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FIGURE 1 <br />FIGURE 2 <br />FIGURE 3 <br />FIGURE 4 <br />LIST OF FIGURES <br />RATED OUTPUT OF WARNING DEVICE <br />IN dB(C) AT 100 FT. (30 m) <br />MAP WITH CIRCLES CENTERED ON <br />SINGLE WARNING DEVICES' <br />MINIMUM MOUNTING HEIGHT OF A <br />TYPICAL WARNING DEVICE TO AVOID <br />RISK OF HEARING DAMAGE TO <br />PEDESTRIANS (FOR HORIZONTAL BEAM) <br />MINIMUM DISTANCE TO AVOID RISK OF <br />HEARING DAMAGE TO OCCUPANTS OF <br />ADJACENT BUILDINGS LOCATED IN <br />SOUND BEAM OF WARNING DEVICES <br />13 <br />