HomeMy WebLinkAboutGLOBAL VILLAGE ACADEMY II - SITE PLAN ADVISORY REVIEW - SPA150001 - SUBMITTAL DOCUMENTS - ROUND 1 - TRAFFIC STUDYDELICH Global Village Academy, Phase 2 TIS, January 2015
ASSOCIATES
TABLE OF CONTENTS
I. INTRODUCTION ........................................................................................................ 1
II. EXISTING CONDITIONS .......................................................................................... 2
Land Use ......................................................................................................................... 2
Streets ............................................................................................................................. 2
Existing Traffic ................................................................................................................. 5
Existing Operation ........................................................................................................... 5
Pederstrian Facilities ....................................................................................................... 8
Bicycle Facilities .............................................................................................................. 8
Transit Facilities .............................................................................................................. 8
Observations ................................................................................................................... 8
III. PROPOSED DEVELOPMENT ............................................................................... 10
Trip Generation ............................................................................................................. 10
Trip Distribution ............................................................................................................. 12
Trip Assignment ............................................................................................................ 12
Background and Total Traffic Projections ...................................................................... 12
Signal Warrants ............................................................................................................. 12
Operation Analysis ........................................................................................................ 17
Geometry ...................................................................................................................... 17
School Access and On-Site Circulation ......................................................................... 21
Pedestrian Level of Service ........................................................................................... 25
Bicycle Level of Service ................................................................................................ 25
Transit Level of Service ................................................................................................. 25
IV. CONCLUSIONS .................................................................................................... 26
DELICH Global Village Academy, Phase 2 TIS, January 2015
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LIST OF TABLES
1. Current Peak Hour Operation .................................................................................... 7
2. Trip Generation ....................................................................................................... 10
3. Short Range (2019) Total Peak Hour Operation ..................................................... 18
4. Parent Vehicle Arrival Pattern ................................................................................. 24
LIST OF FIGURES
1. Site Location ............................................................................................................. 3
2. Existing Geometry ..................................................................................................... 4
3. Recent Peak Hour Traffic .......................................................................................... 6
4. Site Plan .................................................................................................................. 11
5. Trip Distribution ....................................................................................................... 13
6. Site Generated Peak Hour Traffic ........................................................................... 14
7. Short Range (2019) Background Peak Hour Traffic ................................................ 15
8. Short Range (2019) Total Peak Hour Traffic ........................................................... 16
9. Short Range (2019) Geometry ................................................................................ 20
10. On-Site Circulation System ..................................................................................... 22
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. Short Range (2019) Total Peak Hour Operation
E. Pedestrian/Bicycle Level of Service Worksheets
DELICH Global Village Academy, Phase 2 TIS, January 2015
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I. INTRODUCTION
This intermediate transportation impact study (TIS) addresses the capacity,
geometric, and control requirements at and near the proposed Global Village Academy,
Phase 2. The proposed Global Village Academy, Phase 2 is to be located in the
northwest quadrant of the Taft Hill/Horsetooth intersection in Fort Collins, Colorado. It is
an addition to the existing Global Village Academy building at this location.
During the course of the analysis, numerous contacts were made with the Global
Village Academy staff, other project team members, and the City of Fort Collins Traffic
Engineering 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). Since this is a school, it was determined that the peak hours
should be the typical morning peak hour and the school dismissal time (2:30pm-3:45pm).
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;
- Provide analyses of school access and on-site circulation;
- Conduct level of service evaluation of pedestrian, bicycle, and transit modes of
transportation;
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II. EXISTING CONDITIONS
The location of the proposed Global Village Academy, Phase 2 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. There are residential uses to the
west, north, east, and south of the site. There is a school (Olander) and a park (Spring
Canyon Park) west of the site. The center of Fort Collins lies to the northeast of the
proposed Global Village Academy, Phase 2.
Streets
The primary streets near the proposed Global Village Academy, Phase 2 site are
Taft Hill Road, Horsetooth Road, Bronson Street, and Silver Trails Drive. Figure 2
shows a schematic of the existing geometry at the Taft Hill/Horsetooth,
Horsetooth/Silver Trails, Taft Hill/Bronson, and Bronson/Silver Oaks intersections.
