Traffic Impact StudyTRAFFIC IMPACT STUDY
SILVERBROOK ESTATES
KALISPELL, MONTANA
NL-mI WEST i \\ SKO`N', ! o E.
JANUARY 15, 2(�C.
119 N. 3RD STREET
P.O. Box 1153
LivINGSTON, MT 59047
406.222.0104
F Ax: 406.222.1007
`vww.ctagroup.com
SILVERBROOK ESTATES
KALISPELL, MONTANA
TABLE OF CONTENTS
TRAFFIC IMPACT STUDY
Introduction........................................................................................................................................1
Locationand Access..........................................................................................................................
I
Figure1: Vicinity Map..........................................................................................................2
Figure2: Proposed Site Layout.............................................................................................3
Pre -Development Conditions.............................................................. :.........................................4
Tablet: Summary of Pre -Development Intersection Cffions .........................................4
Figure 3: Existing Traffic Volumes ................... ... V. . ..........................................5
Figure 4: Existing Intersection Turning Move Estimates.................................6
TripGeneration...................................................... ......:................................... ............................7
Table 2: Trip Generation Summary ............................... . ........................7
TripDistribution.............................................................. ......:...........................................................
7
TripAssignment...................................a...,:°....:;;.................... 11..........................................................8
Analysisof Impacts .......................... ......_............ ..,..,.................................................
8
Tril;� Distribution and Proje : r p Assignment................................9 Figure 5: Generalized
i t Figure 6: Future (Y1T'. i "
,,, h-Prod : c t) Turning iovement Estimates...........................................10
Figure T Futur,with Project; Trip AssiL41linents................................................................to
..� '4 .. ' . , n.,
Ta e 3: Summary c Pc�:,�'eoTnt,-rsection Conditions .......................................11
Conclusions, dX;ec; �����t�endatro��s ......................... ............................................................................
12
Appendices
Appendi;. ,A, — Traffic (_'hunts and Pre -Development Trip Determination
Appendix E -- Pre-L krvetopment Synchro Worksheets
Appendix C — Tfj) Generation & Internal Capture Worksheets
Appendix D — Turn Lane Warrant Analyses
Appendix E — Post -Development Synchro Worksheets
n
■
SILVERBROOK ESTATES
KALISPELL, MONTANA
INTRODUCTION
TRAFFIC IMPACT STUDY
This Traffic Impact Study documents the trip generation and distribution methodologies for the
proposed Silverbrook Estates subdivision. Silverbrook Estates is proposed to be a 330 acre mixed -use
development north of Kalispell in Flathead County, Montana. Silverbrook Estates will consist of
approximately 600 residential dwelling units (both single family and attached), 95,000 SF of
commercial/retail space, and a 25,000 SF grocery store. The site is located west of Highway 93 and
south of Church Drive.
This study also documents the impact of trips generated by the proposedd development on the existing
State and County road network.
LOCATION AND ACCESS
c,11 os
The subject property is bounded on the east by Highv4'�y 93, on the west by the IS611water River, and
on the north by Church Drive, as shown in Figure 1. HR this vicirilt= Church Drive iI; a two-lane
county road. Highway 93 is a four -lane state highway.
The development proposes one access point ID�it5, Highway 93 arld three access points onto Church
Drive. A connection is also planned to the undeveloped property to the south. Figure 2 is a site plan
showing the access points described.
The Montana Department of Transportation is cur etoly planning a project to widen and construct
access controls for HighwayQ3 north of the proposal site. A project to widen the highway along the
proposal's Highway 93 fi-outage is also iiil planning -stages. As part of the State's proposed projects, it
is anticipated that the intersection of w'11111-CII Drive withHighway 93 will be reconstructed as a grade -
separated interchange. The easten injost access i-rojin Church Drive into Silverbrook would lie
approximately,, of the s.outhbound ramp for the reconfigured Highway 93/Church Drive
interchange. Siiverbrook's cez,ter accepts from Church Drive would lay another 330 feet west; with its
westernmost access an additional 1440 411-et to the west.
Accesses along Hisdrway 93 would! ;also be reconstructed as part of the State's project, including the
intersection of Tronstad Road will, Highway 93 near the southern end of the subject property.
