HomeMy WebLinkAboutTHE RETREAT AT FORT COLLINS (FORMERLY REDWOOD STREET MULTI-FAMILY) - PDP - PDP180002 - SUBMITTAL DOCUMENTS - ROUND 1 - TRAFFIC STUDYDELICH Retreat at Fort Collins TIS, March 2018
ASSOCIATES
TABLE OF CONTENTS
I. INTRODUCTION ........................................................................................................ 1
II. EXISTING CONDITIONS .......................................................................................... 2
Land Use ......................................................................................................................... 2
Streets ............................................................................................................................. 2
Existing Traffic ................................................................................................................. 6
Existing Operation ........................................................................................................... 6
Pederstrian Facilities ....................................................................................................... 6
Bicycle Facilities .............................................................................................................. 9
Transit Facilities .............................................................................................................. 9
III. PROPOSED DEVELOPMENT ............................................................................... 10
Trip Generation ............................................................................................................. 10
Trip Distribution ............................................................................................................. 12
Background Traffic Projections ..................................................................................... 12
Trip Assignment ............................................................................................................ 12
Signal Warrants ............................................................................................................. 12
Operation Analysis ........................................................................................................ 19
Vine/Lemay Adequate Public Facilities ......................................................................... 24
Geometry ...................................................................................................................... 29
Pedestrian Level of Service ........................................................................................... 29
Bicycle Level of Service ................................................................................................ 29
Transit Level of Service ................................................................................................. 29
IV. CONCLUSIONS .................................................................................................... 32
LIST OF TABLES
1. Current Peak Hour Operation .................................................................................... 8
2. Trip Generation ....................................................................................................... 10
3. Short Range (2022) Background Peak Hour Operation .......................................... 20
4. Long Range (2040) Background Peak Hour Operation ........................................... 22
5. Short Range (2022) Total Peak Hour Operation ..................................................... 25
6. Long Range (2040) Total Peak Hour Operation ...................................................... 27
DELICH Retreat at Fort Collins TIS, March 2018
ASSOCIATES
LIST OF FIGURES
1. Site Location ............................................................................................................. 3
2. Existing Geometry ..................................................................................................... 4
3. Recent Peak Hour Traffic .......................................................................................... 7
4. Site Plan .................................................................................................................. 11
5. Trip Distribution ....................................................................................................... 13
6. Short Range (2022) Background Peak Hour Traffic ................................................ 14
7. Long Range (2040) Background Peak Hour Traffic ................................................. 15
8. Site Generated Peak Hour Traffic ........................................................................... 16
9. Short Range (2022) Total Peak Hour Traffic ........................................................... 17
10. Long Range (2040) Total Peak Hour Traffic ............................................................ 18
11. Short Range (2022) Geometry ................................................................................ 30
12. Long Range (2040) Geometry ................................................................................. 31
APPENDICES
A. Base Assumptions Form
B. Peak Hour Traffic Counts
C. Current Peak Hour Operation/Level of Service Descriptions/Fort Collins Motor
Vehicle LOS Standards (Intersections)
D. Signal Warrants
E. Short Range (2022) Background Peak Hour Operation
F. Long Range (2040) Background Peak Hour Operation
G. Short Range (2022) Total Peak Hour Operation
H. Long Range (2040) Total Peak Hour Operation
I. Fort Collins Code pertaining to APF
J. Pedestrian/Bicycle Level of Service Worksheets
DELICH Retreat at Fort Collins TIS, March 2018
ASSOCIATES Page 1
I. INTRODUCTION
This transportation impact study (TIS) addresses the capacity, geometric, and
control requirements at and near the proposed Retreat at Fort Collins development. The
proposed Retreat at Fort Collins is located in the northeast quadrant of the
Suniga/Redwood intersection in Fort Collins, Colorado.
During the course of the analysis, numerous contacts were made with the owner
(Retreat at Fort Collins, LLC), the project engineers (Northern Engineering and W & R
Engineering)), the project planner (Ripley Design), and the City of Fort Collins Traffic
Operations staff. The Transportation Impact Study Base Assumptions form and related
documents are provided in Appendix A. This study generally conforms to the format set
forth in the Fort Collins TIS Guidelines in the “Larimer County Urban Area Street
Standards” (LCUASS). Due to the trip generation, this is a full transportation impact study.
The study involved the following steps:
- Collect physical, traffic, and development data;
- Perform trip generation, trip distribution, and trip assignment;
- Determine peak hour traffic volumes;
- Conduct capacity and operational level of service analyses on key intersections;
- Analyze signal warrants;
- Conduct level of service evaluation of pedestrian, bicycle, and transit modes of
transportation
DELICH Retreat at Fort Collins TIS, March 2018
ASSOCIATES Page 2
II. EXISTING CONDITIONS
The location of the Retreat at Fort Collins development is shown in Figure 1. It is
important that a thorough understanding of the existing conditions be presented.
Land Use
Land uses in the area are primarily residential and vacant/open. There are
residential uses to the south, west, and north of the site. The proposed Northfield
development is to the east of the site. The proposed Retreat at Fort Collins site is
currently vacant. The center of Fort Collins lies to the south of the proposed Retreat at
Fort Collins.
Streets
The primary streets near the Retreat at Fort Collins site are Lemay Avenue, Vine
Drive, Linden Street, Redwood Street, Suniga Road, Lupine Drive, Conifer Street and
North College Avenue. Figure 2 shows a schematic of the existing geometry at the key
intersections.
Lemay Avenue is east of the proposed Retreat at Fort Collins site. It is a north-
south street classified as a four-lane arterial street according to the Fort Collins Master
Street Plan. Currently, Lemay Avenue has a two-lane cross section in this area. At the
Lemay/Vine intersection, Lemay Avenue has all movements combined into a single
lane. The Lemay/Vine intersection has signal control. The posted speed limit in this
area of Lemay Avenue is 30 mph, south of Vine Drive, and 35 mph, north of Vine Drive.
