HomeMy WebLinkAboutApproved ScopeNovember 7, 2024
Dylan Coley, PE
Davenport
4600 Marriott Drive, Suite 340
Raleigh, NC 27612
RE: Approved Scope for the Traffic Impact Analysis (TIA) associated with the proposed
Rainstorm Solutions Development in New Hanover County, NC
Dear Mr. Coley:
Based on the information provided, and conversations held to date, it is our understanding that the
proposed Rainstorm Solutions Development, to be located at 3121 NC 133 (Castle Hayne
Road) in New Hanover County, will be built in 2026 and consist of:
•ITE LUC 180 Specialty Trade Contractor – 20,650 square feet
•ITE LUC 822 Strip Retail Plaza – 13,500 square feet
•ITE LUC 932 High Turnover (sit down) Restaurant - 4,500 square feet
The site plan, provided October 31, 2024, by Davenport, proposes access at the following points:
•NC 133 (Castle Hayne Road) and Site Access 1/Swartville Road
Below please find the scope to be used for the Traffic Impact Analysis:
1.Data Collection - Analysis Parameters:
a.Study Intersections
i.NC 133 (Castle Hayne Road) and Site Access 1/Swartville Road
b.Traffic counts
i.For existing intersections, provide turning movement counts for weekday AM (7:00am-
9:00am) and PM (4:00 pm - 6:00pm) peak periods, signal timing (if applicable), and
lane geometry.
c.Site Trip Generation, Site Trip Distribution and Background Traffic Assumptions
i.Site Trip Generation Estimate
•Approved as submitted in scoping request (by Davenport, dated 10/31/24).
Page 2 of 3
ii. Site Trip Distribution
• To be submitted for approval and approved prior to use in the TIA.
iii. Adjacent Development (approved (but as of yet to be built)) development including but
limited to;
• N/A
iv. Planned Roadway Improvements
• N/A
v. Background Traffic Assumptions
• Build Year – 2026
• Growth rate – 1% per year
2. Capacity Analysis: Weekday AM & PM Peak Hour
a. Technical Analysis
i. 2024 Existing Conditions
ii. 2026 Future No-Build Conditions
[existing + 1% background growth + adjacent development]
iii. 2026 Future Build Conditions
[existing + 1% background growth + adjacent development + site trips]
iv. 2026 Future Build Conditions with Improvements
[existing + 1% background growth + adjacent development + site trips +
improvements]
3. Final Report Submittal:
a. Completed TIA Application
b. Signed and sealed by a Professional Engineer
c. Electronic copies to include PDF of TIA and Synchro files and Synchro analysis files in
digital format
4. Notes:
a. This scope shall remain valid for three months from the date of this letter.
b. Please note that if any changes occur (including but not limited to; land use, intensity,
phasing, and/or site access) additional analysis may be required.
Please contact me at (910) 341-7890 with any questions regarding this scope.
Sincerely,
Abby Lorenzo, MPA
Deputy Director
Wilmington Urban Area MPO
Page 3 of 3
Attachments: Traffic Impact Analysis Supplemental Guidelines (dated September 28, 2022)
Scoping request letter (provided by DAVENPORT, dated October 31, 2024)
Cc: Ben Hughes, PE, District Engineer, NCDOT Jon Roan, Deputy District Engineer, NCDOT Frank Mike, Assistant District Engineer, NCDOT Michael Bass, Assistant District Engineer, NCDOT Madi Lee, PE, Development Review Engineer, NCDOT Stonewall Mathis, PE, Division Traffic Engineer, NCDOT Bryce Cox, Assistant Traffic Engineer, NCDOT Robert Farrell, Development Review Supervisor, New Hanover County
Bill McDow, Associate Planner, WMPO
Traffic Impact Analysis Supplemental Guidelines
Developed by: NCDOT Division 3 Page 1 of 4 Updated: 09/28/2022
Submittal Framework for TIAs (3 Step process)
Step 1: Scoping Document – A scope approval will be provided no later than 10 business days from receipt of
the complete scoping document. Incomplete scoping documents will not be accepted for review and approval.
