TRC Comments - Woodlake Traffic Calming Device Request
Woodlake Subdivision Traffic Calming Device Request – TRC Review
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To: Peng Zhu – (pzhu@transystems.com)
From: Robert Farrell, Senior Planner
Date: April 11, 2023
Egov# N/A
Subject: Woodlake Subdivision Traffic Calming Device Request – TRC Review
Planning, Robert Farrell 910-798-7164
Section 6.2.2.O requires the following information be provided for a Traffic Calming Device application for
an existing street:
1. The road is privately owned and maintained with a functional classification of local road or
neighborhood collector.
The road is privately owned and is classified as a local road or neighborhood collector.
2. The roadway is “primarily residential,” with at least 75 percent of the properties fronting on the
street being located in a residential zoning district and / or residential land uses.
The street is residential with 100 percent of the properties in a residential zoning district or used
residentially.
3. Fifteen (15) percent of present day traffic exceeds 30 mph.
Traffic study shows less than 15 percent of present day traffic exceeds 30 mph.
4. Traffic volumes on the affected street must be less than 4,000 vehicles per day.
Applicant’s traffic study shows an average of less than 1000 vehicles per day.
5. The street is not a primary access route for emergency response.
Will need confirmation from Emergency Services
Woodlake Subdivision Traffic Calming Device Request – TRC Review
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6. An active property owners association exists to install and maintain traffic calming device(s).
A property owners association exists and has expressed willingness to install and maintain traffic
calming devices.
7. A previous traffic calming device application has not been denied within the past 12 months.
A previous traffic calming device application has not been denied within the past 12 months.
8. An engineering study that the traffic calming devices are warranted and feasible to implement in
the affected area.
Applicants have provided a study.
The traffic calming study, certified by an individual licensed in North Carolina to perform such activities
must include the following:
1. Roadway characteristics including alignment, grade, sight distance, intersection spacing, driveway
location, edge treatments (curbing, shoulders, etc), signage, pavement markings, and on-street
parking.
Not included in traffic study materials.
2. Vehicle characteristics of existing traffic (based on a three-day vehicle classification study)
Vehicle characteristics included for a two-day study.
3. Traffic speed and volume data (based on a three-day speed and volume study)
Traffic speed and volume data included for a two-day study.
4. Three-year crash history
Not included in traffic study materials.
5. Recommended devices including typical details.
Recommended devices and typical details included in study materials.
6. A conceptual plan demonstrating the proposed location of traffic calming devices and associated
advanced warning signage / pavement markings.
Not included in traffic study materials.
7. A recommended implementation schedule and preliminary line-item cost estimates
Not included in traffic study materials.
The Technical Review Committee (TRC) has the authority to reject an application based on engineering
judgement, an absence of documented need and / or concerns with adverse impacts on emergency
response, as well as bicycle and pedestrian safety.
Woodlake Subdivision Traffic Calming Device Request – TRC Review
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Cape Fear Public Utility Authority – Bernice Johnson (910) 332-6620
1. If traffic calming circle is approved, CFPUA will need to review the location to ensure it does not
impact the water and sewer utilities.
NCDOT (910) 398-9100
2. No comments on the proposed site as it doesn’t connect to or directly impact any state roads.
WMPO – Jamar Johnson (910) 473-5130
1. This section of Ontario Rd is 32’ wide from edge of pavement to edge of pavement with valley
curb and gutter. Please be mindful of potential drainage issues when installing certain traffic
calming devices.
2. It is not recommended practice to install speed tables on roads with posted speed limits of less
than 25mph per NACTO.
3. FHWA does not recommend installing speed tables along road curves that have a horizontal
curve radius of 300 feet.
4. The section of Ontario Rd that was studied has a posted speed limit of 20mph. The study
showed that the 85th percentile speed overall is 27mph for this section of Ontario Rd. The
conclusion of the study recommends speed tables. According to Appendix A, NACTO, and FHWA,
speed tables are effective in maintaining speeds between 25mph and 30mph. The installation of
speed tables may not effectively reduce speeds below 25mph.