HomeMy WebLinkAboutReports - Transportation Impact Study - 10/21/2025HARMONY LAKES|TRANSPORTATION IMPACT STUDY
City of Fort Collins
Rollins Consult LLC
Prepared for:
Serfer Land LLC
Transportation Impact Study
Harmony Lakes
October 21, 2025
Harmony Lakes Rollins Consult LLC | 2 October 21, 2025
Table of Contents
Page
1 Introduction ….……..…………………………………………………………...……4
2 Existing Conditions ……………………………………………..…..….…………...8
3 Project Travel Demand……………………………………………………..……….16
4 Future Traffic Projections…………………………………………..……………....21
5 Traffic Impact Analysis……………………………………………...………………28
6 Conclusions………………………………………………………….………………..33
Appendices……….…………………………………………………………………….…34
Appendix A: Intersection Turning Movement Count Data
Appendix B: Level of Service Worksheets
Appendix C: LCUASS Left and Right-Turn Criteria Unsignalized Intersections
List of Figures
1 Project Location……………..………………………...…………………………….…5
2 Site Plan …………………………………………………………………………………6
3 Existing Peak Hour Traffic Volumes……………………………………………....10
4 Existing Lane Configurations……………………………………………………....11
5 Trip Distribution 2030……………………………………………….….....…………18
6 Trip Distribution 2045….……………………………………………….….....…..…19
7 Project Traffic - 2030.......................…………....................................................20
8 Project Traffic - 2045 .........................................................................................21
9 Background Traffic 2030 ………...........……………….….………..….....…..…...23
10 Background Traffic 2045…………………………………………………………….25
11 Total Traffic 2030…………………………………………………………………..…26
12 Total Traffic 2045…………………………………….……………………………….27
13 2045 Intersection Configuration……..…………………..…………………….…..32
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List of Tables
1 Intersection Level of Service Thresholds .......................................................12
2 Signalized Intersection Level of Service Definitions......................................13
3 Unsignalized Intersection Level of Service Definitions……………....……….14
4 Existing Intersection Level of Service……....................................….…...…....15
5 Estimated Trip Generation ………………………………....……………………....17
6 Future 2030 Intersection Level of Service………...................….……………..29
7 Future 2045 Intersection Level of Service……………………………………….30
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1 INTRODUCTION
This report documents the results of a study to evaluate the potential traffic impacts of
the proposed Harmony Lakes, in the City of Fort Collins. Rollins Consult LLC conducted
the study as required for the project’s development application.
PROJECT DESCRIPTION
The proposed Harmony Lakes project is in south Fort Collins. The project is located
south of Harmony Road and west of I-25. The project is to the south of the Harmony
Road Transportation Transfer Center. Figure 1 illustrates the project location and study
area. The site is currently occupied by a landscaping business and a gas
station/convenience store.
The project site is depicted on Figure 2. The project will be developed in several
phases, the initial phase will include a 20 pump gas station, convenience store, and fast
food restaurant. The following phase of development could include several land uses
such as commercial and hotel. Access to the site would be located off of Harmony Road
with a future connection to Strauss Cabin Road to the west.
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Figure 1 – Project Location
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Figure 2 – Site Plan
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STUDY SCOPE
The scope of work for this study was developed with the City of Fort Collins staff. The
base assumptions, technical methodologies, and geographic coverage of the study were
all identified as part of the study approach. The study analyzes the potential project-
generated traffic impacts on the adjacent street system.
The study evaluates the transportation system after the completion of the proposed
project for both the short range (2030) and long range (2045) conditions. The following
transportation scenarios were analyzed for the AM and PM peak hours:
• Existing Conditions – The analysis of existing traffic conditions provides a basis
for the remainder of the study. The existing transportation system is described.
Peak hour intersection operations are evaluated.
• Project Travel Demand – The traffic generated by the Project will be estimated,
distributed, and assigned to the transportation network.