The documents to include for review and approval are:
1. Site Plan/Vicinity Map and a plan overlay on an aerial map
2. Proposed Land Uses and Trip Generation, including Pass-by and Internal Capture
3. Proposed Study Intersections and Types of Accesses
4. Proposed Annual Growth Rate with justification
5. Proposed Build Out Year(s)
6. Study Method for Capacity Analysis – peak periods and conditions
7. Approved Adjacent Developments
8. Committed Improvements
*IMPORTANT*
If the proposed development is phased, then land uses, trip generation estimates, build out years, roadway
improvements and analysis must reflect the proposed phasing. The phase schedule must be submitted for
approval prior to use in the TIA.
Step 1.A: Pre-Completeness Check – Documents for Input Verification prior to full TIA submittal – This step is
recommended, as these will be the first items checked at Step 2. If the applicant chooses to submit for input
verification, then comments or approval will be provided no later than 20 business days from receipt of the
documents. This step will result in the reduced likelihood of issues discovered in the Completeness Review and
Final Review.
All or any portion of these items can be submitted for review/approval:
1. Trip Distribution – Traffic counts must be performed prior to submittal of proposed distributions.
2. Proposed Volume Balancing
3. All diagrams – Existing Traffic Volumes, Future No Build Volumes, and Future Build Volumes
4. Synchro / Sidra Network Model Framework – Submit the framework for the Future No Build analysis.
This Synchro / Sidra model can be modified for Existing analysis.
Step 2: Completeness Review – TIA Report – A digital submittal of the completed document is to be
submitted for Preliminary Review. This review will be conducted to determine the completeness of the TIA
report, and comments or approval will be provided no later than 20 business days from receipt of the TIA.
Step 3: Final Sealed TIA Report - After preliminary approval has been provided, a digital and/or hard copy (as
requested) of the sealed TIA report is to be submitted. Final review comments or approval will be provided no
later than 20 business days from receipt of the TIA.
The NCDOT Congestion Management Section’s Capacity Analysis Guidelines Standards & Best Practices shall
be the basis for the development of all TIA reports. This Supplement provides a submittal framework for TIAs, as
well as direction on certain items within the Standards & Best Practices. Any deviations from the any of these
documents must be approved prior to preparation of the TIA.
Developed by: NCDOT Division 3 Page 2 of 4 Updated: 09/28/2022
Supplemental Direction for the Capacity Analysis Standards & Best Practices
Background Traffic Assumptions, Site Trip Generation, and Site Trip Distribution
1. Peak Hour Determination – In order to establish an accurate peak hour for analysis, the controlling
study intersection shall be determined. Once determined, the controlling intersection’s peak hour
timeframe shall be used for all other study intersections:
a) Analyze all study intersection volumes and determine the controlling intersection (intersection with
highest total volume).
b) Identify the relevant peak hours for the controlling intersection (e.g. 7:45-8:45 AM; 4:45-5:45 PM).
c) Use the volumes from the same peak hour at all other intersections in the study.
d) Do not use volume balancing without prior approval. Use of the same time period at all
intersections will typically reduce the need to perform volume balancing.
2. Site Trip Generation:
a) Unadjusted Trips – Use the appropriate Land Use Code in the ITE Trip Generation Manual (currently
the 11th Edition). The NCDOT Congestion Management Rate vs Equation Spreadsheet recommends
the variable, peak hour type, and type of trip calculation method to use for specific land uses.
b) Internal Capture - The Standards state to limit reductions for internal capture to the “land use
categories and time periods in the current HANDBOOK.” The current ITE Trip Generation Handbook
is the 3rd Edition. The Standards also state to estimate internal capture rates “using the NCHRP 684
spreadsheet referenced in the current HANDBOOK.” The Standards give guidance on using the
spreadsheet:
“Do not use transit or non-motorized splits in spreadsheet.
Vehicle occupancy “1.1” (NC averages).
Use Walking Distance between land uses of 4000’ or the calculated maximum distance between a
given pair of land use categories in the proposed site.”
