HomeMy WebLinkAboutTIA 7-Eleven1
MAY 8, 2025
IMPACT DESIGNS, INC.
Prepared by: Nicholas Burns, PE
TRAFFIC IMPACT ANALYSIS
Castle Hayne 7-Eleven
Convenience Store
Castle Hayne, North Carolina
Castle Hayne 7-Eleven |i
Table of Contents
EXECUTIVE SUMMARY ................................................................................................................. iii
1. INTRODUCTION ......................................................................................................................... 1
1.1. Project Summary .............................................................................................................. 1
1.2. Existing Roadway Conditions .......................................................................................... 2
1.3. Driveway Location ............................................................................................................ 2
2. TRAFFIC VOLUME DEVELOPMENT..................................................................................... 7
2.1. Existing Traffic Volumes .................................................................................................. 7
2.2. Adjacent Development Traffic Volumes ......................................................................... 7
2.3. Projected Traffic Volumes ............................................................................................... 7
2.4. Proposed Development Traffic Volumes ........................................................................ 7
2.5. Future Build Traffic Volumes ......................................................................................... 8
3. TRAFFIC IMPACT ANALYSIS ............................................................................................... 20
3.1. Turn Lane Analysis ........................................................................................................ 20
3.2. Intersection LOS Analysis .............................................................................................. 21
3.3. Capacity Analysis ............................................................................................................ 22
3.4. Queuing Analysis ............................................................................................................ 25
4. SUMMARY OF FINDINGS AND RECOMMENDATIONS .................................................. 27
Castle Hayne 7-Eleven |ii
Tables
Table 1 – Study Area Summary .................................................................................................................... 2
Table 2 – Trip Generation ............................................................................................................................. 8
Table 3 – HCM 6th Edition LOS Criteria for Signalized & Unsignalized Intersections ............................ 21
Table 4 – Intersection Capacity Analysis Results ....................................................................................... 23
Table 5 – 2027 Queuing Analysis ............................................................................................................... 25
Figures
Figure 1 – Project Location ........................................................................................................................... 3
Figure 2 – Conceptual Site Plan .................................................................................................................... 4
Figure 3 – Existing Lane Configuration ....................................................................................................... 5
Figure 4 – Existing (2024) Traffic Volumes ................................................................................................. 9
Figure 5 – Adjacent Development Traffic Volumes ................................................................................... 10
Figure 6 – No-Build (2027) Traffic Volumes ............................................................................................. 12
Figure 7 – Site Trip Distribution ................................................................................................................. 13
Figure 8 – Site Trip Assignment ................................................................................................................. 14
Figure 9 – Pass-By Distribution .................................................................................................................. 17
Figure 10 – Pass-By Trip Assignment ........................................................................................................ 18
Figure 11 – Build (2027) Traffic Volumes ................................................................................................. 19
Figure 12 – Proposed Lane Configuration .................................................................................................. 26
Appendices
A) NCDOT Scoping Checklist
B) Traffic Count Data
C) Turn Lane Warrant Analysis
D) Synchro Capacity Analysis Reports
E) SimTraffic Analysis Reports
F) Signal Warrant Analysis
Castle Hayne 7-Eleven |iii
EXECUTIVE SUMMARY
A traffic impact study was conducted for the proposed Castle Hayne 7-Eleven development in accordance
with NCDOT guidelines. The proposed development is located on the south side of Holly Shelter Road, west
of Barbados Boulevard, in Castle Hayne, North Carolina. The development is expected to consist of a 4,824
sq. ft. convenience store with 16 vehicle fueling stations and four truck fueling stations and is expected to be
completed in 2027. Access to the site is to be provided via a full movement connection to Barbados Boulevard
for passenger vehicle traffic and two connections to Barbados Boulevard for truck traffic: a one-way ingress
and a one-way egress.
The study was determined through coordination with NCDOT and consists of the following intersections:
Holly Shelter Road and I-40 Eastbound Ramps
Holly Shelter Road and I-40 Westbound Ramps
Holly Shelter Road and Barbados Boulevard
Barbados Boulevard and Access A
Barbados Boulevard and Access B
Barbados Boulevard and Access C
For the purpose of this analysis, the study intersections listed above were analyzed under the following
scenarios:
Existing (2024) Conditions
No-Build (2027) Conditions
Build (2027) Conditions
Traffic operations during the AM and PM peak hours were modeled for each scenario. The results of each
scenario were compared to determine impacts from background traffic growth and the proposed
development.
