HomeMy WebLinkAboutPOUDRE SCHOOL DISTRICT, EAST PROSPECT ROAD SERVICE FACILITY - ODP & APU - 44-08/A - REPORTS - TRAFFIC STUDY (3)o The project is feasible from a traffic engineering perspective and
improves the surrounding roadway network.
Statement of Adequacy: The transportation facilities will be adequate and available to
serve this development as contained in the Larimer County Urban Area Street Standards.
All applicable LOS standards will be met since all transportation facilities are in place or
will be in place upon issuance of a certificate of occupancy,.
30
Poudre School District en -liner Countby,llaintenance Focility ELB Engineering, LLC
Transportation Impact Stud 5401 Taylor Lane
October 2008 Fort Collins. CO 80528
IX. Conclusion
This TIS assessed the impacts associated with the Poudre School District/Larimer
Country maintenance and school facility at the intersection of Prospect Road and
Country Road 5 located in Fort Collins, Colorado. Based on the analyses,
investigations, and findings documented in the various sections of this
Transportation Impact Study, the following can be concluded:
Short Term:
o Current operation is acceptable at all of the key intersections.
o The short-term project can expect to generate approximately 97 daily trip
ends, 13 morning peak hour trip ends, and 15 afternoon peak hour trip
ends.
o An auxiliary eastbound left turn lane will be required into the site at
McLaughlin
o Traffic LOS for the short term build scenario is acceptable based on the
LUCASS standards.
Mid -Term:
o The mid-term project can expect to generate approximately 913 daily trip
ends, 131 morning peak hour trip ends, and 121 afternoon peak hour trip
ends.
o New traffic signal will be required in the future at Prospect/Eastern
Frontage Road.
o The interchange is assumed to be reconstructed by this time frame by
other developments.
o Auxiliary eastbound left turn lane will be required at the intersection of
Prospect/Meadowaire.
o The project will be required to construct their half of arterial
improvements on Prospect.
Long -Term:
o The long-term project can expect to generate approximately 2128 daily
trip ends, 529 morning peak hour trip ends, and 233 afternoon peak hour
trip ends.
o In terms of multi -modal LOS, the project will not meet the standards for
bikes, pedestrians, or transit in the short or mid term horizons. It is likely
that the project will meet the standard in the long-range horizon when
additional development occurs in the area.
o The project will be required to construct their half of arterial
improvements on CR5.
o New traffic signals are likely to be needed at Prospect/CR5 and
CR5/Mulberry.
29
Poudre School DistrictlLarimer Country .Waintenance FacilitY ELB Engineering. LLC
Transportation Impact Stud 5401 Taylor Lane . .
October 2008 Fort Collins. CO 80528
There are no bike lanes on either Prospect or CR5 at this time. As the property develops
and additional properties develop in the area, bike lanes will be added to the arterial
system.
C. Transit Level of Service
According to the LUCASS Multimodal Level of Service Manual, transit level of service
for the City of Fort Collins is based on the routes and service levels planned for the year
2015. However, the Manual was written in 1997 and is significantly outdated and no
longer considered valid. The transit LOS analyses are therefore based on the 2010
Transfort Strategic Plan. There is no transit service in the area nor are there any plans
by Transfort to provide service to the property in the short-term or long-term horizon.
28
Poudre School Districh'Laritner Counti), Alaintenance Facility ELB Engineering. LLC
Transportation Impact Stud 5401 Taylor Lane
October 2008 Fort Collba, CO 80528
S
�Y
u
%
tt,wrvnr
.*1 44V� = -
site
Figure 12: Multimodal Evaluation Area
A. Pedestrian Level of Service
The project will construct sidewalks adjacent to the property that meet the city standards.
However, the area is primarily rural and there are no sidewalks within the evaluation
area in which to provide connectivity. Over time, with additional development in the
area, there will be connectivity.
B. Bicycles Level of Service
The surrounding street system was evaluated for compliance with the City of Fort
Collins bicycle level of service standards. Acceptable LOS for bicycles is considered C.
27
Poudre School District:Lamnci County, :ll rinteuance Fncilir; ELB Engineetine. LLC
Transportation Impact Stud 5401 Taylor Lane
October 2008 Fort Collitts. CO 80528
o Signalization of the eastern frontage road and auxiliary lane
improvements.
o Arterial improvements along Prospect Road and the site's
frontage
• Long - Term
o Arterial improvements along CR 5 adjacent to the site.
o Signalization of Mulberry/CR 5 and Prospect/CR 5 as well as
auxiliary lane improvements at the intersections.
VIII. Multi -Modal Evaluation
Section 4.5.3 (B) of the Larimer County Urban Area Street Standards requires that
projects undergo a level of service analysis for alternative modes of transportation. The
modes of transportation that must meet LOS standards are bicycles, and pedestrians.
Transit service LOS must also be analyzed at the time of development review.