Taft Hill Road is east of (adjacent to) the proposed Global Village Academy,
Phase 2 site. It is a north-south street classified as a four-lane arterial according to the
Fort Collins Master Street Plan. Currently, Taft Hill Road has a four-lane cross section,
north of Horsetooth Road transitioning to a two-lane cross section, south of Horsetooth
Road. At the Taft Hill/Horsetooth intersection, Taft Hill Road has a northbound and a
southbound left-turn lane and two through lanes in each direction. Northbound and
southbound right turns are made from the right-most through lane. At the Taft
Hill/Bronson intersection, Taft Hill Road has a northbound and a southbound left-turn
lane and two through lanes in each direction. The Taft Hill/Horsetooth intersection has
signal control. The Taft Hill/Bronson intersection has stop sign control on Bronson
Street. The posted speed limit in this area of Taft Hill Road is 40 mph.
Horsetooth Road is south of (adjacent to) the proposed Global Village Academy,
Phase 2 site. It is an east-west street classified as a two-lane collector, west of Taft Hill
Road and a four-lane arterial, east of Taft Hill Road according to the Fort Collins Master
Street Plan. Currently, Horsetooth Road has a two-lane cross section. At the Taft
Hill/Horsetooth intersection, Horsetooth Road has an eastbound and a westbound left-
turn lane, a through lane in each direction, and an eastbound and westbound right-turn
lane. At the Horsetooth/Silver Trails intersection, Horsetooth Road has all movements
combined into a single lane. The Horsetooth/Silver Trails intersection has stop sign
control on Silver Trails Drive. The posted speed limit in this area of Horsetooth Road is
35 mph, west of Taft Hill Road and 40 mph, east of Taft Hill Road.
Taft Hill Road
Horsetooth Road
Bronson Street
Silver
Trails
Harmony
Road
SCALE: 1"=1000'
SITE LOCATION Figure 1
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EXISTING GEOMETRY Figure 2
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Horsetooth Road
Silver Oaks
Drive
Bronson Street
Taft Hill Road
Silver Trails Drive
Site Access
Site Access
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Bronson Street is north of (adjacent to) the proposed Global Village Academy,
Phase 2 site. It is an east-west street classified as a local street according to the Fort
Collins Master Street Plan. Currently, Bronson Street has a two-lane cross section. At
the Taft Hill/Bronson intersection, Bronson Street has all movements combined into a
single lane. At the Bronson/Silver Oaks intersection, Bronson Street has all movements
combined into a single lane. The Bronson/Silver Oaks intersection has stop sign control
on Silver Oaks Drive. The posted speed limit in this area of Bronson Street is 25 mph.
Silver Trails Drive is west of the proposed Global Village Academy, Phase 2 site.
It is a north-south street classified as a local street according to the Fort Collins Master
Street Plan. Silver Trails Drive only has a north leg at the Horsetooth/Silver Trails
intersection. Currently, Silver Trails Drive has a two-lane cross section. At the
Horsetooth/Silver Trails intersection, Silver Trails Drive has all movements combined
into a single lane. The posted speed limit in this area of Silver Trails Drive is 25 mph.
Silver Oaks Drive is north of the proposed Global Village Academy, Phase 2 site.
It is a north-south street classified as a local street according to the Fort Collins Master
Street Plan. The south leg at the Bronson/Silver Oaks intersection-Site Access
intersection is the north driveway of Global Village Academy. Currently, Silver Oaks
Drive has a two-lane cross section. At the Bronson/Silver Oaks-Site Access
intersection, Silver Oaks Drive and the Site Access have all movements combined into
a single lane. The posted speed limit in this area of Silver Oaks Drive is 25 mph.
Existing Traffic
Recent peak hour traffic volumes are shown in Figure 3. The traffic counts at the
Taft Hill/Horsetooth, Taft Hill/Bronson, Horsetooth/Silver Trails, and Bronson/Silver
Oaks intersections were obtained in November 2014. Raw traffic count data is provided
in Appendix B.