The capacity analysis indicates that all approaches at the signalized ramp terminal intersections are expected
to operate at LOS D or better in all scenarios. Operations under Build conditions are expected to be similar
to the No-Build operations in both peak hours.
The unsignalized intersection of Holly Shelter Road and Barbados Boulevard is expected to operate with
high side street delay in the PM peak hour of the No-Build scenario and both peak hours of the Build scenario.
As mentioned previously, the intersection meets the MUTCD volume-based signal warrants under Build
conditions. Consequently, it is recommended that the intersection be signalized and coordinated with the
other corridor signals as mitigation for the increase in side street delay caused by the proposed development.
With this improvement, the overall intersection is anticipated to operate at LOS B in both peak hours.
The queueing analysis indicates that the queue in the eastbound right turn lane on Holly Shelter Road at
Barbados Boulevard is expected to exceed the existing 125 feet of storage with the new traffic signal under
Build conditions. It is recommended that the turn lane be extended to provide 250 feet of storage.
Castle Hayne 7-Eleven |iv
Recommendations:
Construct a southbound right turn lane on Barbados Boulevard at Access A with maximum storage
and taper extending to Holly Shelter Road.
Install a traffic signal at Holly Shelter Road and Barbados Boulevard.
Extend the eastbound right turn lane on Holly Shelter Road at Barbados Boulevard to provide 215
feet of storage.
Castle Hayne 7-Eleven |1
1. INTRODUCTION
The purpose of this report is to summarize the traffic impact analysis that was completed for the proposed
Castle Hayne 7-Eleven development in Castle Hayne, North Carolina. The study was developed in
accordance with NCDOT guidelines. The purpose of the study is to determine the potential impact to the
surrounding transportation system caused by the traffic generated by the development. This report
summarizes the procedures and findings of the traffic impact study.
1.1. Project Summary
The proposed development is located on the south side of Holly Shelter Road, west of Barbados Boulevard,
in Castle Hayne, North Carolina. The development is expected to consist of a 4,824 sq. ft. convenience store
with 16 vehicle fueling stations and four truck fueling stations and is expected to be completed by 2027. This
traffic impact study analyzes the effects of the additional traffic associated with the proposed development
during the weekday AM (7:00 AM - 9:00 AM) and the weekday PM (4:00 PM - 6:00 PM) peak periods. The
study area for the purpose of the analysis includes:
Holly Shelter Road and I-40 Eastbound Ramps
Holly Shelter Road and I-40 Westbound Ramps
Holly Shelter Road and Barbados Boulevard
Barbados Boulevard and Access A
Barbados Boulevard and Access B
Barbados Boulevard and Access C
Refer to Figures 1 and 2 for the site location and the conceptual site plan.
For the purpose of this analysis, the study intersections listed above were analyzed under the following
scenarios:
Existing (2024) Conditions
No-Build (2027) Conditions
Build (2027) Conditions
Castle Hayne 7-Eleven |2
1.2. Existing Roadway Conditions
The primary roadways within the study area are Holly Shelter Road and Barbados Boulevard. A summary
of their existing characteristics is shown in Table 1.
Table 1 – Study Area Summary
Facility Name Route # Typical Cross
Section
Posted
Speed Limit
Maintained
By AADT
Holly Shelter Road SR 1002 3-lane undivided 45/55 MPH NCDOT 5,900
(2023)
Barbados Boulevard N/A 2-lane undivided 45 MPH Local No Data
Refer to Figure 3 for an illustration of the existing lane geometry and traffic control at the study intersections.
1.3. Future Roadway Conditions
The adjacent developments, Holly Shelter Industrial Park (Phase 1) and Blue Tank Residential, are expected
to be completed prior to the completion of the Castle Hayne 7-Eleven project. These adjacent developments
are required to make the following improvements as mitigation for their impact on the network.
Install a traffic signal at Holly Shelter Road and I-40 Eastbound Ramps
Install a traffic signal at Holly Shelter Road and I-40 Westbound Ramps
Extend the northbound right turn lane on the I-40 Westbound off-ramp to provide 400 feet of storage.
These mitigation measures were considered background improvements and were assumed to be completed
prior to the completion of the Castle Hayne 7-Eleven development. The assumed future roadway conditions
are illustrated in Figure 4.