Vine Drive is south of the proposed Retreat at Fort Collins site. It is an east-west
street classified as a two-lane collector street according to the Fort Collins Master Street
Plan. Currently, Vine Drive has a two-lane cross section. At the Lemay/Vine
intersection, Vine Drive has an eastbound and westbound left-turn lane and a
through/right-turn lane in each direction. At the Vine/Redwood-Linden intersection, Vine
Drive has all movements combined into a single lane. The Vine/Redwood-Linden
intersection has all-way stop sign control. The posted speed limit in this area of Vine
Drive is 45 mph, east of Lemay Avenue, and 35 mph, west of Lemay Avenue.
Linden Street is south of the proposed Retreat at Fort Collins site. It is a north-
south street classified as a two-lane collector street according to the Fort Collins Master
Street Plan. Currently, Linden Street has a two-lane cross section with parking on both
sides of the street. Linden Street is the south leg of the Vine/Redwood-Linden
intersection. At the Vine/Redwood-Linden intersection, Linden Street has all
northbound movements combined into a single lane. The posted speed limit in this area
of Linden Street is 30 mph.
Vine
College
Conifer
kory
Redwood
Jerome
Blue Spruce
Suniga
Lemay
Lupine
SCALE: 1"=1000'
SITE LOCATION Figure 1
DELICH
ASSOCIATES
Retreat at Fort Collins TIS, March 2018
Page 3
Retreat at
Fort Collins
EXISTING GEOMETRY Figure 2
DELICH
ASSOCIATES
Retreat at Fort Collins TIS, March 2018
Page 4
Vine Drive
College Avenue
Lemay Avenue
Linden
Street
Conifer Street
Suniga Road
Redwood
Street
- Denotes Lane
Lupine Drive
DELICH Retreat at Fort Collins TIS, March 2018
ASSOCIATES Page 5
Redwood Street is west of (adjacent to) the proposed Retreat at Fort Collins site.
It is a north-south street classified as a two-lane collector street according to the Fort
Collins Master Street Plan. Currently, Redwood Street has a two-lane cross section
with parking on both sides of the street. Redwood Street is the north leg of the
Vine/Redwood-Linden intersection. At the Vine/Redwood-Linden intersection, Redwood
Street has all southbound movements combined into a single lane. At the Suniga/
Redwood intersection, Redwood Street has all movements combined into a single lane.
At the Redwood/Lupine intersection, Redwood Street has all movements combined into
a single lane. At the Conifer/Redwood intersection, Redwood Street has all movements
combined into a single lane. The Suniga/Redwood, Redwood/Lupine, and Conifer/
Redwood intersections are stop sign controlled on Suniga Road, Lupine Drive and
Redwood, respectively. The posted speed limit in this area of Redwood Street is 30
mph, south of Conifer Street, and 25 mph, north of Conifer Street.
Suniga Road is southwest of the proposed Retreat at Fort Collins site. It is an
east-west street designated as a four-lane arterial street on the Fort Collins Master
Street Plan. Currently, Suniga Road has a four-lane cross section. Suniga Road only
has a west leg at the Suniga/Redwood intersection. The west end of Suniga Road
terminates just west of the Suniga/Blue Spruce Drive-Blondel Drive intersection. At the
Suniga/Redwood intersection, Suniga Road has enough width for an eastbound left-turn
lane, a through lane, and a through/right-turn lane. However, it is striped combining all
movements into a single lane. The posted speed limit in this area of Suniga Road is 35
mph. Suniga Road will connect to North College Avenue in the near future (1-3 years).
Lupine Drive Street is west of the proposed Retreat at Fort Collins site. It is an
east-west street classified as a two-lane local street according to the Fort Collins Master
Street Plan. Currently, Lupine Drive has a two-lane cross section with parking on both
sides of the street. At the Redwood/Lupine intersection, Lupine Drive has all
movements combined into a single lane. There is no posted speed limit on Lupine
Drive.
Conifer Street is north of the proposed Retreat at Fort Collins site. It is an east-
west street classified as a two-lane collector according on the Fort Collins Master Street
Plan. Currently, Conifer Street has a two-lane cross section with parking on both sides
of the street. At the Conifer/Redwood intersection, Conifer Street has all movements
combined into a single lane. The posted speed limit in this area of Conifer Street is 30
mph.
North College Avenue is west of the proposed Retreat at Fort Collins site. It is a
north-south street classified as a four-lane arterial on the Fort Collins Master Street
Plan. Currently, College Avenue has a four-lane cross section in this area. The posted
speed limit in this area of North College Avenue is 40 mph in this area.
DELICH Retreat at Fort Collins TIS, March 2018
ASSOCIATES Page 6
Existing Traffic
Recent morning and afternoon peak hour traffic volumes are shown in Figure 3.
The traffic counts at the Lemay/Vine intersection were obtained in May 2016. The traffic
counts at the Suniga/Redwood, Redwood/Lupine, and Conifer/Redwood intersections
were obtained in August 2017. The traffic counts at the Vine/Redwood-Linden
intersection were obtained in September 2017. Raw traffic count data are provided in
Appendix B.
Existing Operation
The Lemay/Vine, Vine/Redwood-Linden, Suniga/Redwood, Redwood/Lupine,
and Conifer/Redwood intersections were evaluated using techniques provided in the
2010 Highway Capacity Manual. Using the morning and afternoon peak hour traffic
shown in Figure 3, the peak hour operation is shown in Table 1. The Lemay/Vine,
Vine/Redwood-Linden, Suniga/Redwood, Redwood/Lupine, and Conifer/Redwood
intersections meet the City of Fort Collins Motor Vehicle LOS standard during the
morning and afternoon peak hours with existing signal control, geometry, and signal
timing, except for the Lemay/Vine intersection in the afternoon peak hour. At the
Lemay/Vine intersection, the calculated delay for the westbound approach and eastbound
through/right-turn lane was commensurate with level of service F. Calculation forms are
provided in Appendix C. A description of level of service for signalized and unsignalized
intersections from the 2010 Highway Capacity Manual and a table showing the Fort
Collins Motor Vehicle LOS Standards (Intersections) are also provided in Appendix C.
Acceptable overall operation at signalized intersections during the peak hours is defined
as level of service D or better. At signalized intersections, acceptable operation of any
leg and any movement is level of service E. At arterial/arterial and collector/collector
stop sign controlled intersections, acceptable operation is considered to be at level of
service E, overall and level of service F, for any approach leg. At arterial/collector,
arterial/local, collector/local, and local/local stop sign controlled intersections;
acceptable operation is considered to be at level of service D, overall and level of
service F, for any approach leg.
