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Chapter 916: Signs <br /> Page 916-3 <br />e. Portable signs (except in Section 916.030C.5.a of this Chapter) <br />f. Signs which are attached in any manner to trees, fences, utility poles, vehicles <br />which are parked or stored in a location so as to constitute an advertising display <br />for more than 24 hours, or any other such display, except for those signs found <br />on fences (inside) of baseball parks. <br />g. No sign shall display any moving parts, nor shall it be illuminated with any <br />flashing, fading, dissolving, blinking, or intermittent lights, nor shall it be <br />animated. Exempted are time and temperature information and barber poles. All <br />displays shall be shielded to prevent any light to be directed at oncoming traffic <br />in such brilliance as to impair the vision of any driver. No device shall be <br />illuminated in such a manner as to interfere with or obscure an official traffic <br />sign or signal. <br />h. Roof signs erected after the effective date of this Chapter. <br />i. Any temporary off-premise sign, except as expressly allowed by this Chapter. <br />916.030 General Provisions <br />1.All signs shall comply with maintenance sections of the Minnesota State Building <br />Code as may be amended. <br />2.When electrical signs are installed, the installation shall be subject to the Minnesota <br />State Building Code as may be amended. <br />3.Regulations for Dynamic Signs. Based on studies related to the use of dynamic sign <br />displays and driver distraction, the City finds that dynamic signs, as defined by the <br />zoning Chapter, have a unique potential to create driver distraction, a major cause of <br />traffic crashes. As a result, the City has adopted special regulations that relate to such <br />signs. These regulations shall apply to all proposed dynamic signage in the City, <br />whether new or existing, conforming or non-conforming at the time of adoption of this <br />Chapter. <br />a.No dynamic sign shall have lettering smaller than the Letter Height listed in Table <br />916-1. <br />b.Dynamic signs shall have messages and static displays that change instantaneously, <br />and include an eight-second hold time on images, do not fade, dissolve, blink, or <br />appear to simulate motion in any way. Such signs may change by turning off for a <br />period of at least 10 minutes between displays. <br />c.Dynamic signs shall not be permitted in any Residential zoning district and shall <br />have a buffer of 50 feet from any residential district. All dynamic signs shall be <br />arranged such that light is deflected away from any adjoining residential area. <br />d.No dynamic display shall change more often than the Duration of Display shown in <br />Figure 916-4, except time and temperature displays which may change once every <br />three seconds. <br />Table 916-1 <br />Dynamic Sign Regulations <br />I-694, I-35, TH 36 Other Roadways <br />Letter Height Ten (10) inches Twelve (12) <br />inches <br />Six (6) inches <br />Duration of Display Ten (10) minutes Ten (10) seconds