To determine the internal capture entering and exiting per Land Use, use the percentages in Table
6-P: Internal Capture Percentages by Land Use with the “Estimated Vehicle-Trips” in Table 1-P:
Base Vehicle-Trip Generation Estimates (Tables found in the NCHRP 684 Internal Trip Capture
Estimation Tool).
c) Pass-by – The Standards state “to limit pass-by percentages to retail land uses in [the]
HANDBOOK.” The current ITE Trip Generation Handbook is the 3rd Edition. The calculation of the
trips should be based on the total peak hour trips with a 50/50 entering/exiting split; they are pass-
by trips which means they enter and exit along the same path, in the same direction, within the
same hour. The pass-by will be capped at 10% of the adjacent street traffic.
3. Site Trip Distribution –
Determined based on collected traffic count data. Both site trip distribution and pass-by trip
distribution should be submitted for approval prior to use in the TIA.
Developed by: NCDOT Division 3 Page 3 of 4 Updated: 09/28/2022
Synchro Signalized Intersection Setup
1. For existing signals, the size and position of the detector loops and the timing chart settings must
match the existing signal plans, with exception of:
a) Yellow Time = 5 sec
b) Red Time = 2 sec
c) Specific timing settings provided by the signal timing agency
2. For proposed signals, size and place the detector loops according to Part 1, Section 4 of the NCDOT
Signal Design Manual.
3. Contact signal timing agency for existing peak hour timings and other operational mode information.
Request specific analysis periods to ensure proper information is provided.
4. Existing signal timings shall be “locked” for all scenarios unless signal phasing changes are necessary in
the “Future Build with Improvements” scenario.
5. Recall Mode:
a) If simulating ‘free run’ operation (Actuated-Uncoordinated), use Min Recall on main street
phases.
b) If simulating ‘Coordinated Mode’ (Actuated-Coordinate), use C-Max on the coordinated phases.
6. Right-Turn-On-Red (RTOR) shall not be used in existing or future conditions without prior approval. In
some circumstances, RTOR may be necessary to minimize Synchro conflict errors.
7. All signalized left turns with a dedicated signal phase will be protected-only movements in all future
conditions. Protected-only left turn phasing in future conditions will identify required vehicle storage
needs in the event that protected-only phasing is necessary in the future.
8. Permissive-only left-turn phasing should remain permissive in future conditions, except where
protected-only phasing is being analyzed as an improvement to the intersection in the Future Build
with Improvement condition.
Synchro Analysis and Data Reports
1. Any “Field Condition” analysis that the engineer wishes to include can be provided in a separate
supplemental analysis file.
2. The “Future No-Build” and “Future Build” analysis conditions should only include improvements that
are a requirement of approved developments or a State/Municipal project to be constructed in the
build year for the proposed development. Any other capacity gained from lane improvements shown in
the analysis is assumed to be proposed by the developer and should only be included in the “Future
Build + Improvements” analysis condition.
3. The TIA shall include a chart that shows the “Level of Service” and “Delay” for each movement,
approach, and overall intersection, for every access alternative and build scenario.
4. A SimTraffic “Queuing and Blocking Report” for the network shall be included.
5. A comparison chart listing the Synchro 95th Percentile Queues and the SimTraffic Maximum Queues
shall be provided for all exclusive turn lanes. This chart shall include the existing turn lane length for
comparison to the reported Queue lengths. A sample chart is included on the last page.
Developed by: NCDOT Division 3 Page 4 of 4 Updated: 09/28/2022
Recommendations of the TIA Report
1. The NCDOT Policy On Street And Driveway Access to North Carolina Highways (p. 21-22) states, “The
applicant shall be required to identify mitigation improvements to the roadway network if at least one
of the following conditions exists when comparing base network conditions to project conditions:
a) The total average delay at an intersection or individual approach increases by
25% or greater, while maintaining the same Level of Service,
b) The Level of Service degrades by at least one level, or
c) Level of Service is “F.”
