§ 151.181  DYNAMIC DISPLAYS AND CHANGEABLE COPY SIGNS.
   Dynamic displays and changeable copy on signs are allowed subject to the following conditions:
   (A)   Dynamic displays and changeable copy signs are allowed only on monument and pylon signs for all uses in the B-1, I-1 and I-2 Districts only. Dynamic displays and changeable copy signs may occupy no more than 50% of the actual copy and graphic area. The remainder of the sign must not have the capability to have dynamic displays even if not used. Only 1, contiguous dynamic display or  changeable copy is allowed on a sign face.
   (B)   A dynamic display may not change or move more often than once every 3 seconds.
   (C)   Messages on dynamic displays may not be animated. Transitions between messages are permitted, but such transitions may only fade, scroll, travel or reveal, and the transition shall not exceed duration of 1 second.
   (D)   The images and messages displayed must be complete in themselves, without continuation in content to the next image or message or to any other sign.
   (E)   (1)   Every line of copy and graphics in a dynamic display must be as outlined below:
 
Road Speed Limit
Height of Copy and Graphics
25 to 34 MPH
7 inches
35 to 44 MPH
9 inches
45 to 54 MPH
12 inches
55 MPH or more
15 inches
 
      (2)   If there is insufficient room for copy and graphics of this size in the area allowed under division (E)(1) above, then no dynamic display is allowed.
   (F)   Dynamic displays must be designed and equipped to freeze the device in 1 position if a malfunction occurs. The displays must also be equipped with a means to immediately discontinue the display if it malfunctions, and the sign owner must immediately stop the dynamic display when notified by the city that it is not complying with the standards of this subchapter.
   (G)   Dynamic displays must comply with the brightness standards contained in § 151.182 below.
   (H)   Dynamic displays existing on October 3, 2007 must comply with the operational standards listed above. An existing dynamic display that does not meet the structural requirements in division (A) above may continue as a legally established non-conforming sign subject to § 151.192. An existing dynamic display that cannot meet the minimum size requirement in division (E) above must use the largest size possible for 1 line of copy to fit in the available space.
(Ord. 494, passed 9-25-2007; Am. Ord. 542, passed 4-23-2013)  Penalty, see § 151.999