Pedestrian Facilities
There are sidewalks along Redwood Street, Suniga Road, Lupine Drive, and
North College Avenue. There is a sidewalk along the south side of Conifer Drive.
There are no sidewalks along either side of Vine Drive and Lemay Avenue. It is
expected that as properties in this area are developed or redeveloped, sidewalks will be
installed as part of the street infrastructure.
RECENT PEAK HOUR TRAFFIC Figure 3
DELICH
ASSOCIATES
Retreat at Fort Collins TIS, March 2018
Page 7
Vine Drive
College Avenue
Lemay Avenue
Linden
Street
Conifer Street
Suniga Road
Redwood
Street
3/11
36/95
2/10
6/10
52/57
2/4
4/8
0/0
10/12
4/7
1/0
9/4
20/37
6/44
10/33
15/15
24/19
14/14
8/18
68/176
16/39
7/17
183/153
17/26
39/53
311/751
39/74
41/26
594/520
46/72
9/40
111/202
68/73
89/142
184/159
63/40
13/30
26/77
49/159
26/24
64/48
38/33
3/27
165/235
20/34
18/26
DELICH Retreat at Fort Collins TIS, March 2018
ASSOCIATES Page 8
TABLE 1
Current Peak Hour Operation
Intersection Movement Level of Service
AM PM
Lemay/Vine
(signal)
EB LT D D
EB T/RT D F
EB APPROACH D E
WB LT D D
WB T/RT E F
WB APPROACH E F
NB LT/T/RT A B
SB LT/T/RT B B
OVERALL C D
Vine/Redwood-Linden
(all-way stop)
EB LT/T/RT B B
WB LT/T/RT B B
NB LT/T/RT A B
SB LT/T/RT B B
OVERALL B B
Suniga/Redwood
(stop sign)
EB LT/RT A A
NB LT/T A A
OVERALL A A
Redwood/Lupine
(stop sign)
EB LT/T/RT A A
WB LT/T/RT A A
NB LT A A
SB LT A A
OVERALL A A
Conifer/Redwood
(stop sign)
EB LT A A
WB LT A A
NB LT/T/RT B B
SB LT/T/RT B B
OVERALL A A
DELICH Retreat at Fort Collins TIS, March 2018
ASSOCIATES Page 9
Bicycle Facilities
Bicycle lanes exist along Lemay Avenue, Vine Drive, Linden Street, Redwood
Drive, Suniga Road, Conifer Street, and North College Avenue, within the study area.
Transit Facilities
Currently, this area of Fort Collins is served by Transfort Routes 8 and 81. There
are bus stops at the Conifer/Redwood and Conifer/Blue Spruce intersections.
DELICH Retreat at Fort Collins TIS, March 2018
ASSOCIATES Page 10
III. PROPOSED DEVELOPMENT
The Retreat at Fort Collins is a student residential development with 739 beds
(190 apartment dwelling units), a clubhouse with a 1,500 square feet yoga/fitness
center, and a 500 square foot coffee shop. Figure 4 shows a site plan of the Retreat at
Fort Collins. The site plan shows a right-in/right-out access to/from Redwood Street and a
right-in/right-out access to/from Suniga Road. The site will have access to Redwood via
Lupine Drive and will have access to/from Suniga Road via two accesses through the
proposed Northfield development. The short range analysis (Year 2022) includes
development of The Retreat of Fort Collins site and an appropriate increase in
background traffic, due to normal growth, and other approved/proposed developments
in the area. The long range analysis (Year 2040) includes background traffic due to
normal growth and in general accordance with the Fort Collins Structure Plan.
Trip Generation
Trip generation is important in considering the impact of a development such as this
upon the existing and proposed street system. A compilation of trip generation information
contained in Trip Generation, 10th Edition, ITE is customarily used to estimate trips that
would be generated by the proposed/expected use at a site. However, the City of Fort
Collins has developed trip generation rates for student apartment projects similar to the
Retreat at Fort Collins. The Fort Collins trip generation rates are specifically applied to
student housing projects. A trip is defined as a one-way vehicle movement from origin to
destination. Table 2 shows the daily and peak hour trip generation for The Retreat of Fort
Collins site. It is assumed that alternative modes (pedestrian, bicycle, and transit) have
been considered in the City of Fort Collins rates for student apartments. The trip
generation of the Retreat of Fort Collins development resulted in 2206 daily trip ends,
169 morning peak hour trip ends, and 325 afternoon peak hour trip ends.
TABLE 2
Trip Generation
Code Use Size
AWDTE AM Peak Hour PM Peak Hour
Rate Trips Rate In Rate Out Rate In Rate Out
N/A (1) Student Apartment 739 Beds 2.65 1958 0.04 30 0.15 110 0.27 200 0.15 110
492 Yoga-Health/Fitness 1.5 KSF (2) 48 0.67 1 0.64 1 1.97 3 1.48 2
936 Coffee Shop (3) 0.5 KSF (4) 200 27.6 14 26.6 13 10.2 5 10.2 5
Total Trip Generation 2206 45 124 208 117
(1) Fort Collins Rates
(2) (Peak Hour of Generator)*(8 hours)
(3) External Traffic is half of the ITE rates for this use
(4) Daily derived from external peak hour trip ends plus in the other hours of the day
SITE PLAN Figure 4
DELICH
ASSOCIATES
Retreat at Fort Collins TIS, March 2018
Page 11
DELICH Retreat at Fort Collins TIS, March 2018
ASSOCIATES Page 12
Trip Distribution
Trip distribution for the Retreat at Fort Collins was based on existing/future travel
patterns, land uses in the area, consideration of trip attractions/productions in the area,
and engineering judgment. Figure 5 shows the trip distribution for the short range
(2022) and long range (2040) analysis futures. The trip distribution was agreed to by
City of Fort Collins staff in the scoping discussions/emails.