Silverbrook's sole High=,,,�ay 9 access would be configured to align with Tronstad Road,
approximately 4000 feet soi all l of Church Drive. Other intermediate accesses to the subject property
are shown in the State's preliminary plans for the Highway 93 improvements along the subject
property (dated October 2006). However, the western accesses shown on the State's plans would not
be necessary with Silverbrook's site plan as currently proposed.
Curb/apron radii for the proposed access locations will be designed to accommodate the largest
vehicles expected to enter the site (WB-40).
Page I
SILVERBROOK ESTATES
KALISPELL, MONTANA
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Figure 1: Vicinity Map
3 We Dr
TRAFFIC IMPACT STUDY
SUBJECT PROPERTY
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CIVIL
ENGINEERS
SILVERBROOK ESTATES
KALISPELL, MONTANA
C
Figure 2: Proposed Site Layout
TRAFFIC IMPACT STUDY
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I11V11 VV 1-11 7J /
TRONSTAD
ROAD ACCESS
(''T-TT TR f N T)T?T-XTP
Page 3
SILVERBROOK ESTATES
KALISPELL, MONTANA
PRE -DEVELOPMENT CONDITIONS
TRAFFIC IMPACT STUDY
The site is currently undeveloped farmland. The surrounding area is characterized as developing along
the highway, with lower density residential land uses further from the main road. Figure 3 shows
existing ADT for the surrounding road network. (Existing ADT counts are taken from 1\MT and
Flathead County records.)
Highway 93 has a design speed of 110 km/hr (68 mph). Church Drive is anticipated to have an urban
speed limit of less than 45 mph. , }
The primary intersections of interest for the Silverbrook Estates subc�iivision include the three site
accesses to Church Drive, the intersections comprising the prop:�,cd :'march Drive interchange and the
intersection of Highway 93 and Tronstad Road. Since the proposed Sily,- brook Estates subdivision
and the State's proposed improvements to Highway 93 arc expected to be ifiiilt concurrently
(beginning in 2007/2008), the proposed interchange at ('hurch Drive is to be c,0n,sidered as existing in
the pre -development condition for the purposes of thiS� analysis. According to th,u State's preliminary
plans for the Highway 93 road improvements, the Tronstad Road intersection is expected to operate as
a full -access (all movements allowed) intersection, with the TnJnsiad Road legs being stop -controlled.
The intersection of Church Drive and Highway 93 is proposed to be constructed as a "junior
interchange," with right turn movements oniy Mitering and exiting, Highway 93. No extra lanes are
proposed for the Church Drive intersections xith dle i:lighway 93 ramps, but adequate apron radii are
proposed. The ramps will stop controlled. Fic;i.ire 4 sho-,k s the study intersections and their estimated
peak hour movements for 2008. t Turfing have been derived from existing ADT
and 24-hour counts for High,x;ty 93, C'i,,,,rch Drive, rind Tronstad Road, normalized to year 2008 using
a 3%growth rate, by compering relative volumes using a 55%-45% directional distribution. See
Appendix A for details.)
Each of the study intersections t«s -been analyZLd A nth the pre -development volumes using Synchro.
The results of analyses are summarized in Table 1. Detailed Snychro worksheets
are located ;- I" ppendix B.
