^FOOTNOTES

¹ The urban services boundary is defined in Chapter 8, Section 8.3.

² The 100-year floodplain defines the elevation that floodwaters would reach in a storm event that has a 1-in-100 chance of occurring in any given year.

³ "Buildout" refers to the point at which the entire Land Use Plan Study Area has finally been developed.

⁴ LDN, also known as DNL or Yearly Average Day-Night Sound Level, is an exposure measure that predicts the effects on a population of the long-term exposure to environmental noise, expressed in decibels. It is adjusted to take into account the level of annoyance experienced by individuals exposed to noise during evening hours. Levels above 55 LDN are typically noticeable and potentially annoying. Levels of 60 LDN are usually disturbing in a residential environment. Levels of 65 LDN or higher are patently inappropriate for residential development, representing high aircraft noise levels.

⁵"Buildout" refers to the point at which the entire Land Use Plan Study Area has finally been developed.

⁶ There is also a limited amount of perimunicipal area at the northwest quadrant of the I-40 and N. Harrison Avenue interchange. However, a third of that area is part of RDU Airport, and the remainder i a mining operation unsuitable for future development for many years to come, and so that area is ignored in this Chapter.

⁷ The unserved area is that portion of Chatham Co. designated as Very Low Density Residential on the Land Use Plan Map. Areas outside the urban services boundary would not be provided with municipal water or sewer.

⁸ Does not include any municipal areas in Chatham County.

⁹ Includes Cary municipal areas within Chatham County.

¹⁰ This is the total acreage in the entire Plan Study Area except for the "Chatham Study Area, unserved" and the "Upper Middle Creek Study Area, unserved or cluster."

¹¹ Does not include any municipal area in Chatham County.

¹² Does not include any municipal area in Chatham County.

¹³ Land use data is not available for Chatham County. However, since the study area is largely vacant or rural, the total acreage has been assigned to the vacant category. Figure includes Cary municipal areas in Chatham County.

¹⁴ Land use data is not available for Chatham County. However, since the study area is largely vacant or rural, the total acreage has been assigned to the vacant category.

¹⁵ Defined as 8 or more dwellings per acre for this analysis, to conform with limitations in the source data.

¹⁶ Defined as 3-8 dwellings per acre for this analysis, to conform with limitations in the source data.

¹⁷ Defined as 1-3 dwellings per acre for this analysis, to conform with limitations in the source data.

¹⁸ Defined as large-lot residential subdivisions with lot sizes of 1-5 acres, conforming to definitions in the source data.

¹⁹ Defined as single-family rural residential lots of 5 acres or more, conforming to definitions in the source data.

²⁰ Total of all land use categories shown in the table, not including land in public street and railroad rights-of-way.

²¹ Total of all land use categories shown in the table, plus the amount in public street and railroad rights-of-way.

²² This is the percentage of gross land area in public rights-of-way (streets and railroad).

²³ Does not include any areas in Chatham County.

²⁴ Rights of Way assumed to be 10% of total land area.

²⁵ These are typical dwelling and population counts for neighborhoods which consist primarily of single-family detached housing, on typical quarter-acre lots. A neighborhood may have considerably more housing and population if it instead contains a sizable proportion of multifamily and higher-density housing.

²⁶ In this chapter, secondary roads refer to most non-arterial roads, except for driveway access roads and culs-de-sacs. The terms major or minor collector are not used because they imply a low-connectivity, conventional roadway system, and tend to have rigid functional definitions.

²⁷ The wide range possible in dwelling and population counts occurs due to the range in dwelling and population counts that is possible in each of a community’s neighborhoods. A community made up of four low-density neighborhoods may have only 3,000 homes, while a community made up of three high-density neighborhoods could have 6,000 or more homes.

²⁸ The recommended spacing is based not only on current development literature, but also generally reflects the existing pattern of shopping center spacing within Cary today. For all activity center criteria, the indicated minimum spacings from other activity centers also refers to spacing from other shopping centers of that size, whether or not they’re in activity centers.

²⁹ The maximum distance limit may be increased for activity centers developed as a traditional or neo-traditional development.

³⁰ The combined focus+support area may exceed the high end of this range, if the institutional, public space, or support area acreages exceeded the ranges given in this table, under the guidelines given in the table’s footnotes.

³¹ The support area may be larger than this, but should not be so large that over 30-50% of the neighborhood’s entire housing stock is in multifamily or attached housing, or that the general locational criteria for high- and medium-density housing, given in the preceding table, is diregarded.

³² The presence of institutional uses can cause the focus area to exceed the suggested maximum acreage.

³³ Vertical mixing of office with residential or commercial uses can cause a portion of this area to be absorbed in the commercial and residential acreages.

³⁴ The presence of larger institutional uses, such as schools or very large churches, may cause the total institutional acreage to exceed the suggested range.

³⁵ Public recreational acreage may be significantly larger if a neighborhood park or green is incorporated into the activity center. The public space figures given indicate a minimal acreage range.