However, transit LOS is not part of the Adequate Public Facilities test.. The area of
interest for the alternative modes of transportation is shown below in Figure 9. The
area of the project is considered a "low density mixed use" area based on the City
Structure Plan and for purposes of these analyses.
26
Poudre School DistrictIantner Cou uty Alaintenance Facility ELB Engineering. LLC
Transportation Intpact Stud 5401 Taylor Lane
October 2008 Fort Collins. CO 80528
VII. Improvements
A. Traffic Signals
Traffic signals are never installed until Warrant is satisfied under the Manual on
Uniform Traffic Control Devices, 2000. During the course of a preparing a
transportation study, it was determined that the new potential traffic signals would be at
the following intersections:
• Prospect/Eastern Frontage Road in the mid-term scenario
• Prospect/Country Road 5 in the long-range scenario
• CR5/Mulberry in the long-range scenario
B. Auxiliary Lanes/System Improvements
A review of the LUCASS requirements regarding auxiliary lanes was undertaken as part
of this study. The following is the result of said analyses:
• Short -Term
o In phase I, year 2010, an eastbound left turn lane on Prospect at
McLaughlin Lane should be constructed into the site. The left
turn lane should have at least 75 feet of storage. Total lane
length should be 315 feet.
• Mid - Term
o By the year 2015, phase II, an eastbound left turn lane should be
constructed at Meadowaire with a minimum 150 feet of storage
and a total land length of 315 feet.
o The interchange needs to be reconstructed by the surrounding
developments to include a 4-lane overpass, right including right
and left turn lanes. Phasing of the traffic signals should also
include protected -permissive left turns.
25
Poudre School Districd'Laritner Country 11aintenance Facility ELB Engineering. LLC
Transportation Impact Stud 5401 TQylor Lane
October 2003 Font Collins, CO 80528
Table 6 - Year 2028 - Capacity Analysis
Total Traffic - Year 2028
AM
PM
Intersection
Movement
LOS
Delay
(sec/vehicle)
LOS
Delay
(seclvehicle)
ProspecWVestem Frontage Road
(Traffic Signal control)
EB L
C
31.0
E
73.1
EST
B
18.6
E
79.6
EBR
A
8.0
B
13.0
WBL
D
43.0
F
90.6
WBT
B
10.9
D
37.6
WBR
C
27.3
C
25.9
NB L
D
46.0
F
52.2
NB T/R
D
48.2
C
92.8
SB L
SB T
D
47.4
F
114.8
D
44.5
D
38.6
SBR
D
46.4
D
47.4
OVERALL
C
21.0
E
62.2
Prospect/SS Ramps
(Traffic Signal control)
EST
C
30.7
C
29.4
EBR
A
0.8
A
0.2
WBL
C
25.6
D
36.5
WBT
C
21.9
C
22.7
SB L
D
39.8
E
57.6
SBR
A
0.3
A
1.1
OVERALL
B
19.4
C
20.5
Prospect/NB Ramps
STOP
EB L
E
65.8
D
51.5
EB T
C
28.2
B
17.0
WBT
E
76.5
D
41.6
WBR
A
0.1
A
0.1
NBL
D
36.8
D
48.5
NB/R
A
0.3
A
0.1
OVERALL
D
38.4
D
35.5
Prospect/Eastern Frontage Road
TRAFFICSIGNAL
EB L
D
39.9
D
53.3
EB T
C
1 21.31
B
17.9
EB R
B
17.6
B
13.0
WBL
C
34.2
D
38.8
WB T/R
D
52.8
D
52.6
NBL
C
27.8
D
47.4
NB T/R
C
22.6
C
32.3
SB L
C
22.8
D
37.5
SB T/R
D
36.2
D
46.7
OVERALL
0
35.8
D
41.4
Prospect/McLaughlin Lane
STOP
EB L
A
9.6
A
8.7
WBL
A
8.5
A
8.9
NB APPROACH
D
29.8
C
22.1
SB L
F
62.2
D
27.
SB R
B
12
B
10.8
OVERALL
A
4.8
A
1.8
Prospect/Meadovraire Drive
STOP
EB L
A
9.3
A
8.7
WBL
A
8.9
A
8.9
NBAPPROACH
C
23.1
C
18.9
SB L
D
31.8
C
23.41
SB R
B
11.9
B
11.1
OVERALL
A
1
A
0.
ProspecUCounty Road 5
TRAFFICSIGNAL
EEL
B
14.1
B
15.3
EB T/R
B
13.1
B
15.3
WBL
B
11.9
B
12.1
WBT/R
B
13.1
B
13.1
NBL
A
5.5
A
7.9
NBL
A
4.8
A
6.0
NBR
A
4.6
A
5.1
SBL
A
4.6
A
5.2
SB T
A
4.8
A
5.4
SBR
A
4.6
A
5.3
OVERALL
B
11.4
B
11.6
Mulberry/County Road 5
STOP
EST
EBR
WBL
WBR
NBL
NS R
OVERALL
A
A
A
C
B
B
B
7.0
6.8
5.9
20.6
14.7
13.9
15.1
B
A
A
B
B
B
B
16.5
6.4
8.2
10.3
12.8
11.4
13.
