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28 <br />3. Chart 1 -13 exhibits how the sliding scale applies to 12 -lot subdivisions where the maximum <br />allowable density is one dwelling unit per two acres. (The maximum number of lots <br />permitted in a subdivision using private roads is twelve.) <br />Table used to produce Chart 1 -13 <br />A <br />B <br />C <br />C = 12 * B <br />(C/43560) <br />D <br />D = A *E <br />(D/43560) <br />E <br />E = C /(1 -A) <br />(E/43560) <br />% open <br />space <br />Min. <br />Lot size <br />(sq. ft.) <br />Lots <br />(sq. ft.) <br />Lots <br />(acres) <br />Open <br />Space <br />Open <br />Space <br />(acres) <br />Total <br />(sq. ft.) <br />Total <br />(acres) <br />33 <br />40 <br />45 <br />50 <br />55 <br />130,680 <br />94,807 <br />69,184 <br />43,560 <br />40,000 <br />1,568,160 <br />1,137,600 <br />830 ' 1601 <br />5212,7201 <br />480,000 <br />36.00 <br />26.12 <br />19.06 <br />12.001 <br />11.02 <br />772,377 <br />758,400 <br />679,222 <br />522,720 <br />586,667 <br />17.73 <br />17.41 <br />15.59 <br />12.00 <br />� 13.47 <br />2,340,537 <br />1,896,000 <br />1,509,382 <br />1,045,440 <br />1,066,667 <br />53.73 <br />43.53 <br />34.65 <br />24.00 <br />24.49 <br />4. Chart 2 -13 exhibits how. the sliding scale applies to a 24 -acre tract of land. The minimum <br />amount of land required for a 12 -lot subdivision, using the sliding scale, is the acreage <br />required for 1 -acre lots with 50% open space (24 acres). Application of the sliding scale <br />(for a subdivision with 1 -acre lots) to a tract of land larger than 24 acres would create a <br />subdivision having either more than twelve lots or.greater than 50% open space and would <br />not be a true comparison of the given options. <br />Table used to produce Chart 2 -13. <br />A <br />7B <br />C <br />D <br />E <br />F <br />G <br />H <br />C= [(1- A) *D] /B <br />D= C <br />Rounded <br />down to <br />whole no. <br />F= <br />E(43,560 <br />sq.ft. /acre) <br />G= <br />(A *E) <br />H= (B *D) <br />143,560 <br />sq.ft. /acre <br />% <br />Open <br />Space <br />Minimum lot <br />size <br />(sq. ft.) ' <br />Number of Lots <br />No. of Lots <br />Total <br />acres <br />Total <br />Area <br />(sq. ft.) <br />Open <br />space <br />(acres) <br />Lots <br />(acres) <br />0.33 <br />0.40 <br />0.45 <br />0.50 <br />0.55 <br />130,680 <br />94,800 <br />69,180 <br />43,560 <br />40,000 <br />5.36 <br />6.62 <br />8.31 <br />12.00 <br />11.76 <br />51 <br />6 <br />8 <br />12 <br />11 <br />24.00 <br />24.00 <br />24.00 <br />24.00 <br />24.00 <br />1,045,440 <br />1, 045,440 <br />1, 045,440 <br />1,045,440 <br />1, 045,440 <br />7.92 <br />9.60 <br />10.80 <br />12.00 <br />12.96 <br />.40 <br />E12.00 .08 <br />.20 <br />11.04 <br />