Background Traffic Projections
The short range (2022) future reflects the completion of Suniga Road from North
College Avenue to Lemay Avenue. Figure 6 shows the short range (2022) background
traffic projections. Background traffic projections for the short range future horizons
were obtained by reviewing the North Front Range Regional Transportation Plan, CDOT
growth factors, and various traffic studies prepared for this area of Fort Collins. The
other traffic studies in this area are the Northfield, Crowne at Old Town North, and Old
Town North. Based upon these sources, it was determined that the traffic volumes
would increase by approximately 2.0 percent per year. The unbuilt portion of Old Town
North, the Crowne at Old Town North, and Northfield, Phase 1 were included in the
short range volumes. Figure 7 shows the long range (2035) background peak hour
traffic projections. The Northfield, Phase 2 was included in the long range volumes.
The long range (2040) future reflects completion of Suniga Road, as shown in the Fort
Collins Master Street Plan.
Trip Assignment
Trip assignment is how the generated and distributed trips are expected to be
loaded on the street system. The assigned trips are the resultant of the trip distribution
process. Figure 8 shows the site generated peak hour traffic. Figure 9 shows the short
range (2022) total (site plus background) peak hour traffic assignment. Figure 10 shows
the long range (2040) total (site plus background) peak hour traffic assignment.
Signal Warrants
As a matter of policy, traffic signals are not installed at any location unless warrants
are met according to the Manual on Uniform Traffic Control Devices. For the roads in the
vicinity of The Retreat at Fort Collins development, four hour and/or eight hour signal
warrants are applicable. These warrants require much data and are applied when the
traffic is actually on the area road system. It is acknowledged that peak hour signal
warrants should not be applied, but since the peak hour forecasts are readily available in a
traffic impact study, it is reasonable to use them to get an idea whether other signal
warrants may be met. If peak hour signal warrants will not be met at a given intersection,
it is reasonable to conclude that it is not likely that other signal warrants would be met. If
SCALE: 1"=1000'
TRIP DISTRIBUTION Figure 5
DELICH
ASSOCIATES
Retreat at Fort Collins TIS, March 2018
Page 13
Retreat at
Fort Collins
Nom.
20% 30%
35%
10%
5%
AM/PM
SHORT RANGE (2022) BACKGROUND
PEAK HOUR TRAFFIC Figure 6
DELICH
ASSOCIATES
Retreat at Fort Collins TIS, March 2018
Page 14
Vine Drive
College Avenue
Lemay Avenue
Linden
Street
17/46
36/115
54/176
29/26
101/69
54/42
3/30
197/271
35/45
23/41
234/229
77/56
1223/1271
41/88
814/1454
55/192
61/87
168/115
51/90
350/855
70/188
49/33
684/595
62/112
15/52
145/295
106/94
126/174
268/218
154/92
Conifer Street
Suniga Road
50/89
451/923
55/55
705/651
32/72
78/77
8/32
33/101
12/43
49/35
45/57
22/24
17/59
55/118
30/16
19/19
LONG RANGE (2040) BACKGROUND
PEAK HOUR TRAFFIC Figure 7
DELICH
ASSOCIATES
Retreat at Fort Collins TIS, March 2018
Page 15
Vine Drive
College Avenue
Lemay Avenue
Linden
Street
Suniga Road
Redwood
Street
145/175
535/935
30/155
90/90
940/710
85/135
35/70
260/385
140/130
135/190
280/285
160/80
40/70
40/120
50/145
70/65
55/70
30/45
40/80
320/460
45/65
50/35
415/430
135/85
35/30
90/225
15/45
15/10
145/165
15/10
10/15
20/25
30/35
10/15
25/20
45/25
30/20
795/1470
180/315
5/5
1290/1305
170/265
25/20
5/5
10/10
140/205
AM/PM
SITE GENERATED
PEAK HOUR TRAFFIC Figure 8
DELICH
ASSOCIATES
Retreat at Fort Collins TIS, March 2018
Page 16
11/50
13/62
Vine Drive
College Avenue
Lemay Avenue
Linden
Street
9/42
25/23
1/4
16/73
2/2
44/41
13/62
37/35
Conifer Street
Suniga Road
39/36
4/15
2/2
B
13/62
1/4
2/2
37/35
9/41
0/1
19/18
11/10
4/4
16/75
1/2
0/0
27/25
14/13
Redwood
Street
2/2
35/33
10/51
4/15
1/3
4/4 A
A
Northfield
Access
4/4
11/50
5/23
10/10
34/32
4/4
6/6
AM/PM
SHORT RANGE (2022) TOTAL
PEAK HOUR TRAFFIC Figure 9
DELICH
ASSOCIATES
Retreat at Fort Collins TIS, March 2018
Page 17
81/233
13/62
Vine Drive
College Avenue
Lemay Avenue
Linden
Street
17/46
45/157
54/176
29/26
126/92
54/42
3/30
197/271
35/45
23/41
234/229
77/56
1223/1271
42/92
814/1454
71/265
63/89
212/156
51/90
363/917
70/188
49/33
721/630
62/112
15/52
145/295
106/94
126/174
268/218
154/92
Conifer Street
Suniga Road
39/36
4/15
151/138
B
63/151
451/923
56/59
705/651
34/74
115/112
8/32
42/142
12/44
68/53
LONG RANGE (2040) TOTAL
PEAK HOUR TRAFFIC Figure 10
DELICH
ASSOCIATES
Retreat at Fort Collins TIS, March 2018
Page 18
Vine Drive
College Avenue
Lemay Avenue
Linden
Street
Suniga Road
Redwood
Street
160/235
535/935
30/155
90/95
940/710
85/135
40/75
260/385
175/165
135/190
280/285
160/80
40/70
50/160
50/145
90/85
65/80
35/50
55/155
320/465
45/65
50/35
440/455
150/100
35/30
100/265
15/45
15/10
170/190
15/10
10/15
20/25
30/35
10/15
25/20
45/25
30/20
795/1470
195/390
5/5
1290/1305
170/270
25/20
5/5
10/10
145/210
DELICH Retreat at Fort Collins TIS, March 2018
ASSOCIATES Page 19
peak hour signal warrants are met, it merely indicates that further evaluation should occur
in the future as the development occurs. However, a judgment can be made that some
intersections will likely meet other signal warrants.
