HomeMy WebLinkAboutTRANSFORT FACILITY EXPANSION - MJA - 23-10 - SUBMITTAL DOCUMENTS - ROUND 1 - TRAFFIC STUDYN
SHORT RANGE (2015) GEOMETRY. Figure 8
-/I f DELICH
r=ASSOCIATES
Transfort Facility Expansion TIS, March 2010
cu
0
Cif
0
0
tl
SHORT RANGE (2015) TOTAL
PEAK HOUR TRAFFIC
-// '-DELICH
"-I,/ r=ASSOCIATES
0
0
E
Y
Q
N
Figure 7
Transfort Facility Expansion TIS, March 2010
TABLE
Short Range (2015) Background Peak Hour Operation.
Trilby/Portner
(stop sign)
EB LT/T
A
A
SB LT/RT
Ef—
C
Trilby/Autumn Ridge
(stop sign)
WB LT
A
A
NB LT
C
C
NB RT_
B
NB APPROACH
C
C
TABLE 4
Short Range (2015) Total Peak Hour Operation
ref M1445� MEM"� N izlz I
fitdre'dtion, ME
mmw�_
M551
vemoht'!, 1M.'- t
W',viceZOAN,
Trilby/Portner
(stop sign)
EB LT/T
A
A
SB LT/RT
B
C
Trilby/Autumn Ridge
(stop, sign)
WB LT
A
A
NB LT
C
C
NB RT
B
B
NB APPROACH
C
C
—_/ALDELICH Transfort Facility Expansion TIS, March 2010
7/,fj—ASSOCIATES
A&
N
SHORT RANGE (2015) BACKGROUND
PEAK HOUR TRAFFIC Figure 6
LDELICH Transfort Facility Expansion TIS, March 2010
-7,1 rASSOCIATES
A&
N
SITE GENERATED PEAK HOUR TRAFFIC Figure 5
-Ali DELICH
-71 [-ASSOCIATES
Transfort Facility Expansion TIS, March 2010
SGALF-: 1 "=1000'
TRIP DISTRIBUTION
-//L-DELICH
(--ASSOCIATES
Figure 4
Transfort Facility Expansion TIS, March 2010
a
(a ,
0
a`)
c
0
a
is
Existing
Transfort I
'I
Facility
4,
------------------------------
Trilby Road ---- -
RECENT PEAK HOUR TRAFFIC Figure 3
_—/I L—DELICH Transfort Facility Expansion TIS, March 2010
ASSOCIATES
TABLE I
Recent'Peak Hour Operation
In�rsectton06, smakU
5 - %) '14
- 2*MN;V,'r'T,. "u, "
tO
C
Trilby/Portner
(stop sign)
EB LT/T
A
A
SB LTIRT
B
B
Trilby/Autumn Ridge
(stop sign)
WB LT
A
A
NB LT
C
C
NB RT
B
B
NB APPROACH
C
B
TABLE 2
Trip Generation
WPM P Hour'
'2 WiN
g Qj-'
710
Office
3 employees
3.32
10
0.42
1 0.06
0
0.08
0
0.38
1
DELICH Transfort Facility Expansion TIS, March 2010
pr—ASSOCIATES
RECENT PEAK HOUR TRAFFIC
_//iDELICH
71 r-ASSOCIATES
N
Figure 2
Transfort Facility Expansion TIS, March 2010
SCALE: 1 "=1000'
SITE LOCATION
--/J LDELICH
(=ASSOCIATES
Figure 1
Transfort Facililty Expansion TIS, March 2010
areas within 1320 feet of the proposed Transfort Facility Expansion: 1) the residential
neighborhood to the east of the site, 2) the residential neighborhood to the west of the
site, 3) the residential neighborhood to the southeast of the site, and 4) the mobile home
park southwest of the site. Currently there are sidewalks adjacent to the site along
Trilby Road east of Portner Road and along Portner Road. Appendix F contains a
Pedestrian LOS Worksheet. The level of service C threshold is not achieved for some
of the factors for three of the pedestrian destinations. The likelihood of an affinity
between these residential destinations and the Transfort Facility is very small.