Existing Operation
The Taft Hill/Horsetooth, Taft Hill/Bronson, Horsetooth/Silver Trails, and
Bronson/Silver Oaks intersections were evaluated and the peak hour operation is
displayed in Table 1. Calculation forms are provided in Appendix C. The key
intersections current meets the City of Fort Collins Motor Vehicle LOS Standard during
the morning and school dismissal peak hours. At the Taft Hill/Bronson intersection, the
calculated delay for the morning peak hour eastbound approach is commensurate with
level of service F. The intersections were evaluated using techniques provided in the
2010 Highway Capacity Manual. A description of level of service for signalized and
unsignalized intersections from the 2010 Highway Capacity Manual is provided in
Appendix C. Table 4-3 (revised per staff comments regarding type of intersection)
showing the Fort Collins Motor Vehicle LOS Standards (Intersections) is also provided
in Appendix C. The Global Village Academy, Phase 2 site is in an area termed “low
RECENT PEAK HOUR TRAFFIC Figure 3
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7:30-8:30 AM/2:45-3:45 PM
Silver Oaks
Drive
Horsetooth Road
52/57
774/470
141/93
55/34
753/527
108/184
135/73
110/72
73/41
149/210
64/113
108/127
10/18
999/722
2/7
71/53
921/716
8/10
11/10
1/0
8/23
20/9
1/4
1/2
4/2
124/68
97/79
59/116
6/3
160/117
Bronson Street
Taft Hill Road
Silver Trails Drive
0/4
0/0
8/14
7/2
0/0
3/8
0/1
9/14
9/17
0/7
39/50
43/23
Site
31/18
1/0
16/35
81/44
7/7
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TABLE 1
Current Peak Hour Operation
Intersection Movement Level of Service
AM PM
Taft Hill/Horsetooth
(signal)
EB LT C C
EB T C D
EB RT A A
EB APPROACH C C
WB LT C C
WB T C D
WB RT C C
WB APPROACH C C
NB LT A A
NB T/RT B B
NB APPROACH B B
SB LT A A
SB T/RT B B
SB APPROACH B A
OVERALL B B
Taft Hill/Bronson
(stop sign)
EB LT/T/RT F (57.5 secs) C
WB LT/T/RT C D
NB LT B A
SB LT B A
Horsetooth/Silver Trails
(stop sign)
EB LT/T A A
SB LT/RT B B
Bronson/Silver Oaks-Site Access
(stop sign)
EB LT/T/RT A A
WB LT/T/RT A A
NB LT/T/RT A A
SB LT/T/RT A A
Silver Trails/Site Access
(stop sign)
WB LT/RT A A
SB LT/T A A
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density mixed use residential.” In areas termed “low density mixed use residential,”
acceptable operation at signalized intersections during the peak hours is defined as
level of service D or better. At unsignalized arterial/arterial, arterial/collector, or
arterial/local intersections, acceptable operation is considered to be at level of service F
for any approach leg. In such areas, it is expected that there would be substantial
delays to the minor street movements during the peak hours. This is considered to be
normal in urban areas. At unsignalized collector/local intersections, acceptable
operation is considered to be at level of service C for any approach leg. A northbound
right-turn lane at the Taft Hill/Horsetooth intersection is required with existing traffic.
Southbound right-turn lanes at the Taft Hill/Horsetooth intersection and at the Taft
Hill/Bronson intersection are required with existing traffic. Typically, when turn lanes are
shown to be required based on current volumes and do not exist, they are not built
unless the operation at the subject intersection is determined to be unacceptable. The
subject intersections operate acceptably.
Pedestrian Facilities
There are sidewalks along both sides of Taft Hill Road. There are sidewalks
along both sides of Bronson Street, Silver Trails Drive, and Silver Oaks Drive. These
sidewalks were constructed prior to the current standards. Horsetooth Road has
sidewalk along both sides of the street east of Silver Trails Drive.
Bicycle Facilities
There are bicycle lanes along Taft Hill Road and Horsetooth Road.
Transit Facilities
Currently, this area of Fort Collins is served by Transfort Route 12. It operates
along Taft Hill Road and Horsetooth Road with a bus stop at the Taft Hill/Horsetooth
intersection.
Observations
The Global Village Academy (Phase 1) was opened in August 2014. The current
population is 330 students in Kindergarten and Grades 1-8, and 28 students in the Pre-
Kindergarten. There are 22 staff members at the site.
During traffic counting, observations were conducted at the existing site
accesses with regard to function, congestion, and neighborhood issues. In addition, the
on-site circulation was also observed. The observations were discussed with the Global
Village Academy staff, the project team, and Fort Collins Traffic Operations staff. Many
of the observations were raised at the neighborhood meeting held on November 24,
2014.
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At the start and dismissal times, there was significant on-street parking by
parents on Silver Trails Drive. Some of the parking was not legal. There was
congestion at the Silver Trails/Site Access intersection such that the Global Village
Academy staff did not allow entrances to the site at this access, but directed vehicles to
the north to enter the site from Bronson Street. It was observed that students exited
vehicles on Silver Trails Drive and Horsetooth Road while vehicles were in the travel
lanes. Parent vehicles parked on the north side of Horsetooth Road in the designated
bike lane. On-site circulation seemed to be confusing, although staff attempted to
control things at the on-site intersection. The circulation plan suggested in the Global
Village Academy, Phase 1 TIS was not followed.
