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Traffic Volume and Classification

A collection of historic traffic count data and guidelines for how to collect new data for MassDOT projects.

MassDOT publishes traffic count data on an interactive map. If you'd like more help with how to interact within this map, you can read our quick help guide for further instructions.

A Guidance on Traffic Count Data document has been developed by MassDOT to assist you with how to collect new count information.