index (ACI) for Vermont's statewide roadway network and evaluate it against the existing mobility-oriented Network Criticality Index (NCI) used in Vermont's TRPT. The accessibility metric will be developed using publicly available destination data and the Vermont statewide Travel Demand Model (VTDM). The core research questions are: (1) How do link criticality rankings differ when measured using accessibility rather than mobility, and what does that reveal about the current TRPT's blind spots, and (2) what Vermont towns and census tracts stand to see the greatest access loss when links fail, and how does community vulnerability differ when measured using accessibility rather than mobility? Findings will directly inform a proposed Phase 2 project to integrate the ACI into the TRPT web application.