Following discussions about the observations, a number of suggestions were
made which are reflected in the current site plan. The new site plan, along with
analyses and recommendations in this TIS, should enable the traffic aspects of the
Global Village Academy, Phase 2 to operate more efficiently and reduce/mitigate the
neighborhood impacts.
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III. PROPOSED DEVELOPMENT
Figure 4 shows a site plan of the Global Village Academy, Phase 2. The Global
Village Academy staff indicated that this school will have a total of 780 students. The
short range analysis (Year 2019) includes development of the Global Village Academy,
Phase 2 and an appropriate increase in background traffic due to normal growth and
other potential developments in the area. Since this is an intermediate level
transportation impact study, a long range analysis is not required. The site plan shows
that the Global Village Academy, Phase 2 will utilize the existing accesses on Silver
Trails Drive and Bronson Street.
Trip Generation
Trip generation is important in considering the impact of a development such as this
upon the existing and proposed street system. Trip Generation, 9th Edition, ITE is
customarily used to estimate the daily and peak hour trip generation for the proposed land
uses in a TIS. However, following traffic counting at the existing Global Village Academy
and discussions with City Traffic Operations staff it was suggested that rates based upon
traffic counts would better reflect the expected trip generation. Details are provided in
Appendix A. The calculated rates already reflect both busing and carpooling, therefore no
adjustments were made for these aspects. A trip is defined as a one-way vehicle
movement from origin to destination. Table 2 shows the expected trip generation on a
daily and peak hour basis. The trip generation of the Global Village Academy, Phase 2
resulted in 874 daily trip ends, 346 morning peak hour trip ends, and 245 afternoon peak
hour trip ends. As will be discussed later in this TIS, a specific peak hour traffic access
procedure is recommended that will reduce/mitigate neighborhood impacts. Therefore,
Table 2 also shows the trip generation for Global Village Academy reflecting the total
population of 780 students.
TABLE 2
Trip Generation
Use Size
AWDTE AM Peak Hour PM Peak Hour
Rate Trips Rate In Rate Out Rate In Rate Out
Phase 2
Charter School (Pre-K-8) 422 students 2.07 874 0.44 186 0.38 160 0.30 127 0.28 118
Phase 1
Charter School (Pre-K-8) 358 students 2.07 742 0.44 159 0.38 135 0.30 109 0.28 101
Total with reduction 1616 345 295 236 219
SCALE: 1"=100'
SITE PLAN Figure 4
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SECOND FILING
SILVER
OAKS DR.
CO
CO
HORSETOOTH ROAD
100' RIGHT-OF-WAY
SILVER TRAILS DRIVE
54' RIGHT-OF-WAY
BRONSON STREET
54' RIGHT-OF-WAY
SOUTH TAFT HILL ROAD
100' RIGHT-OF-WAY
SILVER OAKS
P.U.D. THIRD FILING
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Trip Distribution
Trip distribution for the Global Village Academy, Phase 2 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 (2019) analysis future. The trip distribution was agreed
to by City of Fort Collins staff in the scoping discussions.
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 generation
and trip distribution process. It is recommended that Global Village Academy staff request
parents (exiting the site) going to the north on Taft Hill Avenue use the signal at the Taft
Hill/Horsetooth intersection. This route would be the safest and most efficient to go north
on Taft Hill Road. However, some parents may choose not to do this. Therefore, the
traffic assignment shows a portion making a left turn at the Taft Hill/Bronson intersection.
However, with regard to entrances to the site it is strongly recommended that Global
Village Academy staff require parents to follow the procedures discussed in this TIS. As
will be detailed later, there are two access functions: 1) parent drop-off/pick-up; and 2)
parent park/walk. The parent drop-off/pick-up function should enter the site via the
driveway to Bronson Street. The parent park/walk function should enter the site via the
driveway to Silver Trails Drive. The following traffic assignment reflects compliance with
the recommended entrance procedure. Figure 6 shows the site generated peak hour
traffic assignment.
Background and Total Traffic Projections
Figure 7 shows the short range (2019) background traffic projections.
Background traffic projections for the short range future horizon were obtained by
reviewing the North Front Range Regional Transportation Plan and various traffic
studies prepared for this area of Fort Collins. Based upon these sources, it was
determined that traffic volumes would increase by approximately 1.5% per year in the
short range future. Figure 7 shows the growth in traffic on the key streets, but does not
reflect the current Global Village Academy traffic. The site generated traffic (Figure 6)
reflects that for 780 students. Therefore, the background traffic was adjusted
accordingly. Figure 8 shows the short range (2019) total (site plus background) peak
hour traffic.