Table 1: Suimnan of Pre-DeVOODinend 12itersection Conditions
Intern=cTion
Approach Delay (sec) & LOS
EB WB NB SB
Intersection
Delay (sec) & LOS
AM Peak Hour
NB Ramp & Hwy 93
10.0 - A
0.0
0.0
0.1 -A
NB Ramp & Church Drive
7.2 - A
0.0
8.4 - A
7.8 - A
SB Ramp & Hwy 93
10.4 - B
0.0
0.0
0.1 -A
SB Ramp & Church Drive
0.0
0.0
8.7 - A
1.2 - A
Hwy 93 & Tronstad Road
14.8 - B
0.0
0.5 - A
1.2 - A
PM Peak Hour
NB Ramp & Hwy 93
11.0 - B
0.0
0.0
0.2 - A
NB Ramp & Church Drive
7.2 - A
0.0
8.4 - A
7.8 - A
SB Ramp & Hwy 93
10.6 - B
0.0
0.0
0.1 -A
SB Ramp & Church Drive
0.0
0.0
8.8 - A
2.1 -A
Hwy 93 & Tronstad Road
18.8 - C
0.0
0.7 - A
1.5 - A
Page 4
SILVERBROOK ESTATES
KALISPELL, MONTANA
x
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Figure 3: Existing Traffic Volumes
TRAFFIC IMPACT STUDY
Key: Existing ADT
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CIVIC
ENGINEERS
SILVERBROOK ESTATES TRAFFIC IMPACT STUDY
KALISPELL, MONTANA
Figure 4: Existing Intersection Turning Movement Estimates (2008)
Page 6
SILVERBROOK ESTATES
KALISPELL, MONTANA
TRIP GENERATION
TRAFFIC IMPACT STUDY
The current proposal would construct approximately 95,000 SF of retail/commercial space, with a
25,000 SF grocery store, 120 townhomes, and 480 single-family detached dwelling units as a single
mixed -use development. Trip generation estimates have been prepared using the Institute of
Transportation Engineers (ITE) Trip Generation report (7 h Edition). Land Use Code (LUC) 820,
Shopping Center has been used to estimate trips to and from the retail/commercial portion of the
proposal. Trip generation estimates for the grocery store are based on LUC 850, Supermarket. Trip
generation for residential uses is based on LUC 210, Single -Family Detached Housing and LUC 230,
Residential Condominium / Townhouse.
The proposed commercial area of the development is expected to be occupied by typical service -
oriented retail businesses (such as dry cleaners, hair salons, etc,;i, with some office space. The grocery
store will be a stand-alone facility located near, but separate, loom, the retail/commercial center. The
methodology described in the ITE Trip Generation Hang hook (2" d Edition) h«s, been used to estimate
appropriate reductions to the trip generation estimates due to the internal capture "A'trips between the
commercial and residential portions of the developmeH.t. The Try Ceneration Hano/took pass -by rate
for LUC 820, Shopping Center and LUC 850, Superman!{Pt ha,e also been applied to the commercial
trips to estimate a reduction due to existing highway users patronizing the new businesses as pass -by
trips.
Table 2 contains a summary of the trip generation estimates for AD IF, AM peak hour trips, and PM
peak hour trips. Appendix C con'la; nis detailed ealculatioAs for trap generation and internal capture.
'fable 2: Trin Generation Summmr,
Total Trips
ADT
AM PHT
PM PHT
Shopping Center
--
4o 7"
98
356
Supermarket
2556
81
261
Sing le -Fa rriily Detached FloLising
4594
360
485
Reside!flRal Condominium/T{}}�,nhouse
1 703
i
53
62
Less Internal Capture
(2376)
(62)
(212)
Less Pass -By
(1709)
(47)
(164)
Total Trips
7847
483
789
TRIP DISTRIBUTION
A generalized trip distribution for the site can be estimated by analyzing the locations of potential trip
destinations and the relative volumes of the existing traffic on the roads in the vicinity of the proposed
site. Figure 5 exhibits a generalized trip distribution for the proposed development. It also shows the
ADT expected to be generated by the proposal.
Page 7
SILVERBROOK ESTATES
KALISPELL, MONTANA
TRAFFIC IMPACT STUDY
Primary destinations are primarily to the north (40%) and south (50%). Local traffic to the east (7%)
and west (3%) would also account for a portion of primary trips. Most trips are expected to utilize
Highway 93.
TRIP ASSIGNMENT
Figure 5 also shows project trip assignments for each of the proposed access locations for both AM
and PM peak hours. It is expected that 80% of site traffic would utilize the Church Drive access
points, with 20% utilizing the Highway 93 access, based on the distribution of lots throughout the
proposed development. Traffic to the Church Drive intersections was assigned as follows: West
Access — 15%, Center Access — 15%, East Access — 50%.
M.
ANALYSIS OF IMPACTS
W
Turning Lane Warrants
Each of the study intersections was analyzed to determi>n!c if tui i igig lane warrants were met for right or
left turn lanes, as applicable. The procedure found in the imlontana Department of Transportation's
Road Design Manual (Chapter 13) was util 1 led. Detailed info- n-.ation is included in Appendix D.