. Based upon Fort Collins bicycle LOS criteria, there are no bicycle destinations
within 1320 feet of the Transfort Facility Expansion. This site connects directly to bike
lanes on Trilby Road, which achieves level of service C.
Currently, this area is not served by Transfort.
The College/Trilby intersection has some physical inefficiencies that cause
excessive delays at the intersection. The drainage pans, across Trilby Road, slow east -
west crossing time and the left -turns from College Avenue to Trilby Road. The length of
the westbound left -turn lane is short due to the close access to the 7-11 site in the
southeast corner. The combination of this short left -turn lane and high volume of
westbound left turns occasionally blocks the westbound through/right-turning traffic.
The lack of eastbound and westbound right -turn lanes and small corner radii at the
northeast and southwest corners holds the right -turning movements until the east -west
traffic has a green light. These are all inefficiencies that were recently observed. The
improvements that would have an impact on the added bus traffic would be a
westbound right -turn lane, larger corner radii in the northeast corner, and elimination of
the drainage pan on the east leg of Trilby Road. Buses leave (5:30-6:30 am) from the
Transfort Facility before the morning peak hour and return (6:45-7:45 pm) to the
Transfort Facility after the evening peak hour. Buses do not customarily return or leave
in the middle of the day, since refueling is not necessary. Therefore, the Transfort
buses are not significantly impacted by the inefficiencies at the College/Trilby
intersection.
It is concluded that, with expansion of the Transfort Facility Expansion, the future
level of service at the key intersections will be acceptable. The recommended geometry
is shown in Figure 8. The level of service for pedestrian, bicycle, and transit modes will
be acceptable.
��--DELICFi Transfort Facility Expansion TIS, March 2010
r=ASSOCIATES
Figure 2 shows recent peak hour counts at the Trilby/Portner and Trilby/Autumn
Ridge intersections. The count data at the Trilby/Portner and Trilby/Autumn Ridge
intersections were obtained in March 2010. Raw traffic data is provided in Appendix B.
Table 1 shows the current peak hour operation of the Trilby/Portner and Trilby/Autumn
Ridge intersections. Calculation forms are provided in Appendix C. A description of
level of service for unsignalized intersections from the 2000 Highway Capacity Manual and
a table showing the Fort Collins Motor Vehicle LOS Standards (Intersections) are also
provided in Appendix C. The key intersections operate acceptably during the peak hours.
The Transfort Facility Expansion site is in an area termed "Low density mixed use
residential." In areas termed "low density mixed use residential," acceptable overall
operation at unsignalized intersections during the peak hours is defined as level of
service F or better, which is considered to be normal in an urban environment.
Figure 3 shows the site plan for the Transfort Facility Expansion. The Transfort
Facility Expansion will consist of a new bus canopy, chassis wash expansion, and a
CNG fueling facility. This will also include hiring three new employees. Trip
Generation, 8th Edition, ITE was used as the reference document in calculating the trip
generation. Table 2 shows the trip generation for the Transfort Facility Expansion. This
trip generation was discussed and agreed to in the scoping discussions.
The trip distribution for this site is shown in Figure 4. The trip distribution was
determined using the existing traffic counts, knowledge of the existing and planned
street system, -development trends, and engineering judgment. Figure 5 shows the site
generated traffic assignment of the Transfort Facility Expansion.
Figure 6 shows the short range (2015) background peak hour traffic at the
Trilby/Portner and Trilby/Autumn Ridge intersections. Background traffic volume
forecasts for the short range (2015) future were obtained by reviewing historic counts in
the area. The current peak hour traffic was factored by 2 percent per year (1.10) to
obtain the short range background peak hour traffic. Table 3 shows the short range
(2015) background peak hour operation at the Trilby/Portner and Trilby/Autumn Ridge
intersections. Calculation forms are provided in Appendix D. The key intersections will
operate acceptably with the existing control and geometry.