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. The Taft
Hill/Horsetooth intersection is currently signalized. Other key intersections do not meet
signal spacing requirements or volume warrants, and will not be signalized.
TRIP DISTRIBUTION Figure 5
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SITE
Horsetooth Road
Taft Hill Road
40%
20%
NOM
40%
Bronson Street
NOM
SITE GENERATED
PEAK HOUR TRAFFIC Figure 6
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7:30-8:30 AM/2:45-3:45 PM
Silver Oaks
Drive
Horsetooth Road
22/9
47/38
43/19
48/38
95/75
107/90
23/24
11/12
44/19
141/126
109/47
Bronson Street
Taft Hill Road
Silver Trails Drive
Site
109/47
141/126
94/75
141/113
95/76
11/10
143/113
236/189
154/123
SHORT RANGE (2019) BACKGROUND
PEAK HOUR TRAFFIC Figure 7
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7:30-8:30 AM/2:45-3:45 PM
Silver Oaks
Drive
Horsetooth Road
25/37
831/505
152/100
26/12
809/566
114/190
79/51
53/49
45/30
140/220
18/80
116/137
9/11
1006/747
2/8
32/41
962/751
9/11
7/8
1/0
5/16
21/10
1/4
1/2
4/2
5/4
3/4
66/125
6/3
172/126
Bronson Street
Taft Hill Road
Silver Trails Drive
8/2
3/9
0/7
42/49
0/1
10/15
SHORT RANGE (2019) TOTAL
PEAK HOUR TRAFFIC Figure 8
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7:30-8:30 AM/2:45-3:45 PM
Silver Oaks
Drive
Horsetooth Road
47/46
878/543
152/100
69/31
857/604
209/265
186/141
76/73
56/42
234/295
62/99
116/137
150/124
1113/837
2/8
127/117
1005/770
9/11
18/18
1/0
148/129
21/10
1/4
1/2
4/2
146/130
112/51
66/125
6/3
172/126
Bronson Street
Taft Hill Road
Silver Trails Drive
NOM
NOM
154/123
8/2
NOM
3/9
0/1
10/15
NOM
0/7
42/49
236/189
Site
9/6
NOM
9/7
109/47
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Operation Analysis
Capacity analyses were performed at the Taft Hill/Horsetooth, Taft Hill/Bronson,
Horsetooth/Silver Trails, Bronson/Silver Oaks-Site Access, and Silver Trails/Site Access
intersections. The operations analyses were conducted for the short range future,
reflecting a year 2019 condition.
Using the traffic volumes shown in Figure 8, the Taft Hill/Horsetooth, Taft
Hill/Bronson, Horsetooth/Silver Trails, Bronson/Silver Oaks-Site Access, and Silver
Trails/Site Access intersections will operate in the short range (2019) total traffic future as
indicated in Table 3 with the existing geometry. Calculation forms for these analyses are
provided in Appendix D. The key intersections will meet the City of Fort Collins Motor
Vehicle LOS Standard during the morning and school dismissal peak hours. At the Taft
Hill/Bronson intersection, the calculated delay for the morning and school dismissal peak
hour eastbound approach will be commensurate with level of service F and E,
respectively. At the Taft Hill/Bronson intersection, the calculated delay for the morning and
school dismissal peak hour westbound approach will be commensurate with level of
service E and F, respectively. This is considered to be normal during the peak hours at
stop sign controlled intersections along arterial streets. The Taft Hill/Horsetooth and Taft
Hill/Bronson intersections were analyzed with and without the southbound right-turn lane
with the short range (2019) total peak hour traffic. There are minimal changes in the level
of service with or without the southbound right-turn lane at the Taft Hill/Horsetooth and Taft
Hill/Bronson intersections.
Geometry
Figure 9 shows a schematic of the short range (2019) geometry. A southbound
right-turn lane is required at both the Taft Hill/Horsetooth and Taft Hill/Bronson
intersections. These right-turn lanes are required with the existing peak hour traffic
volumes. There is no change in the level of service with the added right-turn lane at the
Taft Hill/Bronson intersection. If these right-turn lanes are not built, the City may require
variance letters with regard to these lanes. A northbound right-turn lane is required at the
Taft Hill/Horsetooth intersection. However, Global Village Academy, Phase 2 adds no
traffic to this movement and the Taft Hill/Horsetooth intersection operates acceptably. As
mentioned earlier, when existing volumes warrant the subject right-turn lanes, but the
intersections operate acceptably without those lanes, they are typically not constructed. It
is recommended that the right-turn lanes not be built at this time. Based upon the morning
peak hour traffic forecast, a westbound right-turn lane is required at the Horsetooth/Silver
Trails intersection. If the City requires this right-turn lane, it appears that it would only
require a restriping exercise extending the two existing lanes further to the east. The right-
most westbound lane would become the right-turn lane. The need for an eastbound left-
turn lane at the Horsetooth/Silver Trails intersection and a westbound left-turn lane at the
Bronson/Silver Oaks-Site Access intersection was evaluated. Using LCUASS, Figure 8-1,
these left-turn lanes will not be required at these intersections.