It was determined that both northbound and soi ithbounu ran - ins to N.<_ hway 93 warranted both
acceleration and deceleration lanes ( right turn lanes). 1nn adaivion�, the eastbound leg of the intersection
of Church Drive and the south ound ra, ,p warr&-as a might turn lane. The westbound approach of
Church Drive with the East Access road %;Could also warrant a left turn lane with anticipated volumes.
,aaa.
Page 8
SILVERBROOK ESTATES
KALISPELL, MONTANA
4 (12) 8 (9)
1 (4) -a /� 26 (78)
M
M
O
3%
H
110 (129) 81 (248)
161 (185) AO -
Church Chive
A
53 (66)-11.- .4--31 (84)
1 (4)-'4& AOM126(787
� � N
IrAL
V�
31 (34)mmOr
Vfkmm 10 (30)
35 (41)"q%,
t r
�N
156)
Tronstad
Figure 5: Generalized Trip Distribution and Project Trip Assignment
TRAFFIC IMPACT STUDY
161 (185) -%,
7%
H
Key : AM (PM)
Peak Hour Trips
Page 9
SILVERBROOK ESTATES
KALISPELL, MONTANA
21 (47) 35 (45)
1 (4) —% f A- 26 (78)
M O I
123 (148) ..► 94 (167)
176 (201) --k f /OM
1
Church Drive
Q (D 0
LU
0
A
81 (101) 58 �.1
1 (4) �a r
4t£'�£'8£ ),
]S lil i ®®
®�-,)(III)- )
3 (8) "%k
Af''o "6 (266)
1
1
■■
oo .
ti ®I
°;L
Tronstad
31 (34) .#V
V%MM 18 (20)
5 (6)
-Ar 7 (8)
35 (41)
AP— 46 (53)
Figure 6: Future (With -Prof ect) Turning Movement Estimates
TRAFFIC IMPACT STUDY
12 r 148) _or f�M_
� F
176(201) --%,
Key: AM (PM)
Peak Hour Trips
Page 10
SILVERBROOK ESTATES
KALISPELL, MONTANA
Level of Service
TRAFFIC IMPACT STUDY
Figure 6 shows the future (with -project) turning movement estimates for the study intersections for
both AM and PM Peak Hours. Each of the study intersections have been analyzed with the with -
project volumes using Synchro. (Warranted turning lanes have been included in the Post -Development
analyses for the East Access Road and Church Drive. However, acceleration/deceleration lanes for
Highway 93 have not been modeled. Instead, each of the Highway 93 turning movements has been
modeled as a channelized right turn.) The results of the post -development analyses are summarized in
Table 3. Detailed Synchro worksheets are located in Appendix E.
Table 3: Summary of Post-DOVeIor)nlellt Intersection Conditions
Intersection
Approach Delay (sec) & L_;3,,S",
Si
EB WB NE3__ ""
Intersection
Delay (sec) & LOS
AM Peak Hour
NB Ramp &Hwy 93
11.7 - B
0.0
0.0
1.1 -A
NB Ramp & Church Drive
7.4 - A
0.0
8.7 - A
8.0 - A
SB Ramp & Hwy 93
13.0 - B
0.0
0.0
1.6 - A
SB Ramp & Hwy Church Drive
0.0
0.0
10.3 - B
; .6 - A
Church Drive & West Access
0.0
4.3 - A
8.7 - r;
4.9 - A
Church Drive & Center Access
0.0
2.4 - A
0.0 - r;
3.1 -A
Church Drive & East Access
0.0
4.0 - A
10,'i - B
5.2 - A
Hwy 93 &Tronstad Road
21.1 -C
.37 - C
0.4t
0.7
2.4 - A
Hwy 93 & Tronstad Road (w/ RT)
19.0 - C
16.9 - m,
0.3
0.7
2.3 - A
PM Peak Hour
NB Ramp & Hwy 93
15.8 -
0.0
0.0
1.2 - A
NB Ramp & Church Drive
7.5 - A
9.5 - A
8.8 - A
SB Ramp & Hwy 93
15.8 -- C
0.0
0.0
1.6 - A
SB Ramp &Hwy Church v;}; ive
O.0
0.0
15.0 - B
3.5 - A
Church Drive &West Access
y 3
4.9 - A
8.9 - A
4.9 - A
Church Drive & Center Access
0.0
-3 - A
9.3 - A
3.3 - A
Church Drive & 1=.ast access
0.0
4.6 --A
11.1 -B
5.4 - A
Hwy 93 & Trcr stad Road
: I
33.0 - E
43.9 - E
0.6
0.8
4.8 - A
Hwy 93 & Ironstad Road (w;` 1\T)
29,1? - D
29.8 - D
0.6
0.8
3.6 - A
Mitigation of Impact:s
While each of the study intersections is expected to operate at an acceptable LOS during both AM and
PM peak hours, the eastbound and westbound approaches at the Tronstad Road intersection are
expected to operate at a degraded Level of Service. This intersection was also modeled with a separate
right turn lane for both eastbound and westbound legs. This addition improved the expected LOS from
E to D for the PM peak hour. Additional channelization at this intersection would not improve the
approach LOS for the eastbound and westbound movements. Overall intersection LOS would be
acceptable under either scenario.