• Future Background Conditions – Future traffic conditions are projected without
the proposed Project for the buildout years 2030 and 2045. The traffic volumes
on the roadway system will be factored and analyzed to reflect conditions for
these future years. This analysis will include the consideration of traffic from
other projects.
• Total Future Conditions – The traffic associated with the Project will be added
to the Background traffic for years 2030 and 2045. The intersection operations
will be determined.
• Auxiliary Lanes – The need for left-turn and right-turn lanes at the project
access points will be evaluated.
The study examined four existing intersections and three planned intersections within
the study area. These were identified by the City of Fort Collins for inclusion in the
study. The study intersections are listed below.
1. Strauss Cabin Road at Harmony Road
2. W Frontage Road at Harmony Road
3. I-25 SB Ramps at Harmony Road
4. I-25 NB Ramps at Harmony Road
5. W Frontage Road at the North Big D Driveway (future)
6. W Frontage Road at the South Big D Driveway (future)
7. W Frontage Road at the South Street (future)
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2 EXISTING CONDITIONS
The transportation system has numerous elements that are described in this chapter.
The roadway network and traffic volume information are presented for the study
intersections.
ADJACENT LANDUSE
The Project site is located south of Harmony Road and west of I-25. To the north of the
site is the Harmony Road Transportation Transfer Center. To the east is I-25 and to the
south is undeveloped land. West of the site is the proposed H25 apartment site. The
site is currently occupied with an 8 pump gas station/convenience store and a
landscaping business.
TRANSPORTATION NETWORK
The primary roadways that serve the Project site are described below. Roadway
designations were provided in the Master Street Plan for City of Fort Collins, adopted
April 7, 2020.
Roadway Network
Harmony Road – This road is an east/west major arterial street that provides six
travel lanes. Harmony Road provides connections throughout Fort Collins and east to
Timnath and Windsor. There are sidewalks and bicycle lanes on both sides of the
road. The speed limit is posted at 45 mph in the eastbound direction adjacent to the
project site and I-25. The speed limit west of the site is 55 mph. There are left-turn
lanes from Harmony Road at each of the study intersections.
W Frontage Road – This is a local north/south two-lane road that serves the existing
uses at the project site and the Harmony Road Transportation Transfer Center on the
north side. There are sidewalks along the north side of the road adjacent to the
Transfer Center.
Strauss Cabin Road – This north/south two-lane road is classified as an arterial
street. It provides connections between Horsetooth Road on the north to Kechter
Road on the south. To the south of Harmony Road there are bike lanes on both sides.
Sidewalks are present on the west side and are planned for the east side with the H25
apartment project. There is no speed limit posted in this section. North of Harmony
Road, this two-lane road has a rural cross section. There are bike lanes on both sides
near the intersection with Harmony Road. No sidewalks are present. The speed limit
is posted at 35 mph
I-25 Ramps - Harmony Road provides a full diamond interchange with I-25 with a
bridge over the interstate. Both ramps are signalized.
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EXISTING TRAFFIC CONDITIONS
Existing intersection operations were evaluated for both the morning and evening peak
hours. Intersection count data was collected in August of 2025, when school was in
session. These counts were performed at four of the existing study intersections.
Appendix A includes the intersection turning movement. The resulting peak hour turning
movement volumes are provided on Figure 3. The current lane configurations of the
study intersections are shown on Figure 4.
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Figure 3 – Existing Peak Hour Traffic Volumes
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Figure 4 – Existing Lane Configurations
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Intersection Level of Service Analysis Methodologies
Transportation professionals evaluate intersections to determine how they are currently
operating and will operate in the future. The methods employed can be found in the
Transportation Research Board’s, 6th Edition, 2016 Highway Capacity Manual (HCM).
Level of service (LOS) is based on a “graded” system from LOS A, with very little to no
delays to LOS F which represents excessive delays and congestion. Table 1 provides
the thresholds for acceptable levels of service. The table is from the Larimer County
Urban Area Street Standards (LCUASS), August 1, 2021.