2. In the event that approved developments do not move forward, a revised scenario reflecting the
future conditions will be required as directed by the reviewing agencies to reflect the changes in the
underlying assumptions of the analysis.
3. The Best Practices state, “When performing analyses, providing an adequate overall intersection LOS
alone is not sufficient. Items such as queuing, individual movement level of service, and volume-to-
capacity ratio should be evaluated and addressed.” The information in the charts listed under “Synchro
Analysis and Data Reports” in the previous section, should be used when determining the
improvements to address the impacts of site-generated traffic.
4. Recommended storage lane lengths shall be provided for all exclusive turn lanes and based on the
Synchro 95th Percentile Queue or the SimTraffic Maximum Queue, whichever is larger.
5. If phase changes are recommended as an improvement, then a Synchro analysis for “Future Build +
Improvements” shall be included in the TIA.
6. Signal timing adjustments and/or Signal Optimization in Synchro (i.e. “Optimize Splits”) shall not be
used unless phase changes are recommended as an improvement. Signal timing adjustment and/or
Signal Optimization as a sole “improvement” to mitigate the impacts of site-generated traffic will not
be permitted.
7. Use the Manual on Uniform Traffic Control Devices for proposed full-movement signals to conduct
signal warrant analysis based upon a 13-hour turning movement count.
8. Use the Guidelines for Signalization of Intersections with Two or Three Approaches (ITRE report dated
December 31, 2017) where applicable, to determine possible signalization.
Home Office: Wilmington Regional Office: Serving the Southeast since 2002
119 Brookstown Ave. Suite PH1 1426 Navaho Trail, #108
Winston-Salem, NC 27101 Wilmington, NC 28409
Main: 336.744.1636; Fax: 336.458.9377 Main: 910.251.8912
Date Received by WMPO/NCDOT (to be completed by the Department): ________________________
Date Submitted by Applicant: October 31, 2024
Transportation Impact Analysis (TIA) Scoping
DAVENPORT Project Number 242034
Rainstorm Solutions
Castle Hayne, New Hanover County. NC
Description
3121 Castle Hayne Road, Castle Hayne, NC
Tax Parcel ID: R02519-001-012-000
R02519-001-018-000
Proposed Land Uses
Rainstorm Solutions
LUC 180 – 7,150 square feet
Flex Space*
LUC 180 – 13,500 square feet
LUC 822 – 13,500 square feet
LUC 932 – 4,500 square feet
*Up to 31,500 square feet of flex space is proposed. By the current zoning, restaurant uses may be no greater
than 3,000 square feet. While only 3,000 square feet is currently proposed, the TIA will consider 4,500 square
feet of restaurant space. If use restrictions are revised in the future, this will provide a conservative estimate of
the site’s trip generation. The remaining 27,000 square feet of flex space is split evenly between specialty trade
contractor offices and strip retail space.
Proposed Study Intersections
1.Castle Hayne Road (NC 133) at Swartville Road / Proposed Site Access
Proposed annual growth rate: 1%
Historical NCDOT AADT data shows an annual growth rate of approximately 0.4% on Castle Hayne Road. To
be conservative, a 1% growth rate will be used for the analysis.
