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<br />n('\~~"3 <br />our _:.. 1... <br /> <br />c. Alternative Three <br /> <br />The envirorunental consequences which may be associated with the <br />implementation of this alternative would be essentially the same <br />as those described in the discussion of Alternative Two above. <br />There would, however, be less short-term pollution, especially <br />particulates, since no construction of lifts or trail clearing and <br />associated burning would occur in the back bowls. <br /> <br />8. HWg <br /> <br />a. Alternative One <br /> <br />This alternative would not create any new or additional noise <br />impacts on National Forest System land. Developnent of adjacent <br />private land which is expected to occur regardless of a Forest <br />Service decision will, however, raise noise levels as a result of <br />increased vehicular traffic and construction. <br /> <br />Studies (Freddy, 1980, Lyon, 1979, & Ward, 1984) indicate that big <br />game (deer and elk) are susceptible (alertness, displacement, <br />increased heart rate, etc.) to human disturbances (on foot, <br />snowmobile, logging activities, roads, public firewood gathering, <br />etc.). Due to the continual disturbance (either by noise or the <br />presence of people) on the private land sane elk may be displaced <br />or lost. Effects on private land will be less due to reduced <br />development with no ski area. <br /> <br />b. Alternatives Two and Three <br /> <br />By the year 2005, daily traffic volUllles of as many as 7,744 <br />vehicles can be expected to be generated with development. A peak <br />hour count of 1130 vehicles may occur. The results of the traffic <br />noise analysis is shown below. <br /> <br />The Leq value is the magnitude of noise which would be present if <br />all of the acoustical energy measured within a specified time <br />interval were surmned and equally re-distributed throughout the <br />measurement interval. The Leg value can be considered to be an <br />average sound level. Leq 67 dB(A) therefore is the "energy mean <br />noise level" equal to 67 decibels. <br /> <br />projected Traffic <br />Build Scenario <br />Year 2005 <br /> <br />Existing Traffic Noise - 40 mph <br />- 50 mph <br />Noise <br /> <br />Distance to Leq 67 db (A) <br />from centerline of U.S. 160 <br />less than 50 feet <br />less than 50 feet <br /> <br />- 30 mph <br />- 40 mph <br />- 50 mph <br /> <br />less than 50 feet <br />less than 50 feet <br />75 feet <br /> <br />189 <br />