1.4. Driveway Location
Access to the site is to be provided via a full movement connection to Barbados Boulevard for passenger
vehicle traffic and two connections to Barbados Boulevard for truck traffic: a one-way ingress and a one-
way egress.
3+1 DSL3+1 DSL
ELECTRANS.
9350 (GEN 2)-CST-CFL
4,824 SF (SIPS)
6.4± ACRES
29 PARKS
5 TRUCK PARKS
5
DEF
EXIT THIS SIDE ONLY
CLEARANCE 16'-6"
20,000 GAL
DSL
7,000 GAL
DEF
20,000 GAL
DSL
12,000 GAL
DSLPUL
8,000 GAL
20,000 GAL
RUL
19
55
NORMAL STRENGTH ASPHALT - 3,350 SY
NORMAL STRENGTH CONCRETE - 500 SY
HIGH STRENGTH ASPHALT - 3,600 SY
HIGH STRENGTH CONCRETE - 2,750 SY
PAVING TABLE
SKETCH PLAN
HOLLY SHELTER RD - CASTLE HAYNE NC SCALE: 1"=60'
DATE: 11/14/24
Castle Hayne 7-Eleven |7
2. TRAFFIC VOLUME DEVELOPMENT
2.1. Existing Traffic Volumes
Existing turning movement counts were conducted at the intersections during the weekday AM (7:00 AM to
9:00 AM) and weekday PM (4:00 PM to 6:00 PM) peak periods mostly in December 2024. The existing
(2024) traffic volumes are illustrated in Figure 5. Refer to Appendix B for a copy of the raw traffic count
data.
2.2. Adjacent Development Traffic Volumes
Two adjacent developments are expected to be completed either prior to or concurrently with the completion
of the proposed project.
Phase 1 of the Holly Shelter Industrial Park development, located to the south of Holly Shelter Road and east
of Diamond Shamrock Road, is expected to consist of up to 562,500 square feet of industrial use to be
completed by 2027. Refer to Figure 6 for an illustration of the Holly Shelter Industrial Park (Phase 1) volumes
on the study network.
The Blue Tank Residential development, located to the south of Holly Shelter Road and west of Blue Clay
Road, is expected to consist of 263 townhomes and 240 multifamily units to be completed by 2027. Refer to
Figure 7 for an illustration of the Blue Tank Residential volumes on the study network.
2.3. Projected Traffic Volumes
Based on coordination with NCDOT, a 1.5% annual growth was applied to the 2024 counts to project traffic
volumes for the future year (2027). This growth rate was applied to account for all background growth in the
area without any adjacent and/or the proposed development. Refer to Figure 8 for an illustration of the No-
Build (2027) traffic volumes.
2.4. Proposed Development Traffic Volumes
As mentioned previously, the proposed development is expected to consist of a 4,824 sq. ft. convenience
store with 16 vehicle fueling stations and four truck fueling. The project is expected to be completed by 2027.
The trip generation potential for the development was estimated utilizing methodology contained within the
ITE’s Trip Generation Manual, 11th Edition. Utilizing ITE equations for ITE Code 945, traffic volumes were
generated for the weekday daily, the weekday AM peak hour, and the weekday PM peak hour. Refer to Table
2 for a summary of the trip generation potential of the proposed development.
Castle Hayne 7-Eleven |8
Table 2 – Trip Generation
ITE Land Use (Code) Density Independent
Variable
Daily
Traffic
AM Peak PM Peak
Enter Exit Enter Exit
Convenience Store/Gas
Station (GFA 4-5.5k)
(ITE Code 945)
20
Vehicle
Fueling
Positions
5,143 270 271 228 227
Truck Trips (2% of total trips) 103 5 5 5 5
Pass By Trips
[capped at 10% of Holly Shelter Road peak hour volume] 127 127 121 121
Total Primary Passenger Vehicle Trips 138 139 102 101
Site traffic associated with the proposed development was distributed and assigned to the roadway network
based upon existing travel patterns and are summarized below:
Passenger Vehicles
25% to/from the west via Holly Shelter Road
10% to/from the east via Holly Shelter Road
40% to/from I-40 Westbound
20% to/from I-40 Eastbound
5% to/from the south via Barbados Boulevard
Trucks
10% to/from the east via Holly Shelter Road
50% to/from I-40 Westbound
40% to/from I-40 Eastbound
Refer to Figures 9 through 14 for illustrations of the site trip distributions and assignments for the proposed
development.
