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or ~and$cape architect to assist with the lay- <br /> <br />out and caicu[ation requirements, <br /> <br /> Brownsbur§, indiana's, on-site land- <br />scaping requirements are 'or§anized by land- <br />use type--resioendai or non-residential. <br />Depending ~n the use, requirements pro- <br />vided are for the number of shade <br />ornamental ~?ees, and shrubs to be distrib- <br />uted throushout the site. The requiremen(~ <br /> <br /> Residential dweilin~ dwei[in~ shoos required, <br /> dwelling be substituted. <br /> <br />the ordinance wanted a higher level of [and- <br />scapin§ than allowed on the site. It is possi- <br />ble that variance requests and limited staff to <br />process them may evefltuaity require a simpli- <br />fication of the ordinance. <br /> Buttering and $creening, Bufferin§ and <br />screening regulations generally require a buffer <br />yard around the perimeter ora property to <br />obscure it from neighboring uses. Appiicants <br /> can fulfill tree preser- <br /> ver/on requirements <br /> by allowing trees <br /> within the buffer,/ard <br /> to be counted toward <br /> the requirements. <br /> Traditionally, commu- <br /> nities asked for a <br /> standard 3s-foot <br /> Trees should be grouped buffer yard with one <br /> toRether to form a natural <br /> looking area tree and two shrubs <br /> per aver/3o lineal <br /> feet. 8ut the growin§ <br />complexib/of uses makes a standard buffer yard <br />difficult for wide application, so newer <br />approaches have been developed. <br /> A wideiy used format for buffer yard <br />requirements in ordinances today is the use <br />matrix for adjoining and proposed uses, <br /> <br />Greenwood, Indiana, planners dove sped a <br /> minimum buffer yard <br /> matrix (see Table 3, left) <br /> when growth conditions <br /> in the community <br /> chan§ed. This included a <br /> significant increase in <br /> residential subdivisions <br /> and commercial §rowth <br /> also§ major corridors. A <br /> buffer yard type table <br /> (see Table 3a, above <br /> right) accompanies the <br /> matrix. The proposed <br /> use and the adioining <br /> district determine a <br /> buffer yard totter. The <br /> buffer yard table type <br /> indicates the required <br /> width of the buffer yard <br /> and the landscape requirements for that <br /> yard, <br /> <br /> In Salisbury, North Carolina bufferyard <br />requirements are more complex, having <br />been developed on a point system with mul- <br /> <br />for residential subdivisions are calculated <br />based on the number of dwelling units. The <br />requirements for non-residential uses are <br />based on the square footage of tot area (see <br />Table 2, above). <br /> This approach is easier for staff to <br /> <br />administer, tends to fewer errors, nod is sim- <br /> <br /> two <br /> F~milv A None A 8 <br /> <br /> ~amiIv 8 A None <br /> <br />Low <br />Intensity ;3 B A None A C <br />Uee <br /> <br /> . ~ C ~ A None B <br />:.:;e <br /> <br />::,r.:::;:: O O 0 C 8 None <br /> <br />pier to enforce. One drawback with the re~u- <br />[ations is that non-residential requirements <br />are too excessive in terms of the number of <br />shrubs and trees required for industrial prop- <br />erties. The Brownsburg committee draftin§ <br /> <br />A ~ Feet ~ shade tte~ a~d 5 large shrubs <br />C 3o Feet t shede tree and ~S lar[e shrubs <br /> <br />tipliers for each buffer yard. There are six <br />[eveis of buffer yards, each representing a <br />separate zonin§ district; <br /> <br /> L~ve[ ~: Residential; single-family and <br /> <br /> two-family <br /> <br /> Level a: :leoidelTda[; mu[tir'ami[y <br /> Lave[ ~: Offh:a; ~nstitutionat and <br /> reIated classes <br /> Level ,~: Commercial; Iow ~nd medium <br /> intensity <br /> Leve[ 5: Crmmerciat; high ]n~ensRy <br /> Lava! -5: industrial <br /> <br /> 5alisbup/also developed a district-level <br />matrix to indicate how the buffer yards relate <br />to one another (see Table/4 below). Again, a <br />companion table (see Table qa, page 5) was <br />developed to dictate the requirements of the <br />p(anting yards. Once the relationship <br />between the exisdng, adjacent, and proposed <br />zoning district is determined (and the letter <br />designated) the companion table provides <br />regulation details. The table has a point sys- <br />tem for a variety of landscape types to allow <br /> <br />for flexibility in materials for the landscape <br />buffer. Otherwise, the city would make the <br />decision, The width of the buffer yard is <br />based on buffer yard type. Here, each linear <br />foot is calculated usin§ the relevant multip(ier <br />to get ~he total points required for the yard <br />type. Consequently, acombinationofshade <br />and ornamental trees and shrubs is used to <br />meet the requirement. There also is a mini- <br />mum tree requirement. <br /> <br />'~ 06 ZONING.'. ,. .... o4.o~ <br /> AMERICAN PLANNING ASSOCIATION I pogea <br /> <br /> <br />