The southbound ramp at Highway 93 (LOS C) would be expected to operate at a higher LOS with an
acceleration lane rather than the channelized stop -controlled movement model.
Page II
SILVERBROOK ESTATES TRAFFIC IMPACT STUDY
KALISPELL, MONTANA
CONCLUSIONS AND RECOMMENDATIONS
The proposed Silverbrook Estates development will add a significant number of trips to an intersection
and corridor currently slated for improvement by the Montana Department of Transportation. While
most study intersections would accommodate the development's trips at acceptable levels of service
with the geometries identified in the State's preliminary plans, additional channelization should be
considered for some locations. The following additions/improvements are recommended in the MDT
right-of-way:
l . Construct northbound and southbound acceleration and deceleration lanes at the Highway 93
ramps at Church Drive.
2. Construct a right turn lane on the eastbound leg of the intersection between Church Drive and
the southbound ramp.
3. Construct right turn pockets at the eastbound and westbound Tronst"'Id Road approaches to
Highway 93.
4. Eliminate the westbound approaches to the s1 it s ct property north of Troustaad Road and south
of Church Drive. These approaches are not needed for the Silverbrook development.
The following improvements are recommended to be constructed with the Silverbrook development:
5. Construct a left turn lane on the westbound 1 egr of Church " rive at the development's East
Access Road.
If the recommended improvements am constructec1, title surrounding road network will accommodate
the trips from the Silverbrook Estates dc-volopmemt ,r,ith acceptable levels of service.
Page 12
SILVERBROOK ESTATES TRAFFIC IMPACT STUDY
KALISPELL, MONTANA
APPENDIX A
Traffic Counts and Pre -Development Trip Determination
3"�� C, 2
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11/15/2006 12:53 4054447671 MDT PLANNING DIV PAGE a5/05
10/28/04 Montana Depar sparta�iork Page: 1
14 : 38: 07 Tr�afC a ` ti.on
2701 Prospect, �,' le , MT 59620
(406) 444-6121
+�* Weekly Site Summa.Vy Report
Site ID 1042141.5 Week Starts : Oct 26, 2004 Mon
Info 1 05991215 Week Ends : Oct 31, 2004 Sun
Info 2 us93 mp1215 nb Adj- Factor I.00
Lane 1 north, Normal, Pres Sensor
-w~---w-- - -- ----- ----Daily-
HourMon Tug Wed Thu pri SatSun Wkday Wkend
Starts 25 26 27 28 29 30 31 Avg. Avg. Avg.
