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3/21/80 5050.4 2 Those which involve the movement of air and ground vehicles. Increased consumption of fuel by aircraft need only be examined if average ground movement or runup times are increased substantially without offsetting efficiencies in operational procedures or if the action includes a change in flight patterns, such as from noise abatement procedures, which adds noticeably to flight times. Ground vehicles' fuel consumption shall be examined only if the action would add appreciably to access time or if there would be a substantial change in movement patterns for on -airport service or other vehicles. (b) Use of natural resources other than for fuel need be examined only if the action involves a need for unusual materials or those in short supply. (c) For most airport actions, changes in energy or other natural resource consumption will not result in significant impacts. If the environmental assessment identifies problems with demands exceeding supplies, changes in aircraft or ground vehicle use which would greatly increase fuel consumption, or the proposed substantial use of natural resources in short supply, additional analysis will be required in an environmental impact statement per paragraph 85o. Otherwise, it may be assumed that impacts are not significant. (16) Light Emissions. (a) The sponsor shall consider the extent to which any lighting associated with an airport action will create an annoyance among people in the vicinity of the installation. The following information shall be included in the environmental assessment whenever the potential for annoyance exists: 1 Site location of lights or light systems. 2 A brief description of the light system as to its purpose, method of installation (pole or ground mounted), beam angle, intens- ity, color, flashing sequence, and other pertinent characteristics of the particular system and its use. 3 Measures to lessen any annoyance, such as shielding or angular adjustments (b) only in unusual circumstances, as for example when high intensity strobe lights would shine directly into people's homes, will the impact of light emissions be considered sufficient to warrant special study and a more detailed examination of alternatives in an environmental impact statement. Normally, it may be concluded that no significant impact would occur. Chap 5 Par 47 Page 55 "1