CR 5/ School Drop off lane
STOP
EB L
B
10.8
B
10.
EBR
A
9.3
A
9.
NBL
A
7.8
A
7.
OVERALL
I A
1 1.21
A
0.
24
Poudre School Districtr'Larilnei Countg Alaintenatice Facility ELB Ens,=iaeei-inn, LLC
Transportation Impact Stud 5401 Taylor Lane
October 2008 Fort Collins, CO 80528
Table 5: Year 2015 - Capacity Analysis
Balcirtymound Tretflc
- Year 2015 Total - Yser 2015
AM I
PM AM PM
Intersection
Movement
LOS
Delay
(seclvehicla
LOS
Delay
(seaivehicle) I LOS
Delay
(seeivehicle) LOS
Delay
(serhehicle)
Prospect/Western Frontage Road
(Traffic Signal control)
B L
C
30.1
D
35. C
30.3 D 36.
B T
B
11.3
B
14. B
11.3 B 15.
R
A
8.6
A
8. A
8.5 A 9.8
L
B
20.0
B
17C
20.6 B 19.BT
C
30.9
C
25. C
32.6 C 22.BR
D
54.4
C
32. E
58.6 C 31.71
B L
C
23.2
C
23. C
23.5 C 22.
B T/R
JEB
C
23.1
C
23.1 C
23.6 C 22.
B L
B T
D
38.0
D
44. D
39.6 D 42.
C
30.0
C
22. C
30.0 C 22.
B R
C
247
C
24. C
24.8 C 24.
VERALL
B
28.0
C
24. C
29.1 C 23.ProspecUSB
Ramps
(Traffic Signal control)
B T
C
33.4
D
37.0 C
33.2 D 39.
B R
A
0.6
A
1. A
0.6 A 1.
BL
B
15.0
C
23.1 A
8.6 C 21.
BT
B
18.8
8
14. B
12.3 B 12.
BL
B
17.3
a
19.1 8
18.5 8 16.
BR
A
0.3
A
0. A
0.3 A 0.
OVERALL
B
15.5
B
14. 8
12.7 B 14.
ProspecUNS Ramps
TOP
EB L
D
52.7
C
33, D
50.0 E 62.1
EST
B
1Z8
B
17. C
27.0 C 35.
WBT
C
20.1
D
49. D
42.01 D 45.1
WB R
B
12.1
C
29.1 C
22.6B 11.
NB L
C
24.3
D
35. C
28.4 D 35.
NB/R
A
9.8
B
14. B
111 B 13.
OVERALL
C
21.6
C
34. C
29.8 D 37.
Prospect/Eastern Frontage Road
TRAFFIC SIGNAL
EB L
D
44.7
E
58. D
45.3 E 72.
EST
B
11.9
8
14. B
11.1 C 27.
EB R
D
1 37.5
B
13. C
34.6 E 64.
WBL
B
1 11.9
B
14. B
11.2 8 13.
WBT/R
B
128
B
15.1 B
12.2 B 14.1
NB L
B
16.7
C
25. B
17.7 C 30.
NB TIR
B
15.1
B
13. B
15.8 8 14.
SBL
B
15.1
B
13. B
15.9 B 14.
SB T/R
C
20.8
B
16. C
21.9 B 1 17.61
OVERALL
C
26.5
C
27. C
25.7 C 33.
ProspecUMCLaughiin Lane
STOP
EB APPROACH
A
0.0
A
0.
0.2
11.1
0.
WB APPROACH
A
0,2
A
NB APPROACH
B
A
10.6
0.3
B
A
OVERALL
EB L
WBL
NB APPROACH
SBL
SBR
OVERALL
EB UR
A
-
-�y}-:10
- _
'eu .`
0.0
I-
A
A
* A
B
B
.v .. A
A
0.1
0.
11.1
Z7 A 8.
7.7 A 7.
1 11.61 B 1 12.1
12.8 8 14.1
1 9.8 8 10.
1.2 A 0.
Prospect/Waeowave Dnve
TOP
WBT/L
NB UR
A
A
0.2
10.6
A
B
OVERALL
EB L
WBL
NB APPROACH
S8 L
SBR
OVERALL
EB APPROACH
A
0.3
A
0.
A
A
B
B
8.0 A B.
7.7 A T
12.6 B 12.
14.9 B 14.
8
mi;:.