1 13 13 13 13
2 11 13 12 12
3 6 16 11 11
4 18 20 19 19
5 44 29 37 37
6 147 145 146 146
7 426 401. 414 414
a 397 409 403 403
9 308 350 319 319
10 315 314 315 315
11 365 324 345 345
12pm 340 386 363 363
1 403 366 385 385
2 391 421 406 409
3 457 482 47D 470
4 542 535 539 539
5 614 609 612 612
6 403 463 433 433
7 287 281 284 284
a 181 2444 213 213
9 158 215 187 187
10 91 109 100 100
11 35 58 47 47
TOTALS 5860 6196 129 5098 6098
_....,...___._..,,_.__,._._.._...__..._-__-•-_..,_....--------------------------------------
Avg WI) 96.2$ 101.7t 2.1% WkD&y Total: 22195
.Avg Ay 96.2% 101.7% 2.1* WkEnd Total. 0
.AM Peak 07:00 06:00 00:00 Gr nd 'Total --a12183
count 426 409 38
PM Peek 17:00 17:00
Count 614 609
....................................................... H _ - - - -r - - - - - - - - - - - - - - - - - - -
11/15/2006 12:53 4064447671 MDT PLANNING DIV PAGE 04/05
10/28/04 Moniara I)Opa#
r sporta,tion Face: 1
14:38:57 `Iraffi t C Lion
2701 Pros�pe , MT 59620
(406) 444-6121
* * 3Weekl.y Site Surmaxy Report t
i .!. r�.. _ L- p
Site ID : 30421415 Week Starts 0 t 25■ 004 14on
Info 1 : 05991215 Week Ends Oct 31., 2004 Sum
Info 2 : us93wp1215 sb { J=,7 i�l. Adj. Factor : 1.00
Lane 1 . (mo lane intro) , North 1, P44s Sensor
W_rT___--___YW-__- .._
HourMonTur�Wed Thu Fri $at Sun
Daily Wkday Wkend
Starts 25 26 27 .28 29 30 31 Avg, Avg. Avg.
--------------------------------------------------------------------------------
12am 76 36 31 31
1 12 24 1.8 1.8
2 7 13 10 10
13 14 la 14
4 31 14 23 23
5 52 7 0 61. 61
6 207 207 207
7 453 453 453 453
8 462 462 462 462
9 398 405 402 402
10 380 371 376 376
11 409 406 408 408
12prn :?47 4n.1 3�7 397
1 392 385 389 389
2 404 454 429 429
3 50x 509 505 505
4 554 555 555 533
5 563 551 $57 557
6 344 408 376 376
7 165 212 189 189
8 147 171 159 159
9 123 131 127 127
1.0 52 70 61 61
11 33 60 47 47
TOTALS 5771. 6354 171 6256 6256
Avg WD 51.9% 101..2% 2.7% WkDay 'fatal: 12296
Avg Dy 91.99; 101.21 2.7% WkEnd Total: 0
^.w
,AM Peak 06:00 09:00 05:00 Grand Total,:12296
Count 462 452 70
ISM Peak 17:00 16:00 C �J
--
`-_-______563 555 (�(.� !(�4 (.�����`
____________-..___—_ ____.._----._.— .� _w_____—_
Cie q0
Ij —
11/15/2006 12:53 4064447671 MDT PLANNING DIV PAGE 02/05
03/1/45 Montana Depax t artatit�r� Page: 1
10:5�4:45 Traff* t 0 C on
2701. Frospe , 8 , MT 59620
(406) 444-6121
* + * Single Channel Weakly
sit ID 101$27.15 AdO. Factor L.pO
In 1 05991159
In, 0 2 ue93 n reserve <�S7(:A-y
Lane 1 nb, Normal, Axle Sensor, i.vide by 2
Week-03J07/05 t0 03/13/05
Hour
Mon
Tue;
Wed Thu
Fri Weekday
Sat Sun Weekend
Avg.
Starts
w-----
7
a
9 10
11 Average12
13 Average
Day
12arn
----------
-
25
_ -------------------------------------------•-----------
20
-�
28
2
21
10
10
65
5
54
66
so
6
200
244
222
222
7
389
4L9
404
404
8
437
497
� 467
467
9
399
364
382
382
10
403
412
406
408
11
399
403
403.
401.
12pm
478
476
•477
'197
477
1
433
441
37
437
2
433
478
56
456
3
554
619
587
4
586
551
5159
569
5
681
671
676
676
6
436
407
422
422
7
256
257
257
257
6
229
240
235
235
138.
