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The approach surfaces, shown on Department of Public Works Trenton Airport Zoning Plan No. 12-011 84-33, dated May 5, 1988, are imaginary surfaces that abut each end of the strips associated with runways 06-24 and 13-31 and that are more particularly described as follows:
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(a) a surface that abuts the end of the strip associated with runway 06 and consists of an inclined plane having a ratio of 1 m measured vertically to 60 m measured horizontally rising to an intersection with the outer surface; thence the approach surface slopes upward at a ratio of 1 m measured vertically to 50 m measured horizontally and rises to an imaginary horizontal line drawn at right angles to the projected centre line of the strip and at a distance of 15 000 m measured horizontally from the end of the strip; the outer ends of the imaginary horizontal line being 2 400 m from the projected centre line; the imaginary horizontal line being 291 m measured vertically above the assigned elevation at the end of the strip;
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(b) a surface that abuts the end of the strip associated with runway 24 and consists of an inclined plane having a ratio of 1 m measured vertically to 60 m measured horizontally rising to an intersection with the outer surface; thence the approach surface slopes upward at a ratio of 1 m measured vertically to 50 m measured horizontally rising to an imaginary horizontal line drawn at right angles to the projected centre line of the strip and at a distance of 15 000 m measured horizontally from the end of the strip; the outer ends of the imaginary horizontal line being 2 400 m from the projected centre line; the imaginary horizontal line being 291.4 m measured vertically above the assigned elevation at the end of the strip;
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(c) a surface that abuts the end of the strip associated with runway 13 and consists of an inclined plane having a ratio of 1 m measured vertically to 40 m measured horizontally rising to an imaginary horizontal line drawn at right angles to the projected centre line of the strip and at a distance of 1 800 m measured horizontally from the end of the strip; the outer ends of the imaginary horizontal line being 345 m from the projected centre line; the imaginary horizontal line being 45 m measured vertically above the assigned elevation at the end of the strip; and
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(d) a surface that abuts the end of the strip associated with runway 31 and consists of an inclined plane having a ratio of 1 m measured vertically to 40 m measured horizontally rising to an imaginary horizontal line drawn at right angles to the projected centre line of the strip and at a distance of 1 880 m measured horizontally from the end of the strip; the outer ends of the imaginary horizontal line being 357 m from the projected centre line; the imaginary horizontal line being 47 m measured vertically above the assigned elevation at the end of the strip.
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