Table 1
Intersection Level of Service Thresholds
Signalized Intersection
Peak hour levels of motor vehicle delay at signalized intersections were estimated using
methods provided in the HCM. This operations analysis method uses various
intersection characteristics (such as traffic volumes, lane geometry, and signal phasing)
to estimate the average control delay experienced by motorists traveling through an
intersection. Table 2 summarizes the relationship between the average control delay per
vehicle and LOS for signalized intersections.
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Table 2 Signalized Intersection Level of Service Definitions
Level of
Service
Average Control
Delay Per Vehicle
(Seconds) Description
A 10.0
Free Flow or Insignificant Delays: Operations with very low delay,
when signal progression is extremely favorable, and most vehicles
arrive during the green light phase. Most vehicles do not stop at all.
B >10.0 and 20.0
Stable Operation or Minimal Delays: Generally, occurs with good signal
progression and/or short cycle lengths. More vehicles stop than with
LOS A, causing higher levels of average delay. An occasional
approach phase is fully utilized.
C >20.0 and 35.0
Stable Operation or Acceptable Delays: Higher delays resulting from fair
signal progression and/or longer cycle lengths. Drivers begin having to
wait through more than one red light. Most drivers feel somewhat
restricted.
D >35.0 and 55.0
Approaching Unstable or Tolerable Delays: Influence of congestion
becomes more noticeable. Longer delays result from unfavorable
signal progression, long cycle lengths, or high volume to capacity
ratios. Many vehicles stop. Drivers may have to wait through more
than one red light. Queues may develop, but dissipate rapidly, without
excessive delays.
E >55.0 and 80.0
Unstable Operation or Significant Delays: Considered to be the limit of
acceptable delay. High delays indicate poor signal progression, long
cycle lengths, and high volume to capacity ratios. Individual cycle
failures are frequent occurrences. Vehicles may wait through several
signal cycles. Long queues form upstream from intersection.
F >80.0
Forced Flow or Excessive Delays: Occurs with oversaturation when
flows exceed the intersection capacity. Represents jammed conditions.
Many cycle failures. Queues may block upstream intersections.
Source: Transportation Research Board, Highway Capacity Manual, 2016.
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Unsignalized Intersection
Peak hour levels of motor vehicle delay at unsignalized intersections were estimated
using the method from Chapter 17 of the 2016 Highway Capacity Manual. The delays
for the entire intersection and the movement and/or approach are determined. Table 3
summarizes the relationship between the average control delay per vehicle and LOS for
unsignalized intersections.
Table 3 Unsignalized Intersection Level of Service Definitions
Level of
Service
Average Control
Delay Per Vehicle
(Seconds) Description
A 10.0 No delay for stop-controlled approaches.
B 10.0 and 15.0 Operations with minor delay.
C >15.0 and 25.0 Operations with moderate delays.
D >25.0 and 35.0 Operations with increasingly unacceptable
delays.
E >35.0 and 50.0 Operations with high delays, and long queues.
F >50.0
Operations with extreme congestion, and with
very high delays and long queues unacceptable
to most drivers.
Source: Transportation Research Board, Highway Capacity Manual, 2016
Existing Intersection Conditions
Using the HCM methodology, the weekday AM, and PM peak hour intersection
operations were determined. The results are provided in Table 4. As indicated in Table
4, several of the movements on Harmony Road are operating with long delays. The
detailed analysis worksheets are provided in Appendix B.
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Table 4 Existing Intersection Level of Service
