The modeling lexicon breaks down each metric by name, and provides both the model type used to create it and a definition description for full explanation. Designed as a quick-reference chart, the lexicon provides important information and clarification across all the different VMT metrics, assisting the user in effectively navigating VMT calculations of all types.
Using Our Lexicon Reference
We invite you to explore our VMT Modeling Lexicon, and we are open to comments and input for enhancements to it as well. The lexicon is intended as a helpful reference for unpacking the complexities of VMT analysis and as a road map for accurate calculations.
Are you interested in learning more about VMT metrics, modeling, or California Senate Bill 743 implementation and planning?
share this article
Explore More
Prioritizing People in Multimodal Design
Discover how one city is redesigning their streets to make experiencing destinations safer and more enjoyable, and how their process and design typology can be adapted to streets across the US.
Quantifying VMT Reduction
How can transportation agencies reduce overall vehicle miles traveled and still generate revenue? In a recent study, we evaluated the impact of making transit free of charge compared to implementing a VMT tax and whether the costs for travelers is equitable.
Achieving Freight Greenhouse Gas Goals
Available guidance for agencies to gather an accurate picture of current freight activity is limited. Check out how this community defined their baseline in four steps to be able to evaluate freight zero emission zones as a strategy for meeting new climate and environmental policy goals.



