Michigan Laws 259.482d – Extension of transitional surface
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Terms Used In Michigan Laws 259.482d
- Approach surface: means an imaginary plane longitudinally centered on a runway's centerline extended, and extending outward and upward from each end of that runway's primary surface, which plane has the specifications described in section 2c. See Michigan Laws 259.481
- Horizontal surface: means an imaginary horizontal plane 150 feet above the elevation established for an airport, the perimeter of which plane is constructed as described in section 2e. See Michigan Laws 259.481
- Runway: means the portion of an airport designated as either of the following:
(i) An area used for the landing or takeoff of aircraft. See Michigan Laws 259.481Transitional surface: means an imaginary plane perpendicular to a runway centerline and to that centerline extended through the runway's primary surface and approach surface, which plane extends outward and upward from each side of the runway's primary surface and approach surface at a slope of 7 to 1 for the distances described in section 2d. See Michigan Laws 259.481
(1) Except as provided in subsection (2), a runway‘s transitional surface extends to the intersection of the transitional surface with the horizontal surface.
(2) For a runway that has a precision instrument approach, the transitional surface beginning at the side of a runway’s approach surface extends for 5,000 feet measured horizontally from the side of the approach surface.