13.6
C
A
A
18. C
10.1 B 10.
11 A 1.
15.8 C 19.
Prospect/County Road 5
STOP
WB APPROACH
B
13.8
C
16. B
14.0 C 16.
NB APPROACH
A
5.2
A
4. A
5.2 A 4.
SB APPROACH
A
0.4
A
0. A
0.4 A 0.
OVERALL
A
8.7
8
10. A
9.7 B 11.
Mulberry/County Road 5
STOP
WS L
NBAPPROACH
OVERALL
A
C
A
8.1
22.7
1.5
A
C
A
9.1 A
23.1 C
2. A
8.1 A 9.1
22.8 D 26.1
1.5 A 2.
23
Poudre School DistricGLarimer Couno7 Vaintcnancr Facility ELB Enyinecring. LLC
Transportation Impact Stud 5401 To-vlor Lane
October 2008 Foil Collins. CO 80528
further analysis of the interchange may be required in determining the exact interchange
configuration required to achieve acceptable LOS.
Additional roadway improvements are also required near the site and will be discussed
in the. following section of the report.
Table 4 Year 2011- Capacity Analysis
Background Tratitc
- Year 2011 Total - Year 2011
AM
PM AM I
PM
Intersection
Movement
LOS
Delay
(seclvehicle)
LOS
Delay
(sectvehicle)
LOS
Delay
(sec/vehicle)
LOS
Delay
(seclvehicle)
Prospect/Westem Frontage Road
(Traffic Signal control)
EB L
B
18.4
B
11.0
B
19.0
B
10.6
EB T/R
A
6.3
C
33.5
A
6.4
C
32.3
B L
A
6.9
D
39.6
A
6.8
D
39.3
B T/R
C
23.0
C
28.6
C
23.2
C
27.
NB L
C
32.8
C
25.5
C
32.8
C
26.0
NB T/R
C
32.6
C 1
25.6
C
32.6
C
26.1
SB Lrr/R
C
32.8
C
26.7
C
32.8
C
27.
OVERALL
B
17.5
C
30.8
B
17.7
C
29.9
Prospect/SB Ramps
(Traffic Signal control)
EB T
B
12.8
C
27.8
B
12.9
C
28.0
EB R
A
0.3
A
0.4
A
0.3
A
0.
BL
A
5.0
A
7.0
A
5.0
A
7.1
BT
B
12.1
B
18.0
B
12.2
B
18.
BL
C
21.5
B
14.7
C
21.7
B
14.6
SBR
A
0.2
A
0.1
A
0.2
A
0.1
OVERALL
B
8.1
B
12.0
A
8.2
B
12.2
Prospect/NB Ramps
STOP
EB UT
C
24.8
C
33.8
C
24.3
D
35.
WB T/R
C
1 22.0
B
16.6
C
22.1
B
16.3
NB L
C
20.5
C
20.5
C
21.6
C
20.9
NBIR
A
9.2
B
12.3
A
9.6
B
12.
OVERALL
C
21.6
C
24.2
C
22.2
C
25.1
Prospect/Eastem Frontage Road
STOP
EB APPROACH
A
1.5
A
1.0
A
1.3
A
.- 1.0
WB APPROACH
A
0.0
A
0.9
A
0.2
A
0.
NB APPROACH
B
12.5
B
12.0
B
13.0
B
12.
SB APPROACH
B
10.4
B
10.3
B
10.6
B
10.
OVERALL
A
2.7
B
3.9
A
2.7
B
3.
Prospect/McLaughlin Lane
STOP
EB T/R
A
0.1
A
0.1
A
0.0
A
0.0
EB L
NA
NA
NA
NA
A
7.7
A
7.
WB L
NA
NA
NA
NA
A
0.1
A
7.6
WB T/L
A
0.2
A
0.4
A
0.0
A
0.0
SB Lrr/R
NA
NA
NA
NA
B
11.3
B
10.
NB UT/R
A
9.5
A
9.7
B
9.7
B
10.1
OVERALL
A
0.5
A
0.5
A
1.3
A
1.
Prospect/Meadowaire Drive
STOP
EB UR
A
0.0
A
0.1
A
0.0
A
0.0
WBT/L
A
0.2
A
0.4
A
0.2
A
0.
NB UR
A
9.5
A
9.7
A
9.8
A
9.8
OVERALL
A
0.5
A
0.5
A
0.4
A
0.
Prospect/County Road 5
STOP
EB APPROACH
B
11.6
B
11.3
8
12.7
B
11.
WB APPROACH
B
12.9
B
11.3
B
13.3
B
11.
NB APPROACH
A
5.1
A
3.1
A
5.3
A
3.
SB APPROACH
A
0.5
A
0.5
A
0.4
A
0.5
OVERALL
A
6.7
A
6.8
A
7.4
A
7.0
Mulberry/County Road 5
STOP
WB L
NB APPROACH
OVERALL
A
C
A
8.1
19.8
1.2
A
C
A
9.0
21.6
1.9
A
C
A
8.1
20.6
1.3
A
C
A
9.0
22.
2.0
22
Poudre School DistrictIaritner Country Alaintenance Facility ELB Engineerinla, LLC
Transportarion Intpuct Stud 5461 Ta}ylur Lane
October 2008 Fort Collins. CO 80528
VI. Traffic Analysis
Capacity analysis was performed at the key intersections for both the background traffic
as well as the total traffic for the year 2011 and 2015. The year 2028 total traffic was
also modeled and analyzed as part of this study. The analyses followed the procedures
of the Highway Capacity Manual 2000. Table 4, 5 and 6 display the results of the
analyses.