�38
11-._-_-13�----74
,,tt
_66
- --38
.. - ____
._---- _--------_----
-----�-----_
�6832
TOTAS�S
66G1
69D6
51-
5832
Weekdays: 13618
Weekend:
7 Day:
13618
11/15/2006 12:53 4064447671 MDT PLANNING DIV
03/15/05 Montana Depar t We
ortation
10:55:00 Traf ion
2701 Prospe v .► ► MT 59620
f,,._.ff% p f (406) 444-6121.
CIL�YL �^fly.
Site ID 301827L5
Into 1 : 0599iis9
Into 2 u 93 ri reseLnre
Lane I on, Normal, Axle
*** Single Cba=el Weakly ***
PAGE 03/05
(1;
'76- - �
Adj. Factor : 1.00
Sensor, Dide by 2
week-03%07/05-to 03/13/05
page: 1
Hour
Mon
T'ue
Wed Thu
Pri Weekday Sat
Bun Weekend
Av
Starts
7
8
9 10
11 Average 1.2
13 Average
Da�.
----------
--------------
--------------------
-�-_-------_--__----__--____-_
-113
llam
12
73
113
12
20
3
20
20
6
197
228
213
213
7
567
567
567,
567
8
520
582
551
52
9
455
444
450'.
50
10
424
475
430
450
11
473
514
494
�94
12pm
496
435
466
468
1
467
468
469
2
450
470
460
460
3
531
541
536
536
4
612
612
612
912
5
558
61.6
587
S 7
6
338
384
361
1
7
194
176
185
1 5
8
190
124
157
1 7
132 37
131 17
17
131
21
30
TOTALS --677Q-__7070
---
47 -- -
-...5979__ --
6979
Weekdays: 13887
Weekend:
7 Day:
13887
Intersection: Highway 93 & Church Drive
AM Peak Hour Estimated Intersection Turning Movements
Date: Based on 2003 ADT Count of Church Drive and Normalized to Hwy 93 24-hour tube count from 2005
Hwy. 93
2005 Trips i 968 i
1 530 438 1
I 13 517 I
25 0
Church Drive 51 12 994 0 Future Leg
26 0
14
I 531 438 I
969 1 1
Hwy. 93
Hwy. 93
2008 Trips 1 1058 1
3.0% Growth Rate 1 579 479 1
I I
14 565 0
---------------- -.-.0.-.-.-.-.-.
27 0 0
Church Drive 55 13 1086 0 0 Future Leg
28 0 0
I I
580 479 0
I 1059 I
Hwy. 93
Hwy. 93
Project Trips 212
1 71 141 1
i i
1 57 14 1
138 0
Church Drive 409 110 454 0 Future Leg
271 0
161
1 1
1 175 112 1
287
Hwy. 93
Hwy. 93
Future Trips (With Project) 1270
1 650 620 1
I 71 579 0 I
---------------- ----o-----------
165 0 0
Church Drive 464 123 1540 0 0 Future Leg
299 0 0
176 ________
. .I 94 497 0 j
1 755 591 1
1346
Hwy. 93
J:\Jobs\93church\traffic\counts2.xls Mark Westenskow, PE
Intersection:
Highway 93 & Tronstad
AM Peak Hour
Estimated Intersection Turning
Movements
Date:
Based on 2004 ADT Count of Tronstad and Normalized to Hwy 93 24-hour tube count from 2005
Hwy. 93
2005 Trips
i
1033
i
1
565
468
1
----------------
I
531
34
I _._.31._._._._._._
0
68
Future Leg
0
1101
37 133 Tronstad
0
65
----------------1
437
311-----------------
I
568
468
I
1
1036
1
Hwy. 93
Hwy. 93
2008 Trips
j
1129
j
3.0% Growth Rate 1
617
512
1
1
11
0 580
37
1
0
0 74
Future Leg
0 0
1203
40 145 Tronstad
0 0
71
0
478
34
I
620
512
I
I
1132
I
Hwy. 93
Hwy. 93
Project Trips
287
j
175
112
j
1
14 141
20
Future Leg
34
105 31
347
2 12
37 Tronstad
71 5
35
25
0
18
71
I
1
176
89
I
01
265
Hwy. 93
Hwy. 93