³⁶ The institutional range is very broad because the institutional uses integrated into a neighborhood focus area could range from a single small-sized church or daycare, up to an elementary school. If a school enters the picture, the range can exceed the upper limit cited.

³⁷ Throughout this Plan, the given residential densities are "gross densities" that are based on the full land area of the residential development, including roads, open space, etc.

³⁸ The intent with the focus area is to bring together, in close physical and pedestrian-friendly proximity, all the commercial, service, office, and institutional uses which support the day-to-day activities and needs of a neighborhood’s citizens. This would be defeated if the focus area were split across quadrants.

³⁹ These uses are in addition to those listed in Subsection 6.2.2 for neighborhood activity centers.

⁴⁰ The maximum distance limit may be increased for activity centers developed as a traditional or neo-traditional development.

⁴¹ The combined focus+support area may exceed the high end of this range, if the institutional, public space, or support area acreages exceeded the ranges given in this table, under the guidelines given in the table’s footnotes.

⁴² The support area may be larger than this, but should not be so large that over 30-50% of the community’s entire housing stock is in multifamily or attached housing, or that the general locational criteria for high- and medium-density housing, given in the preceding table, is diregarded.

⁴³ The presence of institutional uses can cause the focus area to exceed the suggested maximum acreage.

⁴⁴ Vertical mixing of offices over commercial uses can cause a portion of this area to be subsumed in the commercial acreages.

⁴⁵ The presence of larger institutional uses, such as schools or very large churches, may cause the total institutional acreage to exceed the suggested range.

⁴⁶ Public recreational acreage may be significantly larger if a community or neighborhood park or green is incorporated into the activity center. The public space figures given indicate a minimal suggested acreage range.

⁴⁷ The institutional range is very broad because the institutional uses integrated into a community focus area could range from a single medium-sized church or daycare, up to a community library, recreation center, or even an elementary or middle school. If schools enter the picture, the range can exceed the upper limit cited.

⁴⁸ These uses are in addition to those listed in Subsections 6.2.2 and 6.2.3 for neighborhood and community activity centers.

⁴⁹ The maximum distance limit may be increased for activity centers developed as a traditional or neo-traditional development.

⁵⁰ Vertical mixing of office uses over commercial uses can cause a portion of this area to be subsumed in the commercial acreages.

⁵¹ The presence of larger institutional uses, such as schools or very large churches, may cause the total institutional acreage to exceed the suggested range.

⁵² Vertical mixing of residential uses over commercial, institutional, and office uses can cause a portion of this area to be subsumed in the commercial and office/institutional acreages.

⁵³ The institutional range is very broad because the institutional uses integrated into a regional focus area could range from a regional library, up to and including a high school or community college. If schools enter the picture, the range can exceed the upper limit cited.

⁵⁴ Larger Office/Industrial Parks may be possible, but would need to include a mix of housing as well, in order to provide homes near to where people work.

⁵⁵ The urban services boundary is defined in Chapter 8, Section 8.3.

⁵⁶ Subject to density range constraint.

⁵⁷ Lot sizes may be lower if developed under cluster guidelines.

⁵⁸ Sensitive designs which tuck parking under or to the rear of multifamily units may make higher densities feasible, without compromising the density "feel" intended for the particular activity center.

⁵⁹ Section 6.5.1 discusses appropriate TND densities in various locations within the Plan’s Study Area.

⁶⁰ The specific maximum TND density that would be appropriate in a given area will depend on the transportation, environmental, and infrastructure impacts that would be expected.

⁶¹ Not all conservation corridors are necessarily shown on the Land Use Plan Map, since a complete mapping of perennial streams was not available at time of publication.

⁶² Site topography may make taller buildings possible in some cases without compromising the neighborhood village feel intended for the neighborhood activity center. The goal is to maintain a village-like neighborhood feel, to achieve compatibility with the surrounding neighborhood, and to protect and preserve neighborhood views.

⁶³ Site topography may make taller buildings possible in some cases without compromising the community village feel intended for the community activity center. The goal is to maintain a village-like feel, to achieve compatibility with the surrounding neighborhoods, and to protect and preserve neighborhood views.

⁶⁴ The phrase "relatively close relation" does not imply a specific maximum distance from the roadway, and does not necessarily preclude having some parking between the fronting buildings and the street. The presence of a row or two of parking between such buildings and the street and sidewalk would not necessarily prevent a building from effectively defining the street and giving form to an avenue’s pedestrian realm.

⁶⁵ In this chapter, the term "secondary road" is used to refer to any non-arterial roadway except for driveway access roads and culs-de-sac.

⁶⁶ The term "grid" is used in a conceptual sense only, to indicate a roadway network consisting of roads that roughly run east-west and north-south. This does not mean there might not also be diagonal roads, ring roads, or that the roads may meander in a non-linear fashion, following the natural terrain.

⁶⁷ A strict uniform alignment/setback of buildings is not intended; slight variations in setback and building articulation is necessary in order to create an interesting and dynamic streetscape.

⁶⁸ See Chapter 3, Section 6 for an explanation of LDN.