Using the short range (2022) total peak hour traffic (Figure 9), the peak hour signal
warrant will likely be met in the morning peak hour at the N. College/Suniga intersection.
The peak hour signal warrant analyses are provided in Appendix D. Other stop sign
controlled intersection will not meet peak hour signal warrants in the short range (2022)
future.
Using the long range (2040) total peak hour traffic (Figure 10), the peak hour signal
warrant will be met in the morning and afternoon peak hour at the Suniga/Redwood
intersection. The peak hour signal warrant will likely be met in the morning and afternoon
peak hour at the Suniga/Lemay intersection. The peak hour signal warrant analyses are
provided in Appendix D.
Operation Analysis
Capacity analyses were performed at the Lemay/Vine, Lemay/Suniga, Vine/
Redwood-Linden, Suniga/Redwood, Redwood/Lupine, Conifer/Redwood, N. College/
Suniga, and the site access intersections. The operations analyses were conducted for
the short range and long range futures, reflecting year 2022 and 2040 conditions,
respectively. In the long range future, analysis of the Lemay/Vine intersection was not
necessary.
Using the traffic volumes shown in Figure 6, the Lemay/Vine, Lemay/Suniga, Vine/
Redwood-Linden, Suniga/Redwood, Redwood/Lupine, Conifer/Redwood, Suniga/
Northfield Access, and N. College/Suniga intersections operate in the short range (2022)
background traffic future as indicated in Table 3. Calculation forms for these analyses are
provided in Appendix E. The key intersections will meet the City of Fort Collins Motor
Vehicle LOS Standard during the morning and afternoon peak hours, except for the
Lemay/Vine intersection in the afternoon peak hour. At the Lemay/Vine intersection, the
calculated delay for the afternoon approaches was commensurate with level of service F.
Using the traffic volumes shown in Figure 7, the Lemay/Vine, Lemay/Suniga, Vine/
Redwood-Linden, Suniga/Redwood, Redwood/Lupine, Conifer/Redwood, Suniga/
Northfield Access, and N. College/Suniga intersections operate in the long range (2040)
background traffic future as indicated in Table 4. Calculation forms for these analyses are
provided in Appendix F. The key intersections will meet the City of Fort Collins Motor
Vehicle LOS Standard during the morning and afternoon peak hours, except the
Suniga/Redwood intersection with stop sign control.
Using the traffic volumes shown in Figure 9, the Lemay/Vine, Lemay/Suniga, Vine/
Redwood-Linden, Suniga/Redwood, Redwood/Right-in Right-out Access, Redwood/
Lupine, Conifer/Redwood, Suniga/Northfield Access, Suniga/Right-in Right-out Access,
and N. College/Suniga intersections operate in the short range (2022) total traffic as
DELICH Retreat at Fort Collins TIS, March 2018
ASSOCIATES Page 20
TABLE 3
Short Range (2022) Background Peak Hour Operation
Intersection Movement Level of Service
AM PM
Lemay/Vine
(signal)
EB LT D D
EB T/RT D F
EB APPROACH D F
WB LT C D
WB T/RT E F
WB APPROACH D F
NB LT/T/RT B F
SB LT/T/RT C F
OVERALL C F
Suniga/Lemay
(stop sign)
EB LT C F
EB RT C C
EB APPROACH C D
NB LT B B
OVERALL A A
Vine/Redwood-Linden
(all-way stop)
EB LT/T/RT B C
WB LT/T/RT B C
NB LT/T/RT A C
SB LT/T/RT B B
OVERALL B C
Suniga/Redwood
(stop sign)
EB LT A A
WB LT A A
NB LT/T/RT B B
SB LT/T/RT B C
OVERALL A A
Continued on next page
DELICH Retreat at Fort Collins TIS, March 2018
ASSOCIATES Page 21
Continued from previous page
TABLE 3
Short Range (2022) Background Peak Hour Operation
Intersection Movement Level of Service
AM PM
Redwood/Lupine
(stop sign)
EB LT/T/RT A A
WB LT/T/RT A A
NB LT A A
SB LT A A
OVERALL A A
Conifer/Redwood
(stop sign)
EB LT/T/RT A A
WB LT/T/RT A A
NB LT/T/RT B C
SB LT/T/RT B B
OVERALL A A
Suniga/Northfield Access
(stop sign)
WB LT A A
SB LT/RT A A
OVERALL A A
N. College/Suniga
(signal)
WB LT D D
WB RT C C
WB APPROACH D D
NB T A A
NB RT A A
NB APPROACH A A
SB LT A B
SB T A A
SB APPROACH A A
OVERALL A A
DELICH Retreat at Fort Collins TIS, March 2018
ASSOCIATES Page 22
TABLE 4
Long Range (2040) Background Peak Hour Operation
Intersection Movement Level of Service
AM PM
Suniga/Lemay
(signal)
EB LT D D
EB T E D
EB RT A A
EB APPROACH E D
WB LT D D
WB T D D
WB RT D D
WB APPROACH D D
NB LT B A
NB T B B
NB RT A B
NB APPROACH B B
SB LT A B
SB T B B
SB RT B B
SB APPROACH B B
OVERALL C C
Vine/Redwood-Linden
(all-way stop)
EB LT/T/RT A A
WB LT/T/RT A A
NB LT/T/RT A B
SB LT/T/RT A A
OVERALL A A
Suniga/Redwood
(stop sign)
EB LT A A
WB LT A A
NB LT/T/RT F F
SB LT/T/RT F F
OVERALL B F
Redwood/Lupine
(stop sign)
EB LT/T/RT A B
WB LT/T/RT B B
NB LT A A
SB LT A A
OVERALL A A
Continued on next page
DELICH Retreat at Fort Collins TIS, March 2018
ASSOCIATES Page 23
Continued from previous page
TABLE 4
Long Range (2040) Background Peak Hour Operation
Intersection Movement Level of Service
AM PM
Conifer/Redwood
(stop sign)
EB LT A A
WB LT A A
NB LT/T/RT C D
SB LT/T/RT C F
OVERALL A C
Suniga/Old Lemay
(stop sign)
EB LT A A
WB LT A A
NB LT C C
NB T/RT A B
NB APPROACH B C
SB LT C C
SB T/RT B B
SB APPROACH C C
OVERALL A A
Suniga/Northfield Access
(stop sign)
EB LT A A
WB LT A A
NB LT/T/RT C C
SB LT/T/RT B B
OVERALL A A
N. College/Suniga
(signal)
EB LT/T/RT E E
WB LT D D
WB T C D
WB RT C D
WB APPROACH D D
NB LT B B
NB T B C
NB RT B B
NB APPROACH B B
SB LT B D
SB T C B
SB RT C B
SB APPROACH B B
OVERALL C C
DELICH Retreat at Fort Collins TIS, March 2018
ASSOCIATES Page 24
indicated in Table 5. Calculation forms for these analyses are provided in Appendix G.
