Mobile Sources
ERG is at the forefront of advancing clean and efficient technologies, fuels, and transportation control initiatives. We are internationally known for emission factor modeling and inventory development/forecasting for criteria pollutants, particulate matter (PM), toxics, and greenhouse gases (GHGs). We also have developed a range of emission control programs and technologies, including inspection and maintenance (I/M), accelerated vehicle retirement, and retrofit program evaluations for on- and off-road sources. Our mobile source experts work closely with our economists, policy experts, software engineers, communications specialists, database designers, and others to bring a broad range of integrated services to our clients.
Data Collection and Analysis
- Operator surveys
- Expert interviews
- Vehicle emission testing
- Remote sensing device (RSD) data collection
- Portable emissions measurement system/portable activity monitoring system instrumentation
- Statistical analysis
Modeling and Emission Factor Development
- MOBILE6/EMFAC
- MOVES development
- NONROAD/OFFROAD
- RSD program effectiveness
- Neural network modeling
- Statistical analysis of emission data
Inspection/Maintenance Programs
- I/M program design and evaluation
- Compliance assessments
- Enforcement audits
- Inspection and repair effectiveness
- Acceptance testing
Control Strategy Evaluation
- Alternative fuels analysis
- RSD/on-board diagnostic implementation
- Engine modification and retrofit effectiveness
- Analysis of new and proposed emission standards
Non-Road and Diesel Expertise
- Non-road controls/technology options
- Heavy-duty off-road emission testing
- Fleet-specific surveys and control evaluations
- Specialized emission factors
Emission Inventory Development
- On-road and off-road
- Air, rail, commercial marine
- Criteria, PM, toxics, GHGs
- Trends forecasting
Economic and Regulatory Support
- Controls/technology cost-effectiveness
- Voluntary measurement assessments
- Implementation and compliance evaluations
- Financial impact assessments
Mobile Source Software Products
