§ 27-736. Variances.

(a)

Generally. Applicants may request a variance from the dimensional and design requirements of this division pursuant to section 27-216.

(b)

Traffic safety considerations. In requesting a variance from the size or illumination requirements of this section, the applicant may provide and the board of zoning appeals may consider factors relating to the appropriate sign size based on posted vehicle travel speeds, viewer reaction time, detection, and legibility as described in the following formula:

A _sign = 3n/80 [(VRT)(MPH)/LI]

where:

A _sign = area of the sign

Fixed value: 40/60 ratio of letter to negative space

Variable values:

n = number of letters

VRT = Viewer Reaction Time (seconds)

MPH= miles per hour (travel speed)

LJ = Legibility Index

Application of this formula is described in Street Graphics and the Law, Fourth Edition (American Planning Association, PAS Report 580, August 2015), chapter 4, which document is hereby incorporated by reference and maintained in the offices of the planning director.

(Ord. No. O-35-16 , § 1, 6-30-2016)