The key intersections will meet the City of Fort Collins Motor Vehicle LOS Standard during
the morning and afternoon peak hours, except for the Lemay/Vine intersection in the
afternoon peak hour. At the Lemay/Vine intersection, the calculated delay for the
afternoon approaches was commensurate with level of service F. Mitigation for the
Lemay/Vine intersection level of service will be determined through discussion with the
City of Fort Collins.
Using the traffic volumes shown in Figure 10, the Lemay/Vine, Lemay/Suniga,
Vine/Redwood-Linden, Suniga/Redwood, Redwood/Right-in Right-out Access,
Redwood/Lupine, Conifer/Redwood, Suniga/Northfield Access, Suniga/Right-in Right-
out Access, and N. College/Suniga intersections operate in the long range (2040) total
traffic future as indicated in Table 6. Calculation forms for these analyses are provided in
Appendix H. The key intersections will meet the City of Fort Collins Motor Vehicle LOS
Standard during the morning and afternoon peak hours with a signal at the
Suniga/Redwood intersection.
Vine/Lemay Adequate Public Facilities
Proposed developments in Northeast Fort Collins are required to address the
operation at the Vine/Lemay intersection. This intersection has been an issue for
proposed developments in North Fort Collins that will contribute traffic through this
intersection. Due to existing site constraints, a short term improvement is not
probable/practical and a proposed long term solution of grade separation has not been
fully funded.
Language from the Fort Collins Code, pertaining to APF, is provided in Appendix I.
The transportation elements are contained in: 3.7.3(D)(1); 3.7.3(1)(a); and 3.7.3(F). In
3.7.3(D)(1) and 3.7.3(1)(a), an intersection overall level of service E must be achieved to
not cause an APF issue. In 3.7.3(F), an APF exception can be granted when the project
traffic, through the Vine/Lemay intersection, is less than 50 peak hour trips.
Using the traffic volumes shown in Figure 9, the overall level of service at the
Vine/Lemay intersection will be C and F, in the respective peak hours. The site generated
traffic shown in Figure 8, the site generated traffic passing through the Vine/Lemay
intersection is 50 and 97 vehicles, in the respective peak hours. The APF exception
element cannot be applied, since the traffic passing through the Vine/Lemay intersection is
greater than 50 vehicles in either peak hour.
The City of Fort Collins is considering revisions to the Fort Collins Code, pertaining
to APF. These changes, if approved, will allow larger developments to move forward by
proposing mitigation options based on the size/impact of the development. If the Code
revisions related to APF are not approved, the Retreat at Fort Collins will need to consider
options related to this issue: 1) phase the development so that less than 50 peak hour trips
are generated through the Lemay/Vine intersection; 2) propose and install improvements
to the existing Lemay/Vine intersection; or 3) provided funds toward the construction of
DELICH Retreat at Fort Collins TIS, March 2018
ASSOCIATES Page 25
TABLE 5
Short Range (2022) Total Peak Hour Operation
Intersection Movement Level of Service
AM PM
Lemay/Vine
(signal)
EB LT D D
EB T/RT D F
EB APPROACH D F
WB LT C D
WB T/RT E F
WB APPROACH D F
NB LT/T/RT B F
SB LT/T/RT C F
OVERALL C F
Suniga/Lemay
(stop sign)
EB LT C F
EB RT C C
EB APPROACH C E
NB LT B A
OVERALL A A
Vine/Redwood-Linden
(all-way stop)
EB LT/T/RT B D
WB LT/T/RT B C
NB LT/T/RT B D
SB LT/T/RT B C
OVERALL B D
Suniga/Redwood
(stop sign)
EB LT A A
WB LT A A
NB LT/T/RT B E
SB LT/T/RT B D
OVERALL A C
Redwood/Right-in Right-out
Access (stop sign)
WB RT A A
OVERALL A A
Continued on next page
DELICH Retreat at Fort Collins TIS, March 2018
ASSOCIATES Page 26
Continued from previous page
TABLE 5
Short Range (2022) Total Peak Hour Operation
Intersection Movement Level of Service
AM PM
Redwood/Lupine
(stop sign)
EB LT/T/RT A B
WB LT/T/RT B B
NB LT A A
SB LT A A
OVERALL A A
Conifer/Redwood
(stop sign)
EB LT/T/RT A A
WB LT/T/RT A A
NB LT/T/RT B C
SB LT/T/RT B C
OVERALL A A
Suniga/Northfield Access
(stop sign)
WB LT A A
SB LT/RT B B
OVERALL A A
Redwood/Right-in Right-out
Access (stop sign)
WB RT A A
OVERALL A A
N. College/Suniga
(signal)
WB LT D D
WB RT C C
WB APPROACH D C
NB T A A
NB RT A A
NB APPROACH A A
SB LT A C
SB T A A
SB APPROACH A A
OVERALL A A
DELICH Retreat at Fort Collins TIS, March 2018
ASSOCIATES Page 27
TABLE 6
Long Range (2040) Total Peak Hour Operation
Intersection Movement Level of Service
AM PM
Suniga/Lemay
(signal)
EB LT D D
EB T E D
EB RT D D
EB APPROACH E D
WB LT D D
WB T D D
WB RT D D
WB APPROACH D D
NB LT B B
NB T B B
NB RT A B
NB APPROACH B B
SB LT A B
SB T B B
SB RT B B
SB APPROACH B B
OVERALL C C
Vine/Redwood-Linden
(all-way stop)
EB LT/T/RT A A
WB LT/T/RT A A
NB LT/T/RT A B
SB LT/T/RT A A
OVERALL A A
Suniga/Redwood
(stop sign)
EB LT A A
WB LT A A
NB LT/T/RT F F
SB LT/T/RT F F
OVERALL D F
Suniga/Redwood
(signal)
EB LT B B
EB T B B
EB APPROACH B B
WB LT B B
WB T B B
WB APPROACH B B
NB LT/T/RT A B
SB LT/TRT A B
OVERALL B B
Redwood/Right-in Right-out
Access (stop sign)