Figure 7 shows the short range (2015) total peak hour traffic at the Trilby/Portner
and Trilby/Autumn Ridge intersections. Table 4 shows the short range (2015) total peak
hour operation at the Trilby/Portner and Trilby/Autumn Ridge intersections. Calculation
forms are provided in Appendix E. The Trilby/Portner and Trilby/Autumn Ridge
intersections will operate acceptably during the peak hours. Figure 8 shows the short
range (2015) geometry at the Trilby/Portner and Trilby/Autumn Ridge intersections.
This is the existing geometry.
The Transfort Facility Expansion site is in an area within which the City requires
pedestrian, bicycle, and transit level of service evaluations. Appendix F shows a map of
the area that is within 1320 feet of the Transfort Facility Expansion. The Transfort Facility
Expansion site is located. within an area termed as "Other," which sets the level of
service threshold at LOS C for all measured categories. There are three destination
--/T' DELICH Transfort Facility Expansion TIS, March 2010
[—ASSOCIATES
DELICH ASSOCIATES Traffic & Transportation Engineering
2272 Glen Haven Drive Loveland, Colorado 80538
Phone: (970) 669-2061 Fax: (970) 669-5034 �7/ 1 / r
TO
MEMORANDUM
Kurt Ravenschlag, Transfort
Matt Newman, Aller-Linge-Massey
Ward Stanford Fort Collins Traffic Operations
Matt Wempe, Fort Collins Transportation Planni
FROM: Joe/Matt Delich
DATE: March 22, 2010
SUBJECT: Transfort Facility Expansion Transportation Impact Study
(File: 1008ME01)
This memorandum addresses the transportation impacts of the proposed
Transfort Facility Expansion. The Transfort Facility Expansion site is located in the
northeast quadrant of the Trilby/Portner intersection, in Fort Collins, Colorado. The site
location is shown in Figure 1. The Transfort Facility Expansion will consist of a new bus
canopy, chassis wash expansion, and a CNG fueling facility. The bus canopy portion
the Transfort Facility Expansion is currently vacant. The chassis wash expansion and
CNG fueling facility will be within the current Transfort Facility Site. Transfort is adding
two new buses to the fleet that is based at this site with the potential of 2-3 additional
employees. The scope of this study was discussed with the Fort Collins Traffic
Operations Engineer. The Base Assumptions form is provided in Appendix A.
The primary streets near the Transfort Facility Expansion site are Trilby Road
and Portner Road. Trilby Road is adjacent to (south of) the Transfort Facility site. It is
an east -west street classified as a four -lane arterial street on the Fort Collins Master
Street Plan. Currently, Trilby Road is a two-lane road with a center turn lane east of
Portner Road. The Trilby/Portner and Trilby/Autumn Ridge intersections are T-
intersections. At the Trilby/Portner intersection, Trilby Road has an eastbound left-
turn/through lane and a westbound through/right-turn lane. Currently parking is allowed
on the north side of Trilby Road, adjacent to this site. At the Trilby/Autumn Ridge
intersection, Trilby Road has a westbound left -turn lane, a through lane in each
direction, and an eastbound right -turn lane. Portner Road is adjacent to (west of) the
Transfort Facility Expansion. It is a north -south street classified as a local street on the
Fort Collins Master Street Plan. At the Trilby/Portner intersection, Portner Road has all
southbound movements combined into a single lane. At the Trilby/Autumn Ridge
intersection, Autumn Ridge Drive has a separate northbound left -turn lane and right -turn
lane. The Trilby/Portner and Trilby/Autumn Ridge intersections are stop sign controlled
on Portner Road and Autumn Ridge Drive, respectively. There are sidewalks along
Portner Road, Autumn Ridge Drive, and Trilby Road, east of Portner Road. There are
no sidewalks along Trilby Road, west of Portner Road. There are bicycle lanes along
Trilby Road and Autumn Ridge Drive.