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Environmental Measures <br />PM 9: Average .Fuel Economy Miles per Gallon <br />This measure provides an estimate of fuel use under the three scenarios. The objective is to <br />increase fuel economy. Fuel economy is directly related to levels of congestion. Higher levels of <br />g <br />congestion result in more fuel use and lower fuel economy. The Financially Constrained <br />TransPlan's lower fuel economy is a result of increased congestion over existing conditions. <br />However, the fuel economy achieved by the Financially Constrained TransPlan is higher than <br />that achieved under the trend condition. <br />.PM 10: Vehicle Emissions (Annual Tons of Carbon Monoxide <br />Vehicle emissions is a measure of plan air quality impact. The Eugene - Springfield area is <br />required to meet National Ambient Air. Quality Standards for various pollutants. Of rim <br />� primary <br />concern to the transportation system are the standards for carbon monoxide. The region is <br />currently in compliance with the standards for this pollutant. The region will continue to be in <br />compliance with the carbon monoxide standard in the future. Vehicle fleet turnover and stricter <br />emission controls on newer vehicles are factors that contribute to lower emissions in future <br />scenarios. <br />Percentage Change in Environmental Measures <br />(% change from 1995) <br />Percentage Change <br />20% -toga 00/0 10% 20% 30% 40% 50% <br />Population <br />Employment <br />Avg Fuel Efficiency (VMTIGal.) <br />CO Emissions (weekday Tons) <br />� 2 2 Trends 0 2%Winancially Constrained TransPlan Scenario <br />TransPlan July 2042 <br />Chapter 4, Page 1 <br />