WB RT A B
OVERALL A A
Continued on next page
DELICH Retreat at Fort Collins TIS, March 2018
ASSOCIATES Page 28
Continued from previous page
TABLE 6
Long Range (2040) Total Peak Hour Operation
Intersection Movement Level of Service
AM PM
Redwood/Lupine
(stop sign)
EB LT/T/RT A B
WB LT/T/RT B B
NB LT A A
SB LT A A
OVERALL A A
Conifer/Redwood
(stop sign)
EB LT/T/RT A A
WB LT/T/RT A A
NB LT/T/RT C F
SB LT/T/RT C D
OVERALL A C
Suniga/Old Lemay
(stop sign)
EB LT A A
WB LT A A
NB LT C C
NB T/RT A B
NB APPROACH B C
SB LT C D
SB T/RT B B
SB APPROACH C C
OVERALL A A
Suniga/Northfield Access
(stop sign)
EB LT A A
WB LT A A
NB LT/T/RT C C
SB LT/T/RT C D
OVERALL A A
Suniga/Right-in Right-out Access
(stop sign)
WB RT B B
OVERALL A A
N. College/Suniga
(signal)
EB LT/T/RT E E
WB LT D E
WB T C D
WB RT C D
WB APPROACH D E
NB LT B B
NB T B C
NB RT B B
NB APPROACH B C
SB LT B D
SB T C B
SB RT C B
SB APPROACH C B
OVERALL C C
DELICH Retreat at Fort Collins TIS, March 2018
ASSOCIATES Page 29
of grade separated improvements. It should be noted that phasing developments to stay
under the APF threshold has been the standard approach for other large developments in
the northeastern portion of Fort Collins.
Geometry
Figure 11 shows a schematic of the short range (2022) geometry. This is the
existing geometry at the Lemay/Vine, Vine/Redwood-Linden, Redwood/Lupine, and
Conifer/Redwood intersections. The Lemay/Suniga, Suniga/Northfield Access, N.
College/Suniga and site access intersections are future intersections.
Figure 12 shows a schematic of the long range (2040) geometry. This is based on
the Fort Collins Master Street Plan.
Pedestrian Level of Service
Appendix J shows a map of the area that is within 1320 feet of the Retreat at Fort
Collins development. There are three pedestrian destinations within 1320 feet of the
Retreat at Fort Collins development. These are: 1) the residential area to the west; 2)
the residential area to the north; and 3) the proposed residential area to the east. The
Retreat at Fort Collins is located within an area termed as “transit corridor,” which sets
the level of service threshold at LOS B for directness and security and LOS C for all
other measured categories. Pedestrian level of service cannot be achieved for all
pedestrian destinations. The residential neighborhood to the north does not meet
directness and continuity. This is due to the layout of existing developments to the
north. The pedestrian LOS Worksheet is provided in Appendix J. There are properties
that are within the pedestrian influence area that do not have sidewalks. The practical
limits of pedestrian improvements would be on the Retreat at Fort Collins site itself.
Bicycle Level of Service
Appendix J shows a map of the area that is within 1320 feet of the Retreat at Fort
Collins development. There are no bicycle destinations within 1320 feet of the Retreat
at Fort Collins development. The Bicycle LOS Worksheet is provided in Appendix J.
The minimum level of service for this site is C. This site is connected to bike lanes on
Lemay Avenue, Suniga Road, and Redwood Street. Therefore, it is concluded that
level of service A can be achieved.
Transit Level of Service
This area of Fort Collins is served by Transfort Routes 8 and 81. There are bus
stops at the Conifer/Blue Spruce, Conifer/Redwood, and College/Conifer intersections.
SHORT RANGE (2022) GEOMETRY Figure 11
DELICH
ASSOCIATES
Retreat at Fort Collins TIS, March 2018
Page 30
Vine Drive
College Avenue
Lemay Avenue
Linden
Street
Conifer Street
Suniga Road
B
Redwood
Street
A
A
Northfield
Access
Lupine Drive
B
Right-in/Right-out
Access
C Right-in/Right-out
Access
C - Denotes Lane
- Denotes New Lane
LONG RANGE (2040) GEOMETRY Figure 12
DELICH
ASSOCIATES
Retreat at Fort Collins TIS, March 2018
Page 31
Vine Drive
College Avenue
Lemay Avenue
Linden
Street
Redwood
Street
- Denotes New Lane
- Denotes Lane
D
A
Suniga Road
Lupine Drive B
C
C
AD
Old Lemay
Avenue
Right-in/Right-out
Access
Right-in/Right-out
Access
Northfield
Access
B
DELICH Retreat at Fort Collins TIS, March 2018
ASSOCIATES Page 32
IV. CONCLUSIONS
This study assessed the impacts of the Retreat at Fort Collins on the street system
in the vicinity of the proposed development in the short range (2022) and long range
(2035) futures. As a result of this analysis, the following is concluded:
- The development of the Retreat at Fort Collins is feasible from a traffic engineering
standpoint. The trip generation of the Retreat at Fort Collins development resulted
in 2206 daily trip ends, 169 morning peak hour trip ends, and 325 afternoon peak
hour trip ends.
- Current operation at the Lemay/Vine, Vine/Redwood-Linden, Suniga/Redwood,
Redwood/Lupine, and Conifer/Redwood intersections meet the City of Fort
Collins Motor Vehicle LOS standard during the morning and afternoon peak
hours with existing signal control, geometry, and signal timing, except for the
Lemay/Vine intersection in the afternoon peak hour. At the Lemay/Vine
intersection, the calculated delay for the westbound approach and eastbound
through/right-turn lane was commensurate with level of service F.