#
Intersection Overall Movement AM Peak
PM Peak
1 Strauss Cabin Rd at Harmony Rd
Signal
Overall C C
EB LT E E
EB T C F
EB RT A A
WB LT D D
WB T F A
WB RT A A
NB LT C C
NB T C D
NB RT B B
SB LT C C
SB T C C
SB RT C C
2 W Frontage Rd at Harmony Rd
Signal
Overall A B
EB LT E D
EB T/RT A F
WB LT E E
WB T/RT B B
NB LT C C
NB T/RT C C
SB LT/T C C
SB RT C C
3 I-25 SB Ramps at Harmony Rd
Signal
Overall E C
EB T D F
EB RT F F
WB LT D F
WB T D D
SB LT/T C C
SB RT D D
4 I-25 NB Ramps at Harmony Rd
Signal
Overall C C
EB LT D D
EB T A F
WB T C D
WB RT C D
NB LT/T C C
NB RT C C
1. LOS calculations performed using Synchro which is based on the Transportation Research Board HCM 2016.
2. LOS is reported for both overall intersection and each constrained STOP-controlled movement or approach.
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3 PROJECT TRAVEL DEMAND
This chapter provides an overview of the project and a description of the travel demand
methodology to estimate vehicle trip generation, distribution, and assignment of project-
generated traffic along area roadways and intersections.
PROJECT CHARACTERISTICS
The proposed Harmony Lakes project includes a combination of 20 fueling position gas
station, 7,900 square foot convenience store, and a 2,900 square foot fast food
restaurant for the initial phase. Future phases could include a potential mixture of office,
commercial and hotel uses. The transportation analysis was conducted assuming a 110
room hotel and 58,000 square feet of commercial. The project site plan is depicted on
Figure 2. As shown on the figure, vehicular access to the project will be from Harmony
Road and in the future from Strauss Cabin Road.
PROJECT TRIP GENERATION
The trip generation characteristics of the project were estimated using existing data and
the Institute of Transportation Engineers (ITE) Trip Generation Manual, 121h Edition.
The trip generation for the initial phase was estimated based on the following:
• Counts at the current 8 fueling position gas station and 1,200 square foot
convenience store were conducted.
• The current use was factored upward to represent a 20 fueling position gas
station and a 3,000 square foot convenience store.
• The proposed convenience store is 7,900 square feet. Trips for the additional
4,900 square of convenience store were estimated based on ITE trip generation
rates (land use code 851).
• The fast food was estimated using ITE trip generation rates for fast food without
a drive thru (land use code 933).
• The 4,900 square foot convenience store and fast food were assumed to have an
internal capture of 25 percent.
• The pass-by trips associated with the gas station, convenience store and fast
food were assumed to be 50%. This is based on data from the ITE Trip
Generation Handbook, 3rd edition. The pass-by percentages range from 45 to 93
percent.
For the future uses, it was assumed that the site could develop with a 110 room hotel
and 58,000 square feet of commercial. It should be noted that no internal capture or
pass-by trips were taken for these future used.
Table 5 provides the trip generation estimated for the full buildout of the Harmony Lakes
development. As indicated in the table, the full buildout is estimated to generate
approximately 9,866 daily trips, 587 morning, and 731 evening peak hour trips. These
trips do not include the pass-by reductions.
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Table 5 – Estimated Trip Generation
Based on ITE Trip Generation 12th Edition and data collected at existing gas station/convenience store
PROJECT TRIP DISTRIBUTION | ASSIGNMENT
The distribution of the project traffic onto the roadway system was based on the location
of the project in northern Colorado, the current travel patterns, and input from City staff.
The project trip distribution is depicted on Figures 5 and 6 for 2030 and 2045,
respectively. The trip estimates were assigned to the roadway network based on this
distribution. The resulting peak hour traffic associated with the initial phase of the is
shown on Figure 7. The peak hour traffic for full buildout of the Harmony Lakes project
is provided on Figure 8. The assignment does account for the pass-by trips associated
with the gas station, convenience store, and fast food restaurant.
IN Out Total IN Out Total
5,603 218 239 457 210 212 421
Hotel 312 Rooms 110.00 471 15 23 37 19 15 34
Commercial 821 KSF 58.0 3,792 57 36 92 135 141 276
9,866 290 298 587 364 368 731
Proposed Gas/Convenience/Fast
Food Custom
Total
Land Use/ITE Code/Size
Project Trip Generation
Daily AM PM
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Figure 5 – Trip Distribution 2030
40%
15%
20%
10%
15%
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Figure 6 – Trip Distribution 2045
35%
20%
5%
15%
10% 15%
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Figure 7 – Project Traffic - 2030
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Figure 8 – Project Traffic - 2045
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4 FUTURE TRAFFIC PROJECTIONS
Estimates of future traffic conditions both with and without the proposed Harmony Lakes
were necessary to evaluate the potential impact of the project on the local street system.
