The following signs are prohibited within all districts.
- Any sign which the Transportation Director determines obstructs the view of bicyclists or motorists using any street, private driveway, approach to any street intersection or which interferes with the effectiveness of or obscures any traffic sign, device or signal.
- Illuminated, highly reflective signs or spotlights which the Transportation Director determines hampers the vision of motorists or bicyclists.
- Signs, lights, rotating disks, words and other devices which resemble traffic signals, traffic signs or emergency vehicle lights.
- Signs, lights, rotating disks, words and other devices not erected by public authority which may be erroneously construed as governmental signs or emergency warning signs.
- Any sign which interferes with free passage from or obstructs any fire escape, downspout, window, door, stairways, ladder or opening intended as a means of ingress or egress or providing light or air.
- Any sign placed on any curb, sidewalk, post pole, hydrant, bridge, tree or other surface located on, over or across any public street, right-of-way, property or thoroughfare, unless authorized by the City Council.
- Flashing signs, travelling lights or signs animated by lights or changing degrees of intensity, except signs in public rights-of-way, and DX digital signs as specifically provided in Sec. 7.3.13.N.
- Signs that mechanically move, except signs on public rights-of-way.
- Roof signs.
- The tacking, posting or otherwise affixing of signs of a miscellaneous character visible from a public right-of-way located on the outside walls of buildings, barns, sheds, trees, poles, fences or other structures provided unit numbers, mailbox and paper tube identification signs that do not exceed 1 square foot in area and signs which warn the public against danger shall be allowed.
- Any message, copy or announcement, which uses a series of 2 or more signs placed in a line parallel to a street, highway or expressway carrying a single message or copy.
- Any sign which pertains to a business, profession, commodity or service which is vacant, unoccupied or discontinued for a period of 1 year or more; any part of a sign which is unused for a period of 1 year or more; or any sign which pertains to an event or purpose which no longer applies shall be deemed abandoned. An abandoned sign is prohibited and shall be removed by the owner of the sign or the owner or tenant of the premise.
- Signs attached to, painted on, or otherwise positioned (whether exterior or interior) in or on an inoperable or unlicensed vehicle (motorized or nonmotorized) located in view of the right-of-way.
- Signs attached to, painted on, or otherwise positioned in or on a licensed vehicle that is located in view of the street right-of-way when in a location or for a period of time that indicates that the use of the vehicle is for displaying the sign to passing motorists or pedestrians, except that such signs are allowed on a temporary basis in association with a temporary event permit.
- Any sign unlawfully erected or maintained.