- The Vine/Redwood-Linden, Suniga/Redwood, Redwood/Lupine, and
Conifer/Redwood intersections are currently unsignalized. It is not likely that
volume based signal warrants would be met at the Vine/Redwood-Linden,
Redwood/Lupine, and Conifer/Redwood intersections. Using the short range
(2022) total peak hour traffic forecasts, the peak hour signal warrant will likely be
met in the morning and afternoon peak hours at the N. College/Suniga intersection.
Using the long range (2035) total peak hour traffic forecasts, the peak hour signal
warrant will likely be met in the morning and afternoon peak hours at the
Lemay/Suniga intersection.
- In the short range (2022) future, given development of the Retreat at Fort Collins
and an increase in background traffic, the Lemay/Vine, Lemay/Suniga, Vine/
Redwood-Linden, Suniga/Redwood, Redwood/Right-in Right-out Access,
Redwood/ Lupine, Conifer/Redwood, Suniga/Northfield Access, Suniga/Right-in
Right-out Access, and N. College/Suniga intersections will meet the City of Fort
Collins Motor Vehicle LOS Standard during the morning and afternoon peak hours,
except for the Lemay/Vine intersection in the afternoon peak hour. At the
Lemay/Vine intersection, the calculated delay for the afternoon approaches was
commensurate with level of service F. Mitigation for the Lemay/Vine intersection
level of service will be determined through discussions with the City of Fort Collins.
- In the long range (2040) future, given full development of the Northfield
development and an increase in background traffic, the Lemay/Vine,
Lemay/Suniga, Vine/ Redwood-Linden, Suniga/Redwood, Redwood/Right-in
Right-out Access, Redwood/ Lupine, Conifer/Redwood, Suniga/Northfield
Access, Suniga/Right-in Right-out Access, and N. College/Suniga intersections
will meet the City of Fort Collins Motor Vehicle LOS Standard during the morning
and afternoon peak hours with a signal at the Suniga/Redwood intersection.
DELICH Retreat at Fort Collins TIS, March 2018
ASSOCIATES Page 33
- The short range (2022) geometry is shown in Figure 11. This is the existing
geometry at the Lemay/Vine, Vine/Redwood-Linden, Redwood/Lupine, and
Conifer/Redwood intersections. The Lemay/Suniga, Suniga/Northfield Access, N.
College/Suniga and site access intersections are future intersections.
- The long range (2040) geometry is shown in Figure 12. This is based on the Fort
Collins Master Street Plan.
- This development does have an APF issue at the Vine/Lemay intersection. The
City of Fort Collins is considering revisions to the Fort Collins Code, pertaining to
APF. These changes, if approved, will allow larger developments to move forward
by proposing mitigation options based on the size/impact of the development. If the
Code revisions related to APF are not approved, the Retreat at Fort Collins will
need to consider options related to this issue: 1) phase the development so that
less than 50 peak hour trips are generated through the Lemay/Vine intersection; 2)
propose and install improvements to the existing Lemay/Vine intersection; or 3)
provided funds toward the construction of grade improvements. It should be noted
that phasing developments to stay under the APF threshold has been the standard
approach for other large developments in the northeastern portion of Fort Collins.
- Acceptable level of service is achieved for bicycle and transit modes based upon
the measures in the multi-modal transportation guidelines and future improvements
to the street system in the area. Pedestrian level of service cannot be achieved
for all pedestrian destinations. The residential neighborhood to the north does
not meet directness or continuity. This is due to the layout of existing
developments to the north. There are properties that are within the pedestrian
influence area that do not have sidewalks. The practical limits of pedestrian
improvements would be on the Retreat at Fort Collins site itself.
5/5
400/305
D
5/15
0/0
5/10
10/5
0/0
20/10
5/10
450/600
15/5
5/20
515/590
10/5
Suniga Road
A
AD
Northfield
Access
Old Lemay
Avenue
15/10
0/0
10/5
70/45
0/0
50/45
20/70
380/575
5/15
15/65
525/515
5/10
140/290
15/60
Conifer Street
40/35
5/15
600/555
B
5/15
125/215
15/60
10/10
135/160
10/30
5/10
0/0
10/15
15/20
0/0
45/35
70/85
40/90
35/70
25/25
65/60
20/20
15/30
160/315
45/75
15/25
295/300
50/60
Lupine Drive
C 5/5
AM/PM
Rounded to Nearest
5 Vehicles
56/67
26/28
33/134
56/120
30/16
19/19
116/118
55/37
Redwood
Street
39/22
55/44
14/66
116/131
9/35
95/157 A
A
Northfield
Access
3/12
68/160
13/61
7/11
95/99
7/27
4/9
0/0
11/13
14/18
1/0
44/36
40/60
24/71
22/56
17/17
43/45
15/15
9/20
75/194
32/52
8/19
202/169
34/40
Lupine Drive
B
Right-in/Right-out
Access
C Right-in/Right-out
Access
C 4/4
4/4
2/10
1/6
2/7
Lupine Drive
B
Right-in/Right-out
Access
C Right-in/Right-out
Access
C 4/4
1/3
5/5
355/265
D
5/15
0/0
5/10
10/5
0/0
20/10
5/10
410/565
15/5
5/20
500/525
10/5
Suniga Road
A
AD
Northfield
Access
Old Lemay
Avenue
15/10
0/0
10/5
65/40
0/0
15/10
20/65
375/570
5/15
5/15
520/500
5/10
Conifer Street
5/15
120/210
5/10
10/10
135/160
5/5
5/10
0/0
10/15
5/10
0/0
10/5
65/80
35/85
30/65
25/25
60/50
20/20
15/30
160/315
45/70
15/25
295/300
45/55
Lupine Drive
AM/PM
Rounded to Nearest
5 Vehicles
89/93
41/24
Redwood
Street
37/20
20/11
4/15
112/116
8/32
81/153 A
A
Northfield
Access
3/12
64/156
2/11
7/11
95/99
2/4
4/9
0/0
11/13
4/8
1/0
10/4
36/56
18/65
18/52
17/17
41/35
15/15
9/20
75/194
31/46
8/19
202/169
32/33
Lupine Drive
205/194
70/51
2/2
39/110
0/1
68/70
0/0
1/7
Lupine Drive
AM/PM