Analysis Periods: Weekday, AM peak (7:00-9:00 am) and PM peak (4:00-6:00 pm)
TIA Analysis Scenarios
•2024 Existing Conditions
•2026 Future No Build Conditions
•2026 Future Build Conditions
•2026 Future Build Conditions with Improvements (as necessary)
Conceptual Site Plan and Aerial Map Attached
Page 2
Rainstorm Solutions
10/31/2024
DAVENPORT Project No. 242034
Home Office: Wilmington Regional Office: Serving the Southeast since 2002
119 Brookstown Ave. Suite PH1 1426 Navaho Trail, #108
Winston-Salem, NC 27101 Wilmington, NC 28409
Main: 336.744.1636; Fax: 336.458.9377 Main: 910.251.8912
Trip Generation Table
Table A - ITE Trip Generation 11th Edition
Average Weekday Driveway Volumes 24-Hour AM Peak Hour PM Peak Hour Two-Way
Land Use
ITE
Land
Use
Code
Size Method Volume Enter Exit Total Enter Exit Total
Rainstorm Solutions
Specialty
Trade
Contractor
180 7.15 kGFA Adjacent/
Rate* 70 9 3 12 4 10 14
Flex Space
Specialty
Trade
Contractor
180 13.5 kGFA Adjacent/
Rate* 133 17 5 22 8 18 26
Strip Retail
Plaza 822 13.5 kGLA Adjacent/
Rate 735 19 13 32 44 45 89
High-
Turnover
(Sit-Down)
Restaurant^
932 4.5 kGFA Generator/
Rate 482 35 27 62 38 36 74
Flex Space Subtotal 1,350 71 45 116 90 99 189
Total Unadjusted Trips 1,420 80 48 128 94 109 203
Internal Capture Reduction
LUC 822 - -2 -2 -4 -15 -11 -26
LUC 932 - -2 -2 -4 -11 -14 -25
Total Internal Capture Trips - -4 -4 -8 -26 -25 -51
Pass-By Reduction
LUC 932 (N/A AM, 43% PM) - - - - -16 -16 -32
Total Pass-By Trips - 0 0 0 -16 -16 -32
Total Adjusted (Primary) Trips 1,420 76 44 120 52 68 120
*Adjacent/Rate used in lieu of Adjacent/Local
^Note while the current zoning limits restaurant uses to 3,000-sf, the TIA considers 4,500-sf of restaurant
space to build a conservative trip generation in the event that use restrictions are revised
Proposed Site Trip Directional Distribution: to be completed and sent for approval after taking counts
Approved developments: N/A, unless advised otherwise
Committed Improvements: STIP project U-5863 proposes to widen Castle Hayne Road (NC 133) to a three-
lane section in the vicinity of the development. However, U-5863 is not currently funded so it will not be
included in the TIA.
FIGURE 1
CONCEPTUAL SITE PLAN
Rainstorm Solutions
Project Number 242034
FIGURE 2A
SITE LOCATION MAP SITE INDICATOR
SMITH
MOUNTAIN
LAKE
N
FIGURE 2B
VICINITY MAP
SITE INDICATOR
PROPOSED STUDY INTERSECTION
1
N
Project Name:Organization:
Project Location:Performed By:
Scenario Description:Date:
Analysis Year:Checked By:
Analysis Period:Date:
ITE LUCs1 Quantity Units Total Entering Exiting
Office 0
Retail 822 14 kGFA 32 19 13
Restaurant 932 5 kGFA 62 35 27
Cinema/Entertainment 0
Residential 0
Hotel 0
All Other Land Uses2 0
94 54 40
Veh. Occ.4 % Transit % Non-Motorized Veh. Occ.4 % Transit % Non-Motorized
Office 1.10 0% 0% 1.10 0% 0%
Retail 1.10 0% 0% 1.10 0% 0%
Restaurant 1.10 0% 0% 1.10 0% 0%
Cinema/Entertainment 1.10 0% 0% 1.10 0% 0%
Residential 1.10 0% 0% 1.10 0% 0%
Hotel 1.10 0% 0% 1.10 0% 0%
All Other Land Uses2 1.10 0%0%1.10 0%0%
Office Retail Restaurant Residential Hotel
Office
Retail
Restaurant
Cinema/Entertainment
Residential
Hotel
Office Retail Restaurant Residential Hotel
Office 0 0 0 0
Retail 0 2 0 0
Restaurant 0 2 0 0
Cinema/Entertainment 0 0 0 0 0
Residential 0 0 0 0
Hotel 0 0 0 0
Total Entering Exiting Land Use Entering Trips Exiting Trips
All Person-Trips 104 60 44 Office N/A N/A
Internal Capture Percentage 8%7%9%Retail 10%14%
Restaurant 5%7%
External Vehicle-Trips5 87 51 36 Cinema/Entertainment N/A N/A
External Transit-Trips6 0 0 0 Residential N/A N/A
External Non-Motorized Trips6 0 0 0 Hotel N/A N/A
Castle Hayne, NC
AM Street Peak Hour
DAVENPORT
DC
2026
10/11/2024
Estimation Tool Developed by the Texas A&M Transportation Institute - Version 2013.1
Table 5-A: Computations Summary Table 6-A: Internal Trip Capture Percentages by Land Use
2Total estimate for all other land uses at mixed-use development site is not subject to internal trip capture computations in this estimator.