The background base traffic scenario represents future traffic conditions without the
addition of the project, while the total scenario represents future traffic conditions with
the completion of the proposed project. These projections were developed for the years
2030 and 2045. The development of these future traffic scenarios is described in this
chapter.
BACKGROUND 2030 TRAFFIC PROJECTIONS
The background 2030 traffic projections reflect growth in traffic from two primary
sources: ambient growth in the existing traffic volumes due to regional growth both in
and outside of the study area, and consideration of traffic generated by nearby planned
projects. Each of these elements is described below.
• The areawide/ambient growth in traffic was assumed to be reflected by an
annual growth of 1% per year. This is based on previous growth trends observed
by the City of Fort Collins.
• The future traffic related to the other proposed projects was added to the
background traffic. The trips associated with these projects were provided in
their respective traffic studies. The following project was included:
o Completion of the initial phase of the H25 project. Information was
obtained from the Harmony 25 Multi-family transportation Impact Study,
prepared by Delich Associates, February 2020.
The resulting Background 2030 traffic projections for the study intersections are provided
on Figure 9.
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Figure 9 – Background Traffic 2030
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City of Fort Collins
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BACKGROUND 2045 TRAFFIC PROJECTIONS
The background 2045 traffic projections were developed based on the same method
described for the 2030 projections. The previously mentioned development of H25 was
assumed to be fully built out. A connection between Strauss Cabin Road and the W
Frontage Road was assumed. The resulting Background 2045 traffic projections for the
study intersections are provided on Figure 10.
TOTAL TRAFFIC PROJECTIONS
The total traffic projections include both the background plus project traffic. The full buildout
of the Harmony Lakes project-generated traffic volumes from Figure 7 was added to the
2030 background traffic volumes illustrated on Figure 9 to develop background plus project
peak hour traffic volumes. The resulting 2030 total traffic is depicted on Figure 11. The total
2045 traffic was developed by adding the project-generated traffic from Figure 8 to the
background traffic on Figure 10. The total 2045 projected traffic is shown on Figure 12.
ADDITIONAL TURN LANES
The need for left-turn and right-turn lanes at both access locations and at the study
intersections was performed for both 2030 and 2045 total traffic conditions. At signalized
intersections, the intersection operations were used to determine the required laned. The
guidelines from Figure 8-4 in LCUASS (provided in Appendix D) were applied at
unsignalized intersections. Using these criteria, it was determined that the following lanes
are recommended.
Year 2030
• An eastbound right-turn lane on Harmony Road at W Frontage Road.
For year 2045
• Dual northbound left-turn lanes and a shared through/right-turn lane on the W
Frontage Road at Harmony Road.
• Dual westbound left-turn lanes on Harmony Road at the W Frontage Road.
• A southbound left-turn lane on W Frontage Road at the North Big D
Driveway. Although this meets the volume thresholds, a lane is not
recommended due to the operations analysis indicating very low delays for
this movement.
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City of Fort Collins
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Figure 10 – Background Traffic 2045
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City of Fort Collins
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Figure 11 – Total Traffic 2030
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City of Fort Collins
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Figure 12 – Total Traffic 2045
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City of Fort Collins
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5 TRAFFIC IMPACT ANALYSIS
This chapter presents an analysis of the potential impacts of the traffic generated by the
proposed Harmony Lakes project on the local street system. The analysis compares the
projected levels of service at each study intersection under future background and total
conditions to estimate the incremental increase in the level of service caused by the
proposed Project. This provides the information needed to assess the potential impact of the
Project using the acceptable operations criteria. The future traffic projections at the seven
study intersections were analyzed to determine their operating conditions for years 2030
and 2045.