2.5. Future Build Traffic Volumes
The site generated traffic volumes were added to the No-Build traffic volumes to determine the Build traffic
volumes. The Build (2027) volumes are illustrated in Figure 15.
Castle Hayne 7-Eleven |20
3. TRAFFIC IMPACT ANALYSIS
3.1. Turn Lane Analysis
A turn lane analysis was conducted for the site accesses utilizing the Build (2027) traffic volumes. Based on
build out volumes, a right turn lane is warranted on Barbados Boulevard at Access A. Based on the NCDOT
nomograph, the right turn lane should be constructed with 175 feet of storage; however, due to the limited
distance, it is recommended that the new right turn lane be constructed with maximum storage and taper
extending to Holly Shelter Road. Refer to Appendix C for the turn lane warrants with volumes graphed.
3.2. Signal Warrant Analysis
A signal warrant analysis was performed for the intersection of Holly Shelter Road and Barbados Boulevard
under the Build (2027) conditions. Volumes were developed for each hour that counts were collected: from
6 AM to 7 PM. Using hourly distributions for each land use found in the ITE Trip Generation Manual, 11th
Edition appendix, site trips for both the adjacent developments and the proposed 7-Eleven development were
generated for each hour and then added to the No-Build (2027) volumes.
Based on the signal warrant analysis, the intersection meets MUTCD Signal Warrants 1, 2, and 3 in the Build
scenario. Refer to Appendix F for details on the volume development and for the signal warrant analysis
spreadsheets.
Castle Hayne 7-Eleven |21
3.3. Intersection LOS Analysis
Using the existing, no-build, and build traffic volumes, intersection analyses were conducted for the study
intersections under Existing (2024) conditions, No-Build (2027) conditions, and Build (2027) conditions.
This analysis of the signalized and unsignalized intersections was conducted using the Transportation
Research Board’s Highway Capacity Manual 6th Edition (HCM 6th Edition) methodologies of the Synchro,
Version 11 software. The roundabouts were analyzed utilizing the Sidra Intersection, Version 9.1.
Intersection level of service (LOS) grades range from LOS A to LOS F, which are directly related to the level
of control delay at the intersection and characterize the operational conditions of the intersection traffic flow.
LOS A operations typically represent ideal, free-flow conditions where vehicles experience little to no delays,
and LOS F operations typically represent poor, forced-flow (bumper-to-bumper) conditions with high
vehicular delays, and are generally considered undesirable. Table 3 summarizes the HCM 6th Edition control
delay thresholds associated with each LOS grade for signalized and unsignalized intersections.
Table 3 – HCM 6th Edition LOS Criteria for Signalized & Unsignalized Intersections
Signalized Intersections Unsignalized Intersections
LOS Control Delay per Vehicle
(seconds) LOS Control Delay per Vehicle
(seconds)
A ≤ 10 A ≤ 10
B > 10 and ≤ 20 B > 10 and ≤ 15
C > 20 and ≤ 35 C > 15 and ≤ 25
D > 35 and ≤ 55 D > 25 and ≤ 35
E > 55 and ≤ 80 E > 35 and ≤ 50
F > 85 F > 50
A PHF of 0.90 and heavy vehicle percentage of 2% were applied to all movements for the purpose of this
analysis with the exception of the turning movements into and out of the truck accesses which were assumed
to be 100% heavy vehicles.
Castle Hayne 7-Eleven |22
3.4. Capacity Analysis
The results of the capacity analysis for the study intersections under existing traffic control are summarized
below in Table 4. Refer to Appendix D for the detailed capacity analysis reports.