Year 2011 .
In the Year 2011, all key intersections continue to operate at acceptable levels of service
for both the background and total traffic models. It was assumed that by the year 2011,
the Interstate Land project and the White property had not yet developed and no
improvements to the interchange had occurred. Capacity worksheets are found in
Appendix D.
Year 2015
In the mid-term scenario, it is assumed that the available land around the Interstate had
developed and improvements were made to the interchange. As part of the analysis, the
existing geometries of the interchange were modeled with the build -out and there were
major capacity failures at the 4-key intersections near the interchange. It was therefore
assumed that improvements had been made to the interchange in the analysis for the
background traffic. The key intersections met the LOS standards in the mid-term
scenario. Capacity worksheets are found in Appendix E.
Year 2028
In the long-term, the interchange begins to see capacity failures in the afternoon peak
hours. The traffic projections for the interchange are fairly consistent with the
projections used during the CDOT's EIS of the corridor. Additional improvements and
21
Poudre School DistricAarimer Counny Maintenance Facility ELB Engineering. LLC
Transportation Impact Stud 5401 Taylor Lane
October 2003 Foil Collins, CO 80528
Figure 11: Year 2025 Total Peak Hour Turning Movements (AM/PM)
20
Prmdre School DistrictlTarimer C owitry Maintenance Facility l.LB Engineering, LLC
Transportation lmpact Sind 5401 Tavlor lane
October 2008 Fort Collins, CO 80528
Figure 10: Year 2015 Total Peak Hour Turning Movements (AM/PM)
moo
M O �
1010/1555 a r�+ 1490/14
790/900 r� 290/310
rro5pect FZoad
N O N
280/300 400/360
1725/2000 a i 2040/1720
110/70 170/110 r
0
� o
60/70
535/465
535/4
50/10
o
/
15/10
15/10
0
c_
v O O
N z -
30/15
615/520
515
. 50/10
610/6354 r
80 \
1 340/900
280/220
860/920
�.
640/920
O N
� � O
Pinrdre School District%Larhnc:r Country B4ainitwance Facility
Transportation help rct Stud
October 2008
340/700 00
130/80 cW
C
c
o
o
135/55
475/595
5/5
�z
75/20
530/475
5/5
b:l.BF.,ngineerin,�, LLC
5401 Tavlor Lane;
Fort Collins, CO 80528
840/535
50/40
Mulberru
o
N
SIZ
v
t:-oo
=10
�a
140/165
15/15
75/125
200/190
370/360
25/25
Figure 9: Year 2011 Total Peak Hour Turning Movements (AM/PM)
510/5865/1080
0/900��l80/350
aa5/ao535/15
0/
250/30526
Prospect f.'oad
N O N
265/290 290/260
795/1205�'" 1135/10
515 15/25
oo�
n o
North
285/585 700/445
55/55 4 0 35/25
4t
/
G
\
v o 0
Nz�
50110
30/15
215/205
235/315
5/5
i 165/25 ' `"r 120/155
N i 495/41 '���^� 515/740
o /M pM�
Pondre School UistricUlarimer Coman, Maintenance Facility
Transportation hnpact Stied
October 2008
L
r
Oz 1015
220/315
515
ELl3 Engincering, L,l,C
5401 Tavlor Laney
1, rrt Collins, CO 80528
Mulberry
65/80
515
40/60
65/100
115/85
4jfW
5110
v
North
660/420
30/20
Prospect Foad
17
Poudre School DistrievLarirner Country Maintenance facility LLB Engineering LLC
Transportation hnpac•t Sind 5401 Tcrvlor Lane
October 2008 Fort Collins. CO 80528
0
910/1555 C 1450/14
790/1100 �" 7»` 270/310
Prospect Poad
N O N
280/3004
400/360
1400/2200� 2000/ 1710
110/70 170/110
0 0
^ o r
0 0 0
0
00/4/450
Ea eO 4
50/10
340/700
65/60
l�
840/111
50/40
o^
Mulberry
ego
465/580
505/445
5/5
5/5
IS/15
200/190
4,fw
(33
25/25
h h
.................moo,
ao�
340/886
*I`s
47
245/210
740/920
580/910
N
I
0 0
O �
^ � O
Figure 8: Year 2025 Background Peak Hour Turning Movements
(AM/PM)
I
�
L
75
465/580 505/445
5/5 515
285/585 700/445
55150 35125
Mulberry
7777
............
480/57017�IC� 1135/1050
180/350 445 35/1 5 lot
-V
550/900 /4 2201280
51: 200/1
5/25 220/315
120/45
205/200 515
7S 5/5 60/70 515
40/60 65/100
4.
105/75 4t" 5110
...............
k . ................
................................
.........................