5Vehicle-trips computed using the mode split and vehicle occupancy values provided in Table 2-A.
1Land Use Codes (LUCs) from Trip Generation Manual , published by the Institute of Transportation Engineers.
6Person-Trips
*Indicates computation that has been rounded to the nearest whole number.
3Enter trips assuming no transit or non-motorized trips (as assumed in ITE Trip Generation Manual ).
4Enter vehicle occupancy assumed in Table 1-A vehicle trips. If vehicle occupancy changes for proposed mixed-use project, manual adjustments must be made
to Tables 5-A, 9-A (O and D). Enter transit, non-motorized percentages that will result with proposed mixed-use project complete.
Table 2-A: Mode Split and Vehicle Occupancy Estimates
Table 4-A: Internal Person-Trip Origin-Destination Matrix*
Destination (To)Origin (From)
Origin (From)Destination (To)
Cinema/Entertainment
Land Use Entering Trips Exiting Trips
Table 3-A: Average Land Use Interchange Distances (Feet Walking Distance)
NCHRP 684 Internal Trip Capture Estimation Tool
Table 1-A: Base Vehicle-Trip Generation Estimates (Single-Use Site Estimate)
0
0
Cinema/Entertainment
Development Data (For Information Only )
0
0
0
Estimated Vehicle-Trips3
Land Use
Rainstorm Solutions
Project Name:
Analysis Period:
Veh. Occ. Vehicle-Trips Person-Trips* Veh. Occ. Vehicle-Trips Person-Trips*
Office 1.10 0 0 1.10 0 0
Retail 1.10 19 21 1.10 13 14
Restaurant 1.10 35 39 1.10 27 30
Cinema/Entertainment 1.10 0 0 1.10 0 0
Residential 1.10 0 0 1.10 0 0
Hotel 1.10 0 0 1.10 0 0
Office Retail Restaurant Residential Hotel
Office 0 0 0 0
Retail 4 2 2 0
Restaurant 9 4 1 1
Cinema/Entertainment 0 0 0 0 0
Residential 0 0 0 0
Hotel 0 0 0 0
Office Retail Restaurant Residential Hotel
Office 7 9 0 0
Retail 0 20 0 0
Restaurant 0 2 0 0
Cinema/Entertainment 0 0 0 0 0
Residential 0 4 8 0
Hotel 0 1 2 0
Internal External Total Vehicles1 Transit2 Non-Motorized2
Office 0 0 0 0 0 0
Retail 2 19 21 17 0 0
Restaurant 2 37 39 34 0 0
Cinema/Entertainment 0 0 0 0 0 0
Residential 0 0 0 0 0 0
Hotel 0 0 0 0 0 0
All Other Land Uses3 00 0 0 0 0
Internal External Total Vehicles1 Transit2 Non-Motorized2
Office 0 0 0 0 0 0
Retail 2 12 14 11 0 0
Restaurant 2 28 30 25 0 0
Cinema/Entertainment 0 0 0 0 0 0
Residential 0 0 0 0 0 0
Hotel 0 0 0 0 0 0
All Other Land Uses3 00 0 0 0 0
Land Use Table 7-A (D): Entering Trips
2Person-Trips
Person-Trip Estimates
Rainstorm Solutions
AM Street Peak Hour
Table 9-A (D): Internal and External Trips Summary (Entering Trips)
Table 8-A (O): Internal Person-Trip Origin-Destination Matrix (Computed at Origin)
Origin (From)Destination (To)
Cinema/Entertainment
Table 7-A: Conversion of Vehicle-Trip Ends to Person-Trip Ends
Table 7-A (O): Exiting Trips
0
0
0
Table 8-A (D): Internal Person-Trip Origin-Destination Matrix (Computed at Destination)
Origin (From)
Origin Land Use Person-Trip Estimates External Trips by Mode*
External Trips by Mode*
1Vehicle-trips computed using the mode split and vehicle occupancy values provided in Table 2-A
0
*Indicates computation that has been rounded to the nearest whole number.