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TABLE 3
Short Range (2019) Total Peak Hour Operation
Intersection Movement Level of Service
AM PM
Taft Hill/Horsetooth
(signal)
EB LT C C
EB T C D
EB RT A A
EB APPROACH C C
WB LT C C
WB T D D
WB RT C C
WB APPROACH C C
NB LT B A
NB T/RT B B
NB APPROACH B B
SB LT B A
SB T/RT B B
SB APPROACH B B
OVERALL B B
Taft Hill/Horsetooth
(signal)(SB RT)
EB LT C C
EB T C D
EB RT A A
EB APPROACH C C
WB LT C C
WB T D D
WB RT C C
WB APPROACH C C
NB LT A A
NB T/RT B B
NB APPROACH B B
SB LT B A
SB T B B
SB RT A A
SB APPROACH B A
OVERALL B B
Continued on next page
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Continued from previous page
TABLE 3
Short Range (2019) Total Peak Hour Operation
Intersection Movement Level of Service
AM PM
Taft Hill/Bronson
(stop sign)
EB LT/T/RT F (323.6 secs) E (48.9 secs)
WB LT/T/RT E (48.8 secs) F (55.8 secs)
NB LT B B
SB LT B B
Taft Hill/Bronson
(stop sign)(SB RT)
EB LT/T/RT F (242.3 secs) E (38.0 secs)
WB LT/T/RT E (40.6 secs) E (47.0 secs)
NB LT B B
SB LT B B
Horsetooth/Silver Trails
(stop sign)
EB LT/T A A
SB LT/RT B B
Bronson/Silver Oaks-Site Access
(stop sign)
EB LT/T/RT A A
WB LT/T/RT A A
NB LT/T/RT A A
SB LT/T/RT B C
Silver Trails/Site Access
(stop sign)
WB LT/RT A A
SB LT A A
SHORT RANGE (2019) GEOMETRY Figure 9
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Horsetooth Road
Silver Oaks
Drive
Bronson Street
Taft Hill Road
Silver Trails Drive
Site Access
Site Access
Existing
Required
Existing
Existing
Existing
Required
Required
Required
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School Access and On-Site Circulation
There are two access functions for the Global Village Academy at the beginning
and at the end of the school day. The trip generation section shows the inbound and
outbound traffic during the respective peak hours. However, since this site is somewhat
constrained, a rigorous analysis of the on-site circulation was requested. The grade
levels in the school are: Pre-Kindergarten, Kindergarten, and Grades 1 to 8. While the
size of a given grade can vary from year to year, the following analyses assume that
each grade will have the same number of students. At a maximum student population
of 780, it is assumed that each grade will have 78 students. The two on-site functions,
parent drop-off/pick-up and parent park/walk, have a bearing with regard to the on-site
circulation.
Research indicates that the parent drop-off/pick-up function primarily occurs in
Grades 1-8. Children in these grades are able to unload themselves (unbuckle seat
belts, open/close car doors) and load themselves (open/close car doors, buckle seat
belts) without significant adult assistance. Therefore, vehicles dropping-off/picking-up
students in these grades can be in the vehicle circulation system. The on-site
circulation system is depicted in Figure 10. The drop-off/pick-up area occurs along the
curb on the south side of the school (main doors). There are eight vehicle positions
along this curb. Therefore, under a managed condition, eight vehicles could arrive,
drop-off/pick-up, and leave simultaneously. The eight vehicles would be
metered/directed in and out by school staff. The vehicle queue would wrap around the
outer parking lot aisle. This aisle is wide enough that vehicles could be double stacked.
The on-site intersection would be kept clear by school staff. The queue would be
metered as it continued to the north, widening to a double stack area. The entire queue
could hold approximately 64 vehicles. These vehicles would exit either to Silver Trails
Drive or to the north to Bronson Street, depending on their desired destination.
Pre-Kindergarten and Kindergarten parents most often desire to park and walk
their child in/out of the school. For analysis purposes, it is assumed that 20 percent of
vehicular trip generation will use the park/walk function. These parents would use the
central portion of the south parking lot. This parking area would not have school staff
vehicles. There are 33 parking spaces plus four handicap parking spaces in this area.
