Science & Technology
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What Should I Do About this Warning: "Warning: A Work File Failed. Calculations will be Retried. No data has been lost."?
See More Frequent Questions about MOVES and Related Models . This is just a warning message not an error message so there is nothing to fix. This is a internal timing issue when the MOVES worker tries to access a file and there is a lock on it. This lock…
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What is Vehicle Specific Power (VSP)?
See More Frequent Questions about MOVES and Related Models . It is an estimate of the power demand on the engine during driving. It is calculated using the second-by-second speed values in a driving schedule, along with information about the type of vehicle being operated. The VSP is used by…
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What is the Meaning of the MOVESScenarioID Field? What Conditions Must User-Defined MOVESScenarioIDs Meet?
See More Frequent Questions about MOVES and Related Models . The MOVESScenarioID is merely text that is used to label the output rows resulting from a MOVES rates run and is defined in the Scale Panel of the MOVES GUI. You can enter any text you like, as long as…
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Where Can I Find Default HPMSBaseYearVMT Values for a Specific County?
See More Frequent Questions about MOVES and Related Models . MOVES does calculate default values for VMT for each calendar year for each county. Since these values are calculated, they are not found in any table in the default database. If you wish to obtain the default estimates, you will…
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Why Doesn't my Output Vehicle Miles Traveled (VMT) Match my Input VMT?
See More Frequent Questions about MOVES and Related Models . This problem usually occurs when the run specification does not include all possible vehicle and fuel types. MOVES internally allocates the input VMT to each of the source types and fuel types and only reports the VMT for the fuel…
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How Can I Reduce the Time Needed to Run the Nonroad Emission Factor Post-Processing Scripts?
See More Frequent Questions about MOVES and Related Models . Very long run times are not unusual for Nonroad emission factor post-processing scripts, particularly with a large output database. To reduce script run time, we recommend doing the following: Reduce the size of your output database by choosing just the…
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Can MOVES Report Output in Terms of Fuel Consumption?
See More Frequent Questions about MOVES and Related Models . Although gallons of fuel consumed are not reported by MOVES, the factors used to convert total energy consumption (a MOVES reporting option) to gallons of fuel are contained in the FuelSubtype table (energy content, reported in kilojoules per gram of…
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Does MOVES Incorporate Anticipated Improvements in VOC Emission Factors Resulting from Improved Fuel Economy?
See More Frequent Questions about MOVES and Related Models . Changes in fuel consumption affect VOC emissions by reducing refueling vapor losses and spillage. Other emissions (such as sulfates) are also affected by fuel consumption. MOVES incorporates changes due to fuel economy requirements that were finalized as of the date…
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Why in my Nonroad Results do I Have a fuelTypeID not Listed in the FuelType Table?
See More Frequent Questions about MOVES and Related Models . The fuel types used by the nonroad part of MOVES is not located in the FuelType table. If you look in the NRFuelType table you will see that 23 is for nonroad diesel fuel and 24 is for marine diesel…
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What Pollutants are Included in “oxides of nitrogen” in MOVES?
See More Frequent Questions about MOVES and Related Models . The definition of NOx in MOVES (NO + NO2 + HONO) is different than the standard NOx definition of NOx (NO + NO2). This change has been made to correct the exhaust NOx emission in MOVES for potential interference with…
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Konecranes PLC —Tier 4F EcoLifting Hybrid System
EPA confirms verification request from Konecranes PLC regarding the EcoLifting Hybrid System (EcoLifting) replacing generators (Tier 0, 1, 2, 3) for non-road diesel engines on rubber tired gantry cranes (RTG), reducing emissions of criteria pollutants.
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Is There a Way to Model Emissions of a Single Vehicle on a Given Route in MOVES?
See More Frequent Questions about MOVES and Related Models . MOVES is designed to model fleet emissions, but the project scale in MOVES allows you to model a single average vehicle on a link (road segment). The project scale requires the user to import detailed data, including vehicle population. By…
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The EPA’s Ongoing Efforts to Reduce Nutrient Pollution
EPA’s Efforts to Reduce Nutrient Pollution - An overview of what the EPA is doing to combat the nitrogen and phosphorus pollution problems in the U.S.
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Small Communities, Big Challenges
Small Communities, Big Challenges Rural Environmental Public Health Needs Prize Competition. The Competition seeks to identify innovative approaches local governments have developed for working with rural communities on environmental public health.
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How does the Fuel Wizard Determine which Fuel Formulations to Modify?
See More Frequent Questions about MOVES and Related Models . The Fuel Wizard only works on fuel formulations that are in your county database (CDB) and it "edits" them to comply with the alterations you provide. If you wish to create a set of alternate fuels, you will need to…
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Transportation Conformity Training and Presentations
EPA's OTAQ has provided multiple conformity training sessions in the past to assist state and local governments in implementing conformity requirements. As training information is prepared for other venues, it will be posted on this page.
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EPA Flooded Homes Research Partnership
Partnership organizations that helped EPA develop the Flooded Homes website tools and resources.
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NIEHS/EPA Children's Centers 2014 Webinar Series: Risks to Children’s Health: Chemicals in Consumer Products
The webinar features presentations and interactive discussions including recent findings and new developments in children’s environmental health.
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8th Annual P3 Grant Recipients
EPA's P3 – People, Prosperity, and the Planet Program
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Continental Cement Company/Green America Recycling LLC Facility, Hannibal, Marion County, Missouri - Fact Sheet, August 2022
Public Comment Period for Draft Hazardous Waste Permit Modifications