HomeMy WebLinkAboutTIA Executive Summary(:D) DAVENPORT
June 30, 2022
TRANSPORTATION IMPACT ANALYSIS
Ironwood
New Hanover County, NC
Prepared for
Hoosier Daddy, LLC
DAVENPORT
Transportation Impact Analysis
Ironwood
New Hanover County, NC
Prepared for Hoosier Daddy, LLC
June 30, 2022
Analysis by: Tou Lee, E.I.
Nick Liguori, P.E.
Drafting/Graphics by: Tou Lee, E.I.
Reviewed by: Nick Liguori, P.E.
Don Bennett, P.E.
Sealed by: Nick Liguori, P.E.
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This document, together with the concepts and designs presented herein, is intended only for the specific
purpose and client for which it was prepared. Reuse of, or improper reliance on, this document by others
without written authorization and adaptation by DAVENPORT shall be without liability to DAVENPORT and
shall be a violation of the agreement between DAVENPORT and the client.
Home Office:
John Davenport Engineering, Inc. Wilmington Regional Office: Serving the Southeast since 2002
119 Brookstown Ave. Suite PH 5917 Oleander Drive, Suite 206 NC License: C-2522
Winston-Salem, NC 27101 Wilmington, NC 28403
Main: 336.744.1636: Fax: 336.458.9377 Main: 910.251.8912
DAV EMORT
Ironwood — Transportation Impact Analysis
Hanover County, NC
Prepared for Hoosier Daddy, LLC.
June 30, 2022
Executive Summary
The proposed Ironwood development is to be located north of Shiloh Drive and east of
Rosa Parks Lane in New Hanover County, NC. The development proposes to utilize the
existing Shiloh Drive and two (2) proposed site access points off US 421.
Ironwood development will be analyzed for three (3) phases:
• Phase 1A will consist of 125 dwelling units of single-family homes. Phase 1A will
utilize the existing Shiloh Drive as the site access. The build year for Phase 1A is
assumed to be 2023.
• Phase 1 B includes the addition of approximately 125 dwelling units of townhomes.
In addition to the existing Shiloh Drive, Phase 1 B proposes a new right -in right -out
access connection on US 421 north of Rosa Parks Lane. The build year for Phase
1 B is assumed to be 2024.
• Phase 2 includes the addition of approximately 116 dwelling units of townhomes.
Phase 2 proposes an egress only access connection on US 421 north of Sanders
Road, south of the Tregembo Animal Park. The build year for Phase 2 is assumed
to be 2026.
Based on rates and equations in the ITE Trip Generation Manual, the site has a trip
generation potential of 204 trips in the AM peak, 255 trips in the PM peak and a total of
3,058 daily trips.
DAVENPORT was retained to determine the potential traffic impacts of this development
and to identify transportation improvements that may be required to accommodate the
impacts of both background traffic and new development traffic.
The need for roadway improvements was reviewed based on the capacity analysis and
turn lane warrant analysis. In Phase 1A condition, no improvements are recommended
based upon the results.
In Phase 1 B, based on the capacity analysis, NCDOT turn lane criteria and projected
volumes, a right turn lane on US 421 is warranted at Site Access 1.
At the intersection of US 421 and SB-NB U-turn south of Rosa Parks Lane, it is
recommended to extend the southbound U-turn lane from 450 feet to 500 feet of storage.
It is also recommended to optimize the signal timings at this intersection.
6/30/2022 210291 Ironwood — TIA Executive Summary
DAV EMORT
Based on the NCDOT nomograph for intersection signalization with two or three
approaches, a traffic signal is warranted at US 421 and Beau Rivage Driveway during
existing conditions whether the development is built or not. Due to the proximity of the
nearby signal, the installation of a signal is not recommended. The committed northbound
leftover/U-turn lane storage is expected to be adequate to contain the future queues. Also,
exiting traffic can reroute and use alternative accesses to reduce exit delays.
Based on the Phase 2 analysis, the recommendations from Phase 1 B are expected to
remain adequate.
Please note that all site access points should be designed according to NCDOT and City
of Wilmington standards. The recommended improvements are illustrated in Exhibit A
and are summarized in Table A. In conclusion, this analysis has been conducted based
on the City of Wilmington and NCDOT guidelines and has identified roadway
improvements to mitigate this development's impacts.
6/30/2022 210291 Ironwood — TIA Executive Summary ii