The park/walk vehicles would enter from Silver Trails Drive. They would exit either to
Silver Trails Drive or to the north to Bronson Street, depending on their desired
destination. The site plan shows 13 parking spaces in the south portion of the parking
lot. These vehicles would be “buried” by the drop-off/pick-up vehicle queue during
these periods. Therefore, they should be occupied by school staff vehicles. The new
parking lot in the southwest portion of the site (24 parking spaces) could be used by
school staff or the park/walk function. However, the walk distance to the main door is
longer to this parking lot.
SCALE: 1"=100'
ON-SITE CIRCULATION SYSTEM Figure 10
DELICH
ASSOCIATES
Global Village Academy, Phase 2 TIS, January 2014
Page 22
SECOND FILING
SILVER
OAKS DR.
CO
CO
HORSETOOTH ROAD
100' RIGHT-OF-WAY
SILVER TRAILS DRIVE
54' RIGHT-OF-WAY
BRONSON STREET
54' RIGHT-OF-WAY
SOUTH TAFT HILL ROAD
100' RIGHT-OF-WAY
SILVER OAKS
P.U.D. THIRD FILING
PARK/WALK FUNCTION
STAFF PARKING
DROP-OFF/PICK-UP FUNCTION
DELICH Global Village Academy, Phase 2 TIS, January 2015
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Start of School
The following analysis assumes that there is a single start time at Global Village
Academy. Based upon data obtained at other schools, the parent vehicle arrival period
begins approximately 35 minutes before the bell. That data showed an increasing
arrival rate, in five minute increments, as depicted in Table 4. The largest concentration
(22%) occurs in the period ending five minutes before the bell. From the trip generation,
there will be 295 parent vehicles entering and leaving the site at the start of school. Of
these, 236 will be related to the drop-off function and 59 will be related to the park/walk
function. It is estimated that the drop-off function (entering the curb space, drop-off the
student, leave the curb space) takes 30 seconds. Fifty-two vehicles [(236)(0.22)] would
be in the queue in the peak five minute period. The 52 vehicles can be processed in
seven cycles (52/8 = 6.5 7). There are ten cycles in a given five minute period.
Therefore, the drop-off queue can be accommodated at a single start time for the
school.
It is expected that the park/walk function will be over a 15 minute period prior to
the bell. Approximately 45 percent of the parent vehicles will occur in the five minute
period prior to the bell (26 vehicles). The park/walk function takes approximately five
minutes (vehicle enter, walk child in/return, vehicle leave). Since there are 33
conventional parking spaces, the park/walk function can be accommodated at a single
start time for the school.
School Dismissal
The following assumes that there is a single dismissal time at Global Village
Academy. Based upon data obtained at other schools, the parent vehicle arrival period
begins approximately 30 minutes before the bell. That data showed an increasing
arrival rate, in five minute increments, as depicted in Table 4. When the bell rings, 65
percent of the parent vehicles are at the school. From the trip generation, there will be
236 parent vehicles entering and leaving the site at the school dismissal. Of these, 189
will be related to the pick-up function and 47 will be related to the park/walk function. It
is estimated that the pick-up function (enter the curb space, pick up the student, leave
the curb space) takes 40 seconds. There would be 123 vehicles in the queue at the
dismissal bell. Since the available queue can only accommodate 64 vehicles, the
queue would extend into Bronson Street. If half of the parent vehicles could be at
separate dismissal times, the vehicle queue could be accommodated on-site.
Therefore, it is recommended that the dismissal times be staggered by potentially up to
30 minutes.
It is expected that the park/walk function will be over a 15 minute period prior to
the bell and a five minute period after the bell. Approximately 85 percent of the parent
vehicles will arrive prior to the bell (40 vehicles). Since there are 33 conventional
parking spaces, the park/walk function cannot be accommodated with a single dismissal
time for the school. Therefore, it is recommended that the Pre-Kindergarten and
Kindergarten dismissal times be staggered.
DELICH Global Village Academy, Phase 2 TIS, January 2015
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TABLE 4
Parent Vehicle Arrival Pattern
Time
(5 minute increments)
Percent Entering Vehicles
Morning Afternoon
-35 3%
-30 6% 4%
-25 7% 4%
-20 11% 8%
-15 18% 9%
-10 19% 12%
-5 22% 16%
Bell 7% 12%
+5 2% 18%
+10 5% 12%
+15 5%
DELICH Global Village Academy, Phase 2 TIS, January 2015
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The foregoing analyses have demonstrated that the parent vehicle trip
generation can be accommodated with a single start time for the school. However, the
dismissal times should be staggered in order to keep the vehicle queuing on the Global
Village Academy site and adequately provide for parent parking.
