Article 14.4 - Intersection Capacity Utilization
14.4 Intersection Capacity Utilization Percentage Standards; Mitigation; Compliance; Excess Capacity
14.4.1 Intersection Capacity Utilization Percentage Standards
The following Intersection Capacity Utilization (ICU) percentage standards, measured using the most recent methodology, shall be used when determining the adequacy of intersection within the applicable impact area:
|Zoning District||Adopted ICU Percentage*|
| Rural and TR districts|| 73.0 (LOS C)|
| Town Center and TOD|| 91.0 (LOS E)|
| All other Districts|| 82.0 (LOS D)|
* ICU percentage relates to the relative capacity of an intersection to accommodate vehicular traffic where a value of 100% means that the intersection is at capacity and likely experiences congestion periods of 60 minutes.
Where an intersection is located within more than one zoning district, the less restrictive ICU percentage shall apply to the entire intersection for purposes of complying with this Article.
Infrastucture shall be considered sufficient if the ICU percentage is at or below those established in Section 14.4.1 or when, as a result of proposed development, an increase in the ICU percentage is three (3) percent or less.
Where an ICU percentage is above those established in Section 14.4.1 or, as a result of proposed development, becomes greater than the adopted standard and has increased by more than 3 percent; a development application may be approved if the applicant proposes measures that fully mitigate the transportation impacts of the proposed development.
Proposed mitigation shall fully reduce the ICU percentage of the impacted intersection to either the adopted standard in Section 14.4.1 or to within 3 percent of the no-build ICU percentage.
Proposed mitigation measures to meet the ICU percentage standards of Article 14.4.1 may be modified, subject to Town Board approval, in order to substantially achieve the intent of this ordinance with input provided by the Town Engineer.
A modification to the proposed mitigation, which may be considered by the Town Board as meeting the intent of the ordinance, is where proposed mitigation at an impacted intersection provides measurable and beneficial surplus capacity (above and beyond the minimum ICU percentage standards) such that the surplus capacity may be counted toward credit in the mitigation of other impacted intersections. The method of measurement considered in determining the acceptability of such modifications will be the net effect on the cumulative ICU percentage totals.
Proposed mitigation may also include the provision of funding for transportation improvements on planned or funded Town or NCDOT projects previously adopted such that the improvements can be advanced to mitigate the impacts of the proposed development. This funding mitigation may be accepted by the Town Board only where it is shown that such mitigation is a reasonable substitute for actual construction based on the ICU percentage totals and anticipated construction schedules of the projects. Proposed mitigation shall be included as a condition of approval.
Transportation improvements provided through mitigation, pursuant to this Article, shall be completed and available within three (3) years of the approval of the development proposal, unless expressly provided otherwise by the Town Board or other applicable Town permitting authority. Any improvements not completed prior to the issuance of a Certificate of Occupancy, shall be secured by a performance guarantee at 115 percent of the cost to complete the remaining improvement(s), as reviewed and approved by the Town Engineer. All necessary right-of-way for the transportation improvements shall be acquired prior to the issuance of a Certificate of Occupancy, whenever practicable.
Mitigation measures shall be consistent with the Standards found within the Town of Huntersville TIA Process and Procedures Manual and the Town Engineering Standards and Procedures Manual.
a) If the ICU percentage for an impacted intersection is greater than the adopted ICU percentage identified in Section 14.4.1 or, as a result of the proposed development, is anticipated to be greater than the adopted ICU percentage in Section 14.4.1, no application or petition subject to the requirements of this Article shall be approved unless the applicant or petitioner proposes sufficient mitigation of the impact of the proposed development. This determination shall be based on methodology identified in section 14.4.2
b) In the alternative to mitigation, the developer may elect to phase the project, reduce its intensity, or delay the project until the ICU percentage standards have been met as a result of a constructed transportation improvement by the Town, NCDOT or other party.