FUTURE 2030 TRAFFIC CONDITIONS
The results of the intersection operations analysis for year 2030 are provided in Table 6 for
both the background and total traffic scenarios. The study results, shown in Table 6,
indicate that the future 2030 operations are anticipated to operate with long delays for some
movements on Harmony Road similar to existing conditions.
FUTURE 2045 CONDITIONS AND IMPROVEMENTS
The 2045 analysis results are provided in Table 7. Under total traffic conditions, the
proposed project related improvements were included in the analysis. The results indicate
that the intersections will operate at acceptable levels, with exceptions for Harmony Road.
Similar to 2030 conditions, several movements on Harmony Road will experience long
delays. The overall intersection operations on Harmony Road at both Strauss Cabin Road
and the W Frontage Road will operate at LOS E. This is due to overall growth in traffic
along Harmony Road. The 2045 intersection configuration is provided on Figure 13.
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City of Fort Collins
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Table 6 Future 2030
Intersection Level of Service
# Intersection Overall
Movement
AM Peak
PM Peak
Background Total Background Total
1
Strauss Cabin Rd at Harmony
Rd
Signal
Overall C C C C
EB LT E E F F
EB T C C F F
EB RT A A A A
WB LT D D F F
WB T F F A A
WB RT A A A A
NB LT C C D D
NB T C D D D
NB RT B B C C
SB LT C C D D
SB T C C D D
SB RT C C D D
2 W Frontage Rd at Harmony Rd
Signal
Overall B C B B
EB LT E E E E
EB T A A F F
EB RT - A - A
WB LT E D E E
WB T/RT F F B B
NB LT C D C D
NB T/RT C C C D
SB LT/T C C C D
SB RT C C C D
3 I-25 SB Ramps at Harmony Rd
Signal
Overall D D C C
EB T D D F F
EB RT F F B B
WB LT D D E E
WB T B B A A
SB LT/T C C D D
SB RT D D D D
4 I-25 NB Ramps at Harmony Rd
Signal
Overall C C C C
EB LT D D D D
EB T A A F F
WB T D D D D
WB RT C C D D
NB LT/T C C C C
NB RT C C D D
5
W Frontage Rd at North Big D
Driveway
T-Stop
Overall - A - A
WB Approach - A - A
SB LT - A - A
1. LOS calculations performed using Synchro which is based on the Transportation Research Board HCM 2016.
2. LOS is reported for both overall intersection and each constrained STOP-controlled movement or approach.
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
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Table 7 Future 2045
Intersection Level of Service
# Intersection Overall
Movement
AM Peak
PM Peak
Background Total Background Total
1 Strauss Cabin Rd at Harmony Rd
Signal
Overall E E D D
EB LT E E F F
EB T C C F F
EB RT A A A A
WB LT D D E E
WB T F F A A
WB RT A A A A
NB LT D E E E
NB T D D E E
NB RT B C D D
SB LT C C E E
SB T D D E E
SB RT D D D D
2 W Frontage Rd at Harmony Rd
Signal
Overall E E D D
EB LT E E E E
EB T C C F F
EB RT - C - A
WB LT D E E E
WB T/RT F F C C
NB LT D D D D
NB T/RT D D D E
SB LT/T D D D E
SB RT D D D E
3 I-25 SB Ramps at Harmony Rd
Signal
Overall E E E E
EB T E E F F
EB RT F F F F
WB LT E E F F
WB T B B A A
SB LT/T C D D D
SB RT E E E E
4 I-25 NB Ramps at Harmony Rd
Signal
Overall C D E E
EB LT E E E E
EB T B B F F
WB T D D D D
WB RT C C D D
NB LT/T D D D D
NB RT C D F F
1. LOS calculations performed using Synchro which is based on the Transportation Research Board HCM 2016.
2. LOS is reported for both overall intersection and each constrained STOP-controlled movement or approach.
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
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Table 7 Future 2045 (continued)
Intersection Level of Service
# Intersection Overall
Movement
AM Peak
PM Peak
Background Total Background Total
5
W Frontage Rd at North Big D
Driveway
T-Stop Control
Overall - A - A
NB LT - A - A
EB Approach - D - E
WB Approach - D - B
SB LT - A - A
6 W Frontage Rd at South Big D
T-Stop Control
Overall - A - A
NB LT - A - A
EB Approach - A - B
WB Approach - A - A
SB LT - A - A
7 W Frontage Rd South St
All-Way Stop Control
Overall - A - A
EB Approach - A - A
WB Approach - A - A
SB Approach - A - A
1. LOS calculations performed using Synchro which is based on the Transportation Research Board HCM 2016.
2. LOS is reported for both overall intersection and each constrained STOP-controlled movement or approach.
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
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Figure 13 – 2045 Intersection Configuration
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City of Fort Collins
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6 CONCLUSIONS
This study was undertaken to analyze the potential traffic impacts of the proposed Harmony
Lakes project in the City of Fort Collins. The following summarizes the results of this
analysis:
• The Harmony Lakes project was analyzed with a combination of 20 fueling pump gas
station, 7,900 square foot convenience store, and a 2,900 square foot fast food
restaurant for the initial phase. For purposes of the transportation study the full
buildout was modeled with a 110 room hotel and 58,000 square feet of commercial.
• The project is located south of Harmony Road and west of I-25. The site is currently
occupied by an 8 fueling pump gas station/convenience store and a landscaping
business.
• The estimated future full buildout trips are 9,866 daily, 587 morning, and 731 evening
peak hour trips.
• The project will have access to Harmony Road for the initial phase and also to
Strauss Cabin Road with full buildout.