The on-site circulation system is designed to provide a drop-off/pick-up area on
the south side of the school building. There is an on-site intersection which will have
both entering and exiting parent vehicles going through it. This intersection should be
signed DO NOT BLOCK. The exiting parent vehicles must be allowed to exit from the
front of the school in order for the drop-off/pick-up system to operate efficiently. This
must be enforced by the school administration.
Pedestrian Level of Service
Appendix E shows a map of the area that is within 1320 feet of the Global Village
Academy, Phase 2 development. There are four pedestrian destinations within 1320
feet of the Global Village Academy, Phase 2 development. These are: 1) the residential
area to the west of the site, 2) the residential area to the east of the site, 3) the
residential area to the south of the site, and 4) the residential area to the southeast of
the site. This site is in an area type termed “school walking area.” The minimum level
of service for “school walking area” is B, except for Visual Interest and Amenity which is
C. Acceptable pedestrian level of service will be achieved for all pedestrian
destinations. The Pedestrian LOS Worksheet is provided in Appendix E.
Bicycle Level of Service
There are no bicycle destinations within 1320 feet of the Global Village Academy,
Phase 2 development. The bicycle level of service is acceptable.
Transit Level of Service
This area of Fort Collins is served by Transfort Route 12. This route has a transit
stop at the Taft Hill/Horsetooth intersection, which is adjacent to this site.
DELICH Global Village Academy, Phase 2 TIS, January 2015
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IV. CONCLUSIONS
This study assessed the impacts of the Global Village Academy, Phase 2 on the
street system in the vicinity of the proposed development in the short range (2019) future.
As a result of this analysis, the following is concluded:
- The development of the Global Village Academy, Phase 2 is feasible from a traffic
engineering standpoint. The Global Village Academy, Phase 2 will generate
approximately 874 daily trip ends, 346 morning peak hour trip ends, and 245
afternoon peak hour trip ends. At full development (780 students), the Global
Village Academy will generate approximately 1616 daily trip ends, 640 morning
peak hour trip ends, and 455 afternoon peak hour trip ends.
- The Taft Hill/Horsetooth, Taft Hill/Bronson, Horsetooth/Silver Trails, Bronson/Silver
Oaks-Site Access, Silver Trails/Site Access intersections currently meet the City of
Fort Collins Motor Vehicle LOS Standard.
- The Taft Hill/Horsetooth intersection is currently signalized. Other key intersections
do not meet signal spacing requirements or volume warrants.
- In the short range (2019) future, given development of the Global Village Academy,
Phase 2 and an increase in background traffic, the Taft Hill/Horsetooth, Taft
Hill/Bronson, Horsetooth/Silver Trails, Bronson/Silver Oaks-Site Access, and Silver
trails/Site Access intersections will meet the City of Fort Collins Motor Vehicle LOS
Standard.
- The short range (2019) geometry is shown in Figure 9. A southbound right-turn
lane is required at both the Taft Hill/Horsetooth and Taft Hill/Bronson intersections
with the existing peak hour traffic. There is minimal change in the level of service
with the added right-turn lane at the Taft Hill/Horsetooth intersection and Taft
Hill/Bronson intersections. A northbound right-turn lane is required at the Taft
Hill/Horsetooth intersection. However, Global Village Academy, Phase 2 adds no
traffic to this movement and the Taft Hill/Horsetooth intersection operates
acceptably. As mentioned earlier, when existing volumes warrant the subject right-
turn lanes, but the intersections operate acceptably without those lanes, they are
typically not constructed. It is recommended that the right-turn lanes not be built at
this time. Based upon the morning peak hour traffic forecast, a westbound right-
turn lane is required at the Horsetooth/Silver Trails intersection. If the City requires
this right-turn lane, it appears that it would only require a restriping exercise
extending the two existing lanes further to the east. The right-most westbound lane
would become the right-turn lane.
- The detailed analyses of the on-site circulation indicates that the available queue
and south parking lot will allow a single start time for the school. However, these
analyses indicate that two dismissal times will be necessary to accommodate the
traffic on the site itself.
DELICH Global Village Academy, Phase 2 TIS, January 2015
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- Acceptable level of service is achieved for pedestrian, bicycle, and transit modes
based upon the measures in the multi-modal transportation guidelines and future
improvements to the street system in the area.
NOM
141/126
95/51