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aesthetic environment of the corridor and, therefore, are not necessary. This exemption is consistent with the corridor plan's existing exemption of architectural standards for industrial building facades that are not visible from roadways or residential areas. That building facade exemption is included in the proposed LDRs. B. Architectural exemption and increased landscaping standard for electrical substations (pp. 29 and 39): An architectural/building standards exemption for electrical substations and similar uses is proposed where buildings associated with such uses will be visually screened from adjacent properties and roadways. Such structures will be out of public view and in restricted areas. In addition, such structures are required to meet safety standards (such as electrical standards) that could conflict with the architectural standards. Therefore, the exemption is justified to allow such structures to be hidden from view and restricted from public access by requiring a higher landscaping standard to visually screen all aspects of the substation (including taller electrical equipment). This "pending ordinance" proposal was applied to the Vero Beach substation at 261' Street and 58' Avenue which was recently approved by the Board. Application of the proposed standards significantly increased perimeter landscaping in exchange for an architectural exemption for that project. C. Extension of the temporary use road buffer (p.29): The plan currently addresses the buffering of temporary uses from SR 60, but does not specifically address buffering such uses from other Thoroughfare Plan roads (e.g. 581 Avenue). Specifically extending the buffer requirement to all Thoroughfare Plan roads within the corridor is logical because the landscape regulations apply the same roadway buffer to the Thoroughfare Plan roads and SR 60. Thus, with the proposed amendments, all Thoroughfare Plan roads will be equally buffered from temporary uses as well as from "permanent" uses. D. Deeper roadway buffers for larger projects (p. 33): At its April 22, 1997 hearing, the Board of County Commissioners recognized that larger projects have a greater visual impact and a greater ability to provide a deeper buffer along SR 60 and Thoroughfare Plan roads. In keeping with the adopted buffer depth standards (10', 15', and 20'), the proposed amendment requires a greater buffer depth for projects on sites that have a greater depth from SR 60 and Thoroughfare Plan roads. The thresholds chosen correspond to site sizes staff has encountered in its review of various stand alone and "out parcel" projects, and are consistent with projects approved over the last 2 years. E. Exclusive access driveway buffer (p. 34): Exclusive access driveways (e.g. mall "ring road", major entrance driveways serving large projects) function similarly to local roads. Such driveways are already defined in the existing LDRs and are specifically regulated in the existing Chapter 952 traffic regulations. The proposed amendments would apply local road buffer (landscaping) requirements to exclusive access driveways, to provide consistent roadside landscaping between local roads and exclusive access driveways. F. Interior parldng area landscape standard (pp. 34 and 35): After considerable discussion at the February PSAC meetings, a proposal was devised to ensure that, generally, every bank of 10 parking spaces will be broken -up with at least one planted landscape area. Waivers to the devised formula could be granted by the Planning and Zoning Commission where tree preservation efforts would be better served by concentrating rather than dispersing green areas throughout a parking lot. May 4, 1998 11 rr p 378