Agenda - 09-15-20; 5-a - Zoning Atlas Amendment - Master Plan Development Conditional Zoning District (MPD-CZ) for the Research Triangle Logistics Park (RTLP)

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403 Committed NCDOT Proiects: The TIA indicates the proposed development is proximal to two NCDOT projects currently programmed in the State Transportation Improvement Program(STIP). Namely, U-5845(Churton Street Widening) and I-3306A(I-40 Widening). Neither of these projects include committed improvements at any of the intersections included in the study area of this TIA. Analysis Results and Mitigation Requirements: Old NC 86 and Waterstone Drive/Rippy Lane Intersection: The analysis indicates that this intersection is expected to operate acceptably in the 2023 build scenario. We concur with the TIA recommendation that no improvements are required. Old NC 86 and I-40 Westbound Ramps Intersection: The analysis indicates a significant increase in delay and drop in LOS from D-F on the westbound approach with the addition of site traffic. Pursuant to NCDOT guidelines, the applicant will need to provide additional analysis and recommendations for mitigation of this impact to include assessment for warrant and need for a traffic signal. Old NC 86 and I-40 Eastbound Ramps Intersection: The TIA recommends installation of a traffic signal at this location. The applicant should provide additional traffic signal warrant assessment supporting this recommendation. In the event that a signal is verified to be warranted and needed, it is noted that the analysis indicates that a substantial queue for the southbound left turn movement that may exceed existing storage may result. Additionally, the analysis indicates that the queue for the northbound through/right movement is expected to spill beyond the existing Old NC 86 and Service Road intersection which would be expected to result in significant operational and safety issues at that location. The applicant will need to provide additional analysis and recommendations to mitigate the queue spillback or consider restrictions of left turn movements at the service road. Old NC 86 and Service Road Intersection: As noted above, queue spill back from the adjacent eastbound ramps will need to be mitigated or restrictions of left turns at this intersection will need to be considered with appropriate internal circulation patterns provided to route traffic to the proposed Davis Road as an alternate access route. In the event that a full movement intersection is approved at this location, then the following improvements are required.