0
0
0
0
0
Destination (To)
Cinema/Entertainment
0
3Total estimate for all other land uses at mixed-use development site is not subject to internal trip capture computations in this estimator
Destination Land Use
Table 9-A (O): Internal and External Trips Summary (Exiting Trips)
Project Name: Organization:
Project Location: Performed By:
Scenario Description:Date:
Analysis Year: Checked By:
Analysis Period:Date:
ITE LUCs1 Quantity Units Total Entering Exiting
Office 0
Retail 822 14 kGFA 89 44 45
Restaurant 932 5 kGFA 74 38 36
Cinema/Entertainment 0
Residential 0
Hotel 0
All Other Land Uses2 0
163 82 81
Veh. Occ.4 % Transit % Non-Motorized Veh. Occ.4 % Transit % Non-Motorized
Office 1.10 0% 0% 1.10 0% 0%
Retail 1.10 0% 0% 1.10 0% 0%
Restaurant 1.10 0% 0% 1.10 0% 0%
Cinema/Entertainment 1.10 0% 0% 1.10 0% 0%
Residential 1.10 0% 0% 1.10 0% 0%
Hotel 1.10 0% 0% 1.10 0% 0%
All Other Land Uses2 1.10 0% 0% 1.10 0% 0%
Office Retail Restaurant Residential Hotel
Office 4000 4000 4000
Retail 4000
Restaurant 4000
Cinema/Entertainment 4000
Residential 4000 4000
Hotel 4000
Office Retail Restaurant Residential Hotel
Office 0 0 0 0
Retail 0 12 0 0
Restaurant 0 16 0 0
Cinema/Entertainment 0 0 0 0 0
Residential 0 0 0 0
Hotel 0 0 0 0
Total Entering Exiting Land Use Entering Trips Exiting Trips
All Person-Trips 180 90 90 Office N/A N/A
Internal Capture Percentage 31% 31% 31% Retail 33% 24%
Restaurant 29% 40%
External Vehicle-Trips5 113 56 57 Cinema/Entertainment N/A N/A
External Transit-Trips6 0 0 0 Residential N/A N/A
External Non-Motorized Trips6 0 0 0 Hotel N/A N/A
1Land Use Codes (LUCs) from Trip Generation Manual , published by the Institute of Transportation Engineers.
2Total estimate for all other land uses at mixed-use development site is not subject to internal trip capture computations in this estimator.
3Enter trips assuming no transit or non-motorized trips (as assumed in ITE Trip Generation Manual ).
5Vehicle-trips computed using the mode split and vehicle occupancy values provided in Table 2-P.
Table 5-P: Computations Summary Table 6-P: Internal Trip Capture Percentages by Land Use
4Enter vehicle occupancy assumed in Table 1-P vehicle trips. If vehicle occupancy changes for proposed mixed-use project, manual adjustments must be
6Person-Trips
0
0
0
0
Table 4-P: Internal Person-Trip Origin-Destination Matrix*
Origin (From)Destination (To)
Cinema/Entertainment
0
Table 3-P: Average Land Use Interchange Distances (Feet Walking Distance)
Origin (From)Destination (To)
Cinema/Entertainment
NCHRP 684 Internal Trip Capture Estimation Tool
Rainstorm Solutions DAVENPORT
Castle Hayne, NC DC
*Indicates computation that has been rounded to the nearest whole number.
