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Note: This document or portion of document references a state or local requirement that is NOT required by the 2010 ADA Standards.

11B-703.8.4 Character height.

The uppercase letter “I” shall be used to determine the allowable height of all low resolution VMS characters of a font. Viewing distance shall be measured as the horizontal distance between the character and an obstruction preventing further approach towards the sign. The uppercase letter “I” of the font shall have a minimum height complying with Table 11B-703.8.4.

Exception: In assembly seating where the maximum viewing distance is 100 feet (30.5 m) or greater, the height of the uppercase “I” of low resolution VMS fonts shall be permitted to be 1 inch (25 mm) for every 30 feet (9144 mm) of viewing distance, provided the character height is 8 inches (203 mm) minimum. Viewing distance shall be measured as the horizontal distance between the character and where someone is expected to view the sign.

TABLE 11B-703.8.4 LOW RESOLUTION VMS CHARACTER HEIGHT

HEIGHT ABOVE FLOOR TO BASELINE OF CHARACTER HORIZONTAL VIEWING DISTANCE MINIMUM CHARACTER HEIGHT
40 inches (1016 mm) to less than or equal to 70 inches (1778 mm) Less than 10 feet (3048 mm) 2 inches (51 mm)
  10 feet (3048 mm) and greater 2 inches (51 mm), plus 1/5 inch (5.1 mm) per foot (305 mm) of viewing distance above 10 feet (3048 mm)
Greater than 70 inches (1778 mm) to less than or equal to 120 inches (3048 mm) Less than 15 feet (4572 mm) 3 inches (76 mm)
  15 feet (4572 mm) and greater 3 inches (76 mm), plus 1/5 inch (5.1 mm) per foot (305 mm) of viewing distance above 15 feet (4572 mm)
Greater than 120 inches (3048 mm) Less than 20 feet (6096 mm) 4 inches (102 mm)
  20 feet (6096 mm) and greater 4 inches (102 mm), plus 1/5 inch (5.1 mm) per foot (305 mm) of viewing distance above 20 feet (6096 mm)

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