• Currently, the study intersections operate at acceptable levels, except for many
movements on Harmony Road which have high delays.
• The future 2030 conditions, the intersections will continue to operate at levels similar
to existing conditions.
• Under 2030 conditions the following improvements are recommended to be
completed by the Harmony Lakes project.
o An eastbound right-turn lane on Harmony Road at the W Frontage Road
• The background and total 2045 conditions, the study intersections will operate at
levels of service which reflect high delays on Harmony Road and on the I-25 ramps.
This is due to growth in Fort Collins, Timnath and northern Colorado.
• The project will improve the intersection of the W Frontage Road at Harmony Road
with the following improvements
o Dual northbound left-turn lanes and a shared through/right-turn lane
o Dual westbound left-turn lanes on Harmony Road
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
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APPENDICIES
▪ Appendix A: Intersection Turning Movement Count Data
▪ Appendix B: Level of Service Worksheets
▪ LCUASS Left-turn and Right-Turn Thresholds at Unsignalized Intersections
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City of Fort Collins
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APPENDIX A – Intersection Turning
Movement Count Data
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 36 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 37 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 38 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 39 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 40 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 41 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 42 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 43 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 44 October 21, 2025
APPENDIX B – Level of Service
Worksheets
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 45 October 21, 2025
Existing
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 46 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 47 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 48 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 49 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 50 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 51 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 52 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 53 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 54 October 21, 2025
Background 2030
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 55 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 56 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 57 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 58 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 59 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 60 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 61 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 62 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 63 October 21, 2025
Total 2030
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 64 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 65 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 66 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 67 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 68 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 69 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 70 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 71 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 72 October 21, 2025
Background 2045
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 73 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 74 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 75 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 76 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 77 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 78 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 79 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 80 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 81 October 21, 2025
Total 2045
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 82 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 83 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 84 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 85 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 86 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 87 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 88 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 89 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 90 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 91 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 92 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 93 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 94 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 95 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 96 October 21, 2025
APPENDIX C – LCUASS Left and Right-
Turn Criteria Unsignalized Intersections
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City of Fort Collins
Harmony Lakes Rollins Consult LLC | 97 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 98 October 21, 2025
HARMONY LAKES | TRANSPORTATION IMPACT STUDY
City of Fort Collins
Harmony Lakes Rollins Consult LLC | 99 October 21, 2025