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Abstract
The Transportation Sustainability Tracking Tool was developed by the University of Vermont Transportation Research Center (TRC) for the Chittenden County Regional Planning Commission to support local monitoring of transportation and climate policy goals. The tool provides an interactive, web‑based platform that visualizes transportation performance metrics—including vehicle miles travelled (VMT), tailpipe greenhouse gas emissions, fuel consumption, and electricity consumption—derived from a longitudinal dataset of light‑duty vehicles registered at residential addresses in Chittenden County. These metrics are calculated using cleaned and merged Vermont DMV registration and inspection records, geocoded address information, vehicle characteristics decoded from VINs, and fuel economy estimates from the U.S. EPA. The system enables users to explore trends across multiple spatial scales and years via real‑time data querying within an R‑shiny dashboard. While the dataset offers unique, spatially detailed insights into household vehicle use, the report outlines important limitations, including the exclusion of commercial, government, and through‑traffic travel. The tool’s design emphasizes transparency, repeatability, and annual data updates, supporting planners and municipalities in evaluating progress toward sustainable transportation outcomes in Chittenden County.
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2025-04
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Final Report.pdf
Adobe PDF, 752.19 KB