Estimation Tool Developed by the Texas A&M Transportation Institute - Version 2013.1
10/11/2024
2026
PM Street Peak Hour
Table 1-P: Base Vehicle-Trip Generation Estimates (Single-Use Site Estimate)
Land Use Development Data (For Information Only )Estimated Vehicle-Trips3
Table 2-P: Mode Split and Vehicle Occupancy Estimates
Land Use Entering Trips Exiting Trips
Project Name:
Analysis Period:
Veh. Occ. Vehicle-Trips Person-Trips* Veh. Occ. Vehicle-Trips Person-Trips*
Office 1.10 0 0 1.10 0 0
Retail 1.10 44 48 1.10 45 50
Restaurant 1.10 38 42 1.10 36 40
Cinema/Entertainment 1.10 0 0 1.10 0 0
Residential 1.10 0 0 1.10 0 0
Hotel 1.10 0 0 1.10 0 0
Office Retail Restaurant Residential Hotel
Office 0 0 0 0
Retail 1 15 1 3
Restaurant 1 16 1 3
Cinema/Entertainment 0 0 0 0 0
Residential 0 0 0 0
Hotel 0 0 0 0
Office Retail Restaurant Residential Hotel
Office 0 0 0 0
Retail 0 12 0 0
Restaurant 0 24 0 0
Cinema/Entertainment 0 2 1 0 0
Residential 0 0 1 0
Hotel 0 1 2 0
Internal External Total Vehicles1 Transit2 Non-Motorized2
Office 0 0 0 0 0 0
Retail 16 32 48 29 0 0
Restaurant 12 30 42 27 0 0
Cinema/Entertainment 0 0 0 0 0 0
Residential 0 0 0 0 0 0
Hotel 0 0 0 0 0 0
All Other Land Uses3 000 0 0 0
Internal External Total Vehicles1 Transit2 Non-Motorized2
Office 0 0 0 0 0 0
Retail 12 38 50 35 0 0
Restaurant 16 24 40 22 0 0
Cinema/Entertainment 0 0 0 0 0 0
Residential 0 0 0 0 0 0
Hotel 0 0 0 0 0 0
All Other Land Uses3 000 0 0 0
0
0
3
0
0
3Total estimate for all other land uses at mixed-use development site is not subject to internal trip capture computations in this estimator
Table 9-P (O): Internal and External Trips Summary (Exiting Trips)
Origin Land Use Person-Trip Estimates External Trips by Mode*
Person-Trip Estimates External Trips by Mode*
0
Table 8-P (D): Internal Person-Trip Origin-Destination Matrix (Computed at Destination)
Origin (From)
2Person-Trips
0
0
Table 9-P (D): Internal and External Trips Summary (Entering Trips)
Destination Land Use
*Indicates computation that has been rounded to the nearest whole number.
Rainstorm Solutions
PM Street Peak Hour
Table 7-P: Conversion of Vehicle-Trip Ends to Person-Trip Ends
Land Use Table 7-P (D): Entering Trips Table 7-P (O): Exiting Trips
Table 8-P (O): Internal Person-Trip Origin-Destination Matrix (Computed at Origin)
Origin (From)Destination (To)
Destination (To)
Cinema/Entertainment
Cinema/Entertainment
0
2
1Vehicle-trips computed using the mode split and vehicle occupancy values provided in Table 2-P
Year
Castle Hayne Road (NC
133) south of Swartville
Road
2003 15000
2004
2005
2006
2007 14000
2008
2009 12000
2010
2011 12000
2012
2013 12000
2014
2015 13000
2016
2017 13500
2018
2019 13500
2020
2021 14500
2022
2023 16000
Slope from
trendline (veh/yr)61.15
% Growth 0.38%
Table - Study Area AADT Information (veh/day)
y = 61.147x ‐109588
0
2,000
4,000
6,000
8,000
10,000
12,000
14,000
16,000
18,000
2002 2004 2006 2008 2010 2012 2014 2016 2018 2020 2022 2024
Av
e
r
a
g
e
D
a
i
l
y
T
r
a
f
f
i
c
Average Annual Daily Traffic Castle Hayne Road (NC 133) south o
Linear (Castle Hayne Road (NC 133)