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The transitional surfaces, shown on Toronto/Lester B. Pearson International Zoning plan No. 21-005 94-138, Sheets 13, 14, 20, 21, 22, 23, 30, 31, 32, 33, 40, 41, 42 and 43, dated July 31, 1995, are inclined planes rising at a ratio of 1 m measured vertically to 7 m measured horizontally at right angles to the centre line and projected centre line of each strip, extending upward and outward from the lateral limits of each strip and its approach surfaces to an intersection with the outer surface or with another transitional surface.
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