- F15
CAW
Prospect I'.oad
-71
6 L75 /100
40/60 5 1 05/75 5110
265/290 290/260
765/1190 110511010
5/5 15/25
165/254--'
120/155
450/40 485/710
4VW
205/2001 220/315 15)
515C 515
+ 4t
North
Figure 7: Year 2015 Background Peak Hour Turning Movements
(AM/PM)
October 2008 Port Collins. CO 80528
270/5501 p 660/420
50/45 30/20
Mulberry
..................
..............
210/365 855/60
35/5
55 /655 20/25
20/25
851140
220/95
15/35
5/10 200/90
65/160 5/5
; .
.20/50
"4
5/5
20/50
5 15
25/5 0
25/50
60/20
CJ
25/70
25/70
*Oays� 015
Prospect Poad
................
............
..........
55125 35/30
ZE
545/965 1010/72
515 15/25
120/20
05/10
1
T\
95/170
190/160
65/160 200/93
North
Figure 6: Year 2011 Background Peak Hour Turning Movements
I
(AM/PM)
Transporialion hnpaclSind 5401 Tavlor Lane
October 2008 For( Collins. CO 80528
V. Traffic Projections
Background traffic for the year 2011 was estimated by assuming that all traffic
movements on the public roadway system would increase by 1.5% per year, as agreed to
in the initial scoping meeting with the Traffic Operations Department. It is not likely
that the projects planned near the interchange will be implemented by this time.
Traffic projections for the year 2015 assumed that the Interstate Land project and the
White development had been implemented.
Traffic for the year 2028 assumed a full build -out for the area. Background traffic
projections are displayed in Figures 6, 7, and 8.
Site -generated traffic, by phase, was then added to each of the background traffic
projections to determine the total traffic volumes at the key intersections. Total traffic
projections are displayed in Figures 9, 10, and 11.
C
13
Poudre School DistricuLarirner Country Dlaintenance Facility ELB Engineering, LLC
Transportation Impact Stud 5401 TnvlorLanc
October 2008 Fort Collins. CO 80528
Pro5pect goad
10/10
50/10
50/10
Mulberry ( 5HI4)
515 a�
2015
65/20
15110 E'
° M 15110
o h �
O O h '•t O
O o 10/10 c c 0/0
v,
7
30/15
10/5
40
4 Nominal
30/15
75/20
0/0
C#
5/5
5/10 40/25 ct
4b
10/5
135155
S
�
R
CCCSIII
cV
G
C
Figure 5: Site Distributed Traffic (AM/PM)
XX/XX - YEAR 2010
XX/XX- YEAR 2015
XX/XX -YEAR 2028
v:
515 15/10 70/45 o
�Itn
v
I
North
12
Poudre School District/Larimer Comrtry Maintenance Facility ELB Engineering, LLC
Transportation Impact Stud 5401 Taylor Lane.
October 2008 Fort Collins. CO 80528
Mulberru ( SNIP})
Pr(
North
Figure 4: Site Distributed Traffic
8-
0
N
I
Poudre School DisirictIarimer Country iilaintenance F'acilig ELB Engineering, LLC
Transportation Impact Stud 5401 Taylor Lane
October 2008 Fort Collins, C:O 80528
Table 3 — Trip Generation Estimate
Dail
AM
PM
ENTER
JEXIT ENTER EXIT
code
Use
I units
I retB
I trips
I rat. I
pips
I rate
trips tale
trips I ate
tri
1i131fC l
Sm9loye0
1 Werenousi1
2EI
3.891
971
0.3710.1
41 0.21
0.
1
Ployee
11 li hl mtlusinal/fleet services - Lanmer Coun
3.
1
G.37
20
0.0
0.
0.
1
ii htintluslnallleet service.- outlre drool Ielrlol
0.37
Bo
0.
1
1
Total - Phase II
as
1 at
100
1
111
Sub -Total Phase 1 • II
91
1
91
5we //
I students
Middle School
1 7;41
1 '-
121
0.
21
0.2
1
TOTAL TRIPS Phase i . II . III
32
1
C. Trip Distribution
Trip distribution is the process of determining where the trips are coming to and from the
site. The distribution was based on knowledge of the existing and planned street system,
development trends in the area, the current traffic patterns, the position of the facility to
the PSD and Larimer County, other traffic studies that have been performed in the area,
and engineering judgment. The distribution is expected to remain fairly constant over
the long term. The distribution for the project is displayed in Figure 4. Site distributed
traffic is shown in Figure 5.
10
Poudre School District/Larimer Country Maintenance Facility ELB Engineering, LLC
Transportation bnpact Stud 5401 Tavlor Lane
October 2008 Fort Collins, CO 80528
A
�a
EAST -PROSPECT RM
Figure 3: Site Plan
B. Trip Generation
c
Trip generation is a key component when assessing the impact of a development upon
the surrounding roadway network. Trip generation rates for the proposed project are
based on Trip Generation, 7tt` Edition (Institute of Transportation Engineers). The
manual presents trip generation rates from numerous land use studies. It is assumed that
the transportation/vehicle maintenance operations are similar to the light industrial code.