Castle Hayne 7-Eleven |23
Table 4 – Intersection Capacity Analysis Results
Intersections Approach Movement
LOS (Delay in seconds per vehicle)
Existing (2024) No-Build (2027) Build (2027) Build Improved
(2027)
AM PM AM PM AM PM AM PM
Holly Shelter
Road & I-40
Eastbound
Ramps
EB
T - - C (24.2) C (20.6) C (26.9) C (22.1) C (26.9) C (22.1)
R - - B (11.8) B (10.6) B (12.4) B (11.1) B (12.4) B (11.1)
Approach - - B (15.9) B (15.6) B (17.7) B (16.8) B (17.7) B (16.8)
WB
L A (8.1) A (8.2) D (43.3) C (32.1) D (41.9) C (32.5) D (41.8) C (33.0)
T - - A (6.2) A (3.3) A (7.6) A (4.0) A (7.2) A (3.7)
Approach - - C (21.0) B (12.9) C (21.4) B (13.6) C (21.2) B (13.7)
NB
L E (37.4) E (44.9) C (31.4) D (38.8) C (30.2) D (38.5) C (30.2) D (38.5)
R A (9.6) A (9.6) D (40.0) D (42.7) D (41.4) D (46.3) D (41.4) D (46.3)
Approach - - D (37.1) D (41.0) D (38.1) D (43.4) D (38.1) D (43.4)
Overall - - C (21.4) B (15.9) C (22.5) B (17.2) C (22.4) B (17.2)
Holly Shelter
Road & I-40
Westbound
Ramps
EB
T - - A (8.1) B (18.2) B (10.6) C (21.7) A (9.6) C (21.7)
R - - A (1.3) A (0.3) A (1.0) A (0.3) A (1.6) A (0.3)
Approach - - A (7.3) B (14.3) A (9.6) B (17.6) A (8.7) B (17.6)
WB
L A (7.7) A (7.7) D (39.9) D (43.1) D (44.7) D (46.3) D (44.2) D (48.0)
T - - B (10.5) B (16.7) B (11.3) B (18.0) A (7.9) B (13.2)
Approach - - B (13.9) C (22.2) B (17.4) C (24.8) B (14.5) C (21.6)
NB
L D (31.5) F (135.8) D (40.1) D (37.8) D (40.1) D (37.8) D (40.1) D (37.8)
R B (10.5) B (12.1) B (19.7) B (15.7) C (20.3) B (15.8) C (20.3) B (15.8)
Approach - - C (30.1) C (26.4) C (29.5) C (26.0) C (29.5) C (26.0)
Overall - - B (18.6) C (22.7) B (19.9) C (24.0) B (18.6) C (22.7)
Holly Shelter
Road &
Barbados
Boulevard
EB
T - - - - - - B (11.6) B (13.4)
R - - - - - - A (0.2) A (0.1)
Approach A (7.2) B (10.6)
WB
L A (8.1) A (8.5) A (9.0) A (9.3) A (9.9) B (10.1) B (10.5) B (10.8)
T - - - - - - B (11.8) B (12.8)
Approach - - - - - - B (11.6) B (12.6)
NB LR B (14.1) C (21.9) C (23.5) F (59.8) F (242.4) F (531.7) D (36.7) D (39.4)
Overall - - - - - - B (14.2) B (16.4)
Barbados
Boulevard &
Access A
EB LR
Analyzed under Build conditions only.
B (12.2) B (11.0) - -
NB LT A (8.2) A (7.8) - -
SB T - - - -
R - - - -
Barbados
Boulevard &
Access B
EB LR
Analyzed under Build conditions only.
B (10.6) B (10.0) - -
NB T - - - -
SB T - - - -
Barbados
Boulevard &
Access C
NB LT Analyzed under Build conditions only. A (8.6) A (8.2) - -
SB TR - - - -
Castle Hayne 7-Eleven |24
The capacity analysis indicates that all approaches at the signalized ramp terminal intersections are expected
to operate at LOS D or better in all scenarios. Operations under Build conditions are expected to be similar
to the No-Build operations in both peak hours.
The unsignalized intersection of Holly Shelter Road and Barbados Boulevard is expected to operate with
high side street delay in the PM peak hour of the No-Build scenario and both peak hours of the Build scenario.
As mentioned previously, the intersection meets the MUTCD volume-based signal warrants under Build
conditions. Consequently, it is recommended that the intersection be signalized and coordinated with the
other corridor signals as mitigation for the increase in side street delay caused by the proposed development.
With this improvement, the overall intersection is anticipated to operate at LOS B in both peak hours.
Castle Hayne 7-Eleven |25
3.5. Queuing Analysis
A queuing analysis was also completed for all no-build and build-improved traffic. Reported in Table 5 is
the maximum queue for each turn lane and side street approach. Additional storage is recommended where
the site traffic introduced in the Build scenario extends the queue beyond the available storage. Refer to
Appendix E for the detailed SimTraffic reports.
