Opportunities to Impact Total In-Use Vehicles:

1. Encourage/enforce less aggressive driving behavior
2. Increase vehicle occupancy on substantial fraction of trips
3. Reduce mileage driven per person per year
4. Use biomass-based fuels to substitute for petroleum-based fuels
5. More effective transportation system management
6. Increase public transportation utilization

Opportunities for Impact Through Improving New Vehicles:

1. Shift the vehicle performance/fuel economy trade-off towards lower fuel consumption
2. Improve vehicle maintenance, lubricants, tire pressure, reduce parasitic loads
3. Buy and use lighter weight “less big” vehicles
4. Implement more efficient engine, drive train, and vehicle technologies
5. Develop and implement use of hydrogen with fuel cell powered vehicles
6. Use electricity with advanced batteries to reduce petroleum consumption