Table 3 below summarizes the proposed trip generation for the project. The project can
expect to generate approximately 2128 daily trip ends, 529 morning peak hour trip ends,
and 223 afternoon peak hour trip ends.
9
Poudre School DictricAaritner Country Maintenance Facilhy ELB Engineering, LLC
Transportation Itnpact Stud 5401 Tavlor Lane
October 2008 Fort Collins. CO 80528
IV. Project Description
A. Project
The proposed development is the relocation of the current PSD
administrative/transportation related activities from the west Laporte Avenue site to the
northwest corner of Prospect Road and County Road 5. The project also includes the
relocation of the vehicle maintenance operations of Larimer County to the site. In the
long-term horizon, a potential future middle school will be constructed.
Access to the site is via three curb cuts: two on Prospect and one on CR5. The CR5 cut
will be for the middle school and will likely be for buses only. The other two curb cuts
will align with McLaughlin Lane and Meadowaire Drive.
The project will be constructed in three phases:
• Phase I — curb cut with McLaughlin Lane and will be the warehousing
operation. The time frame is by the year 2010
• Phase II — The construction of the PSD and the Larimer County transportation
maintenance/bus facilities. The time frame for this phase of the project is the
year 2015.
• Phase III — This phase is the middle school with an estimated 750 students.
A site plan is provided in Figure 4.
8
Patdre School District.1arimer Country Maintenance Facility ELB Engineering, LLC
Transportation Impact Stud 5401 Taylor Lane
October 2008 Fat Collins. CO 80528
Table 2
Year 2008 Capacity Analysis
Existing Traffic - Year 2008
AM
PM
Intersection
Movement
LOS
Delay
(sec/vehicle)
LOS
Delay
(see/vehicle)
Prospect/Western Frontage Road
(Traffic Signal control)
EB L
B
19.5
B
11.2
EB T/R
A
7.0
C
31.9
WB L
A
8.8
D
41.41
WB T/R
C
28.1
C
30.9
NB L
C
30.5
C
24.3
NB T/R
C
30.4
C
24.3
SB UT/R
C
30.7
C
25.3
OVERALL
C
21.0
C
30.9
Prospect/SB Ramps
(Traffic Signal control)
EB T
B
12.2
C
33.6
EB R
A
0.3
A
0.41
WB L
A
5.7
B
11.1
W B T
B
16.1
C
24.8
SB L
C
20.5
B
11.9
SB R
A
0.2
A
0.1
OVERALL
B
10.1
B
15.
Prospect/NB Ramps
STOP
EB UT
D
50.6
D
46.
WB T/R
C
27.6
B
19.3
NB
B
14.4
B
15.7
NB/R
A
6.9
AMO..
OVERALL
C
23.9
C
Prospect/Eastern Frontage Road
STOP
EB APPROACH
A
1.2
A
WB APPROACH
A
0.0
A
NB APPROACH
B
11.4
B
OVERALL
B
10.0
B
Prospect/McLaughlin Lane
STOP
EB UR
A
0.0
A
WB T/L
A
0.0
A
0.1
NB UR
A
9.8
A
9.7
OVERALL
A
0.1
A
0.2
Prospect/Meadowaire Drive
STOP
EB UR
A
0.0
A
0.0
WB T/L
A
0.1
A
0.2
NB UR
A
9.9
A
9.41
OVERALL
A
0.2
A
0.2
Prospect/County Road 5
STOP
EB APPROACH
B
10.9
B
10.5
WB APPROACH
B
11.5
B
10.5
NB APPROACH
A
4.8
A
3.0
SB APPROACH
A
0.1
A
0.3
OVERALL
A
0.1
A
7.2
Mulberry/County Road 5
STOP
WB L
NB APPROACH
OVERALL
A
C
A
8.0
18.9
1.1
A
C
A
8.8
19.7
1.7
7
Poudre School District. Larirner Com try Alaintenance Facility ELB Engineering, LLC
Transportation bnpact Stud 5401 TcrvlorLane
October 2008 Foil Collins. CO 80528
6
Pondre School DistricUZttrimer Country Maintenance Facility ELLS Engineering, LLC
Transportation Impact Sind 5401 Tavlor Lane
October 2008 Fort Collins. CO 80528
� O M
N O N
199/352
818/5
342/628�
15/22
Prospect f'oad
h �
N N
O O
55.24
�` '^'
35/29
522/9:
". i
970/689
1/4
13/21 t
/ N \
16/22 3/5
79/132 165/90
15/35 0/11
258/536 632/404
43/40 27/16
n r
M
61/157 160/87
1/1 1 0/1
lot
110/19 s
10/6
N 91/164� r
193/149
h
Vl
� N
� O
/
Figure 2: Existing Peak Hour Turning Movements (AM/PM)
E=
61/153 163/89
ED
2/2 E4 2/2
0
M O
Pondre School DistrictIarimer Canntrp ,14aintenance Facility ELB Engincerit,4, L:LC:
Transportation hnpaci Sind 5401 Tavlor Lane
October 2008 Fort Collins. CO 80528
Mulberry
V
v �
14/46
6/0
23/47
35/20
23/64
OVI&
0/2
North
Q. Surrounding Land Uses
Land uses in the area are primarily agricultural. There are a few minor residential
developments in the area and several others have been recently proposed. From a traffic
engineering perspective, the terrain is considered flat.