Table 5 – 2027 Queuing Analysis
Intersections Lane
Group
Storage
(feet)
Max Queue (feet)
AM Peak Hour PM Peak Hour
No-Build Build Improved No-Build Build Improved
95th
%-ile
Max
Queue
95th
%-ile
Max
Queue
95th
%-ile
Max
Queue
95th
%-ile
Max
Queue
Holly Shelter Road
& I-40 Eastbound
Ramps
EB-R 150 230 211 230 216 142 129 143 221
WB-L Full 231 304 263 301 228 291 251 322
NB-L Full 78 233 78 259 66 138 66 178
NB-R 25 146 125 173 125 84 109 105 121
Holly Shelter Road
& I-40 Wetbound
Ramps
EB-R Full 0 0 2 0 0 0 0 0
WB-L 200 75 109 127 171 147 207 197 241
NB-L Full 245 297 245 275 321 359 321 336
NB-R 400 167 218 207 239 214 286 246 272
Holly Shelter Road
& Barbados
Boulevard
EB-R 125 0 2 0 147 0 0 0 204
WB-L 225 2 26 57 110 1 23 44 91
NB-LR Full 17 50 226 133 103 115 251 134
Barbados
Boulevard &
Access A
EB-[LR] Full - - 43 220 - - 30 191
NB-[L]T Full - - 1 46 - - 1 85
SB-[R] Full - - 0 18 - - 0 11
Barbados
Boulevard &
Access B
EB-[LR] Full - - 1 71 - - 1 78
Barbados
Boulevard &
Access C
NB-[L]T Full - - 0 11 - - 0 19
The queueing analysis indicates that the queue in the eastbound right turn lane on Holly Shelter Road at
Barbados Boulevard is expected to exceed the existing 125 feet of storage with the new traffic signal under
Build conditions. It is recommended that the turn lane be extended to provide 215 feet of storage.
Figure 16 shows the proposed lane configurations and traffic control for the Build (2027) conditions.
Castle Hayne 7-Eleven |27
4. SUMMARY OF FINDINGS AND RECOMMENDATIONS
A traffic impact study was conducted for the proposed Castle Hayne 7-Eleven development in accordance
with NCDOT guidelines. The proposed development is located on the south side of Holly Shelter Road, west
of Barbados Boulevard, in Castle Hayne, North Carolina. The development is expected to consist of a 4,824
sq. ft. convenience store with 16 vehicle fueling stations and four truck fueling staions and is expected to be
completed in 2027. Access to the site is to be provided via a full movement connection to Barbados Boulevard
for passenger vehicle traffic and two connections to Barbados Boulevard for truck traffic: a one-way ingress
and a one-way egress.
The study was determined through coordination with NCDOT and consists of the following intersections:
Holly Shelter Road and I-40 Eastbound Ramps
Holly Shelter Road and I-40 Westbound Ramps
Holly Shelter Road and Barbados Boulevard
Barbados Boulevard and Access A
Barbados Boulevard and Access B
Barbados Boulevard and Access C
For the purpose of this analysis, the study intersections listed above were analyzed under the following
scenarios:
Existing (2024) Conditions
No-Build (2027) Conditions
Build (2027) Conditions
Traffic operations during the AM and PM peak hours were modeled for each scenario. The results of each
scenario were compared to determine impacts from background traffic growth and the proposed
development.
The capacity analysis indicates that all approaches at the signalized ramp terminal intersections are expected
to operate at LOS D or better in all scenarios. Operations under Build conditions are expected to be similar
to the No-Build operations in both peak hours.
The unsignalized intersection of Holly Shelter Road and Barbados Boulevard is expected to operate with
high side street delay in the PM peak hour of the No-Build scenario and both peak hours of the Build scenario.
As mentioned previously, the intersection meets the MUTCD volume-based signal warrants under Build
conditions. Consequently, it is recommended that the intersection be signalized and coordinated with the
other corridor signals as mitigation for the increase in side street delay caused by the proposed development.
With this improvement, the overall intersection is anticipated to operate at LOS B in both peak hours.
The queueing analysis indicates that the queue in the eastbound right turn lane on Holly Shelter Road at
Barbados Boulevard is expected to exceed the existing 125 feet of storage with the new traffic signal under
Build conditions. It is recommended that the turn lane be extended to provide 250 feet of storage.
Castle Hayne 7-Eleven |28
Recommendations:
Construct a southbound right turn lane on Barbados Boulevard at Access A with maximum storage
and taper extending to Holly Shelter Road.
Install a traffic signal at Holly Shelter Road and Barbados Boulevard.
Extend the eastbound right turn lane on Holly Shelter Road at Barbados Boulevard to provide 215
feet of storage.