14.3.1 Dedication of right-of-way. Right-of-way for public streets shall be dedicated to the town pursuant to G.S. Ch. 160A, Art. 19, Part 2 and other applicable state laws. When dedication cannot be required, any future street right-of-way indicated on adopted thoroughfare plans or collector street plans shall be shown on the plat.
14.3.2 Conformance with thoroughfare plans and collector street plans. The location and design of streets shall be in conformance with applicable thoroughfare plans and collector street plans. Where conditions warrant, right-of-way widths and pavement widths in excess of the minimum street standards may be required.
(A) A minimum street connectivity index, as determined by the method outlined in division 14.3.4(B), shall be established for all new residential subdivisions. Within the RP and RR Districts, the minimum index score shall be 1.2, and within the RS, RT, and RMX Districts, the minimum index score shall be 1.4. Planned unit developments shall have a minimum index score of 1.5 for the entire street network serving the development.
(B) The street connectivity index shall be calculated by dividing the number of “links” contained in the network by the number of “nodes” contained in the network. For the purpose of this calculation, a “node” is the intersection of two streets or the head of a cul-de-sac within the development. “Links” are lengths of street that connect the nodes. Street stubs shall be considered to be links, but alleys and temporary dead-end streets within the development are not counted as links. One link beyond each node that connects the internal street network to the external street network shall be included in this calculation.
(C) An applicant may submit a petition to the town requesting that the minimum connectivity index score be reduced. In the petition, the applicant shall demonstrate how if the proposed site design developer has achieved the required connectivity score to the maximum extent practicable given the topography, environmental conditions, natural features, or adjacent existing development patterns. The Ordinance Administrator shall review the petition and evaluate whether it meets the town's connectivity standard to the maximum extent practicable given the demonstrated site conditions listed in this subsection.
(A) Where permitted. Private streets shall be permitted in single-family detached residential developments, townhouses developments, and in residential developments that are gated or otherwise secured self-contained developments that have their access to public street(s) at one or more secured points.
(B) Design and construction. The pavement, construction, and design standards for all private streets shall be equivalent to the standards for local residential streets unless the developer supplies an alternate pavement design (supported by an engineering study) approved by the town. The developer must furnish an engineer’s seal and certification that the private streets have been tested and certified for the subgrade, base, and asphalt. Common area may need to be widened to include the side ditch section.
14.3.10 Street intersections. Streets shall be designed to intersect each other at angles as close to 90 degrees as possible. Property lines at street intersections shall be a tangent connecting points on each right-of-way line, which are located a minimum distance of 20 feet back from the intersection of the two right-of-way lines in residentially zoned areas and 50 feet in nonresidentially zoned areas.
(Ord. A.21.01, passed 6-3-2021)