D). Current Traffic Conditions 1,
Capacity analyses were performed at the key intersections to determine if existing
deficiencies exist on the roadway network. The analyses followed the procedures and
techniques of the Highway Capacity Manual 2000. Level of Service (LOS) is a
qualitative term describing operating conditions and expressed in terms of delay. Table
1 below provides the definitions of LOS for both signalized and unsignalized
intersections. Table 2 displays the results of the analyses. The worksheets from the
analyses can be found in Appendix C.
Table 1
Level of Service Definitions
Level of
Service
Signalized Intersection
Average Total Delay (seconds/vehicle)
Unsignalized Intersection
Average Total Delay (seconds/vehicle)
A
<10
<10
B
> 10 and <20
> 10 and <15
C
>20 and _<35
>15 and <_25
D
>35 and <55
>25 and <_ 35
E
>55 and< 80
>35 and <_50
F
>80
>50
As can be seen in Table 2, the key intersections are currently operating at acceptable
levels of service.
4
Poudre School Distrie Larirner Country rblaintenance Facility ELB Engineering, LLC
Transportation Impact Stud 5401 Taylor Lane
October 2008 Fort Collins. CO 80528
III. Existing Conditions
A). Current Traffic
Recent peak hour turning movements at the key intersections were obtained during
August and October 2008.. The morning and afternoon peak hour traffic counts at the
key intersections are displayed in Figure 2. The peak hour counts were conducted in 15
minute increments for the periods of 7:00-9:00 AM and 4:00:-6:00 PM. The raw
information regarding the turning movements is provided in Appendix B.
B). Current Street System
The primary streets in the area of the development are the I-25 ramps, frontage road,
County Road 5 and Prospect Road. The project borders Prospect and CR5. Prospect is
considered an east -west four lane arterial on the City's Master Street Plan. County Road
5 from Prospect to Mulberry is also classified as a 4-lane arterial. However, both
roadways, in there current configuration adjacent to the site are two lane rural cross
sections with a speed limits of 45 mph. There are no bike lanes or sidewalks in the
immediate area.
The frontage road west of the site the site is a two lane roadway with a speed limit of 35
mph. There are no sidewalks or bike lanes on the frontage road. Land uses along the
frontage road are primarily agricultural.
The intersections of the western frontage road and both northbound and southbound
ramps with Prospect Road were signalized in the last several years to accommodate the
new rest area/visitor center located in the south west quadrant of the interchange.
The bridge over the frontage road is a two lane structure that has been identified by both
State and local officials as a deficient structure in terms of available capacity and the
issue of replacing the interchange has received significant discussion in the last few
years.
3
Poudre School District/Laritner Country Dlainterrance Facility ELH Engineering, LLC
Transportation bnpact Stud 5401 Tavlor Lane
October 2008 Fort Collins, CO 80528
Fort Calms
Downlown
Airpor.ca
Nxx i
Figure 1: Vicinity Map
K&hal Lj
14
Poudre School DistrictlLarimer Country Maintenance Facility ELB Engineering LLC
Transportation Impact Stud 5401 Tavlor Lane
Ociober 2008 Fort Collins, CO 80528
I. Introduction
This transportation impact study addresses the Poudre School District and Larimer
County Development located in the northwest quadrant at the intersection of Prospect
Road and Country Road 5 in Fort Collins, Colorado. The project entails the
development of a warehousing facility, vehicle maintenance facility for both PSD and
for Larimer County, and in the long-term, a new middle school. The project is
expected to be completed over a 20-year period in three separate phases. The site is
currently in agricultural use.
Figure 1 on the following page is a vicinity map displaying the location of the project.
II. Agency Discussions
Discussions with City staff indicated that a full traffic study as described in Chapter 4 of
the Larimer County Urban Area Streets Standards (LCUASS) would be appropriate for
this particular development. Staff also requested that an alternative modes analysis be
conducted as part of the TIS. Standard peak hours are used in the analyses during and
average weekday.
There are pending projects within the area to consider (NE and NW quadrants of the
interchange) and background traffic is assumed to be 1.5% per year. The short-range
horizon for the project is the year 2010; the mid-term horizon is the year 2015, and the
long range 2028. Appendix A contains the form (Attachment A), which outlines the
agreed to scope of the study
1
Poudre School DistrictlLarhner Country Maintenance Facility ELB Engineering, LLC
Transportation Impact Stud 5401 Tavlor Lane.
Ocrober 2008 Fort Collins, CO 80528