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CMAQ Emissions Calculator Toolkit

Tools to calculate and estimate air quality benefits for CMAQ projects.

Thank you for visiting the CMAQ Emissions Calculator Toolkit

The CMAQ Toolkit offers a collection of tools to help calculate emission reductions for various transportation projects. These tools are designed to support project sponsors in estimating air quality benefits and fulfilling reporting requirements for CMAQ-funded initiatives. Click here to visit the FHWA CMAQ Toolkit homepage
Links to each tool are provided below.

Adaptive Traffic Control Systems (ATCS) Alternative Fuel Vehicles and Infrastructure Bicycle, Pedestrian, and Shared Micromobility Carpooling and Vanpooling Congestion Reduction and Traffic Flow Improvements Construction and Intermodal Equipment Diesel Idle Reduction Strategies Diesel Truck and Engine Retrofit & Replacement Dust Mitigation Electronic Open-Road Tolling (EORT) Freight Modal Shift Locomotive & Marine Engine Retrofit and Replacement Tool Managed Lanes Telework Tool Transit Bus Upgrades & System Improvements Transit Bus Service and Fleet Expansion Travel Advisories