Future Trips (With Project)
1416
1
792
624
1
----------------
1
14 721
57
I ----44------------
34
2 86
Future Leg
105 31
71 5
1550
40 182 Tronstad
96
35
. 1
18
549
34j_._._._._._._._._
1
796
601
1
1397
Hwy. 93
J:\Jobs\93church\traffic\counts2.xls Mark Westenskow, PE
Intersection: Highway 93 & Church Drive
PM Peak Hour Estimated Intersection Turning Movements
Date: Based on 2003 ADT Count of Church Drive and Normalized to Hwy 93 24-hour tube count from 2005
Hwy. 93
2005 Trips
1207
574
633
- — - — - — - — - — - — - — - — 16
558
o
----o------------
33
Church Drive 65 17
32
1239
0 0
0
0
0 Future Leg
1 573
633
1
j
1206
j
Hwy. 93
Hwy. 93
2008 Trips
1319
3.0% Growth Rate 1
627
692
1
.—.—.—.—.—.—.—.J 17
36
610
0
I .——.—.—.—.—„
0�
0 0
Church Drive 71 19
1354
0
0 Future Leg
35 0
0
16
673
0
I19
r
1 626
692
1
j
1318
j
Hwy. 93
Hwy. 93
Project Trips i
381
1
218
163
1
I 174
44
I
422
0
Church Drive 736 129
814
0 Future Leg
314
0
_______185
j
248
34
1 .—.—.—.—.—.—.—.,
01
229
282
511
Hwy. 93
Hwy. 93
Future Trips (With Project) i
1700
i
1
845
855
1
I 191
_-_-_-_-_-_-_-_-
654
0
I _-_o_-_-_-_-_-_,
458
Church Drive 807 148
349 0
2168
0 0
0
0
0 Future Leg
201
I 855
974
I
1
1829
1
Hwy. 93
J:\Jobs\93church\traffic\counts2.xls Mark Westenskow, PE
Intersection:
Highway 93 & Tronstad
PM Peak Hour
Estimated Intersection Turning Movements
Date:
Based on 2004 ADT Count of Tronstad and Normalized to Hwy 93 24-hour tube count from 2005
Hwy. 93
2005 Trips
1293
614
679
573
41
Future Leg
0
0
0
1378
86
40
86
172 Tronstad
.j
633
45j
1
613
678
1
j
1291
j
Hwy. 93
Hwy. 93
2008 Trips
1413
3.0% Growth Rate 1
671
742
01
._._._._._._._._.I
0
0 626
45
I50 ._._._._._
0 94
Future Leg
0 0
1506
44
188 Tronstad
0 0
0
94
r
1
670
741
j
1411
j
Hwy. 93
Hwy. 93
Project Trips
i
511
229
282
I
44 163
22
I
107
8 38
Future Leg
188 34
621
66 Tronstad
81 6
28
.I
55
218
I
1
204
273
477
Hwy. 93
Hwy. 93
Future Trips (With Project)
i
1924
i
1
900
1024
1
I
44 789
67
I
Future Leg
107
188 34
81 6
2127
8 132
44
122
254 Tronstad
41
I
874
1014
I
1888
Hwy. 93
J:\Jobs\93church\traffic\counts2.xls Mark Westenskow, PE
SILVERBROOK ESTATES
KALISPELL, MONTANA
TRAFFIC IMPACT STUDY
APPENDIX B
Pre -Development Synchro Worksheets
HCM Unsignalized Intersection Capacity Analysis
6: Tronstad & Highway 93 II1/15/2007
--1. i
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
0
Vii
t
Sign Control
Stop
Stop
Free
Free
Grade
0%
0%
0%
0%
Volume (veh/h)
0
0
0
40
0
34
0
478
34 37
580 0
Peak Hour Factor
0.92
0.92
0.92
0.92
0.92
0.92
0.92
0.92
0.92 0.92
0.92 0.92
Hourly flow rate (vph)
0
0
0
43
0
37
0
520
37 40
630 0
Pedestrians
Lane Width (ft)
Walking Speed (ft/s)
Percent Blockage
Right turn flare (veh)
Median type
Raised
Raised
Median storage veh)
1
1
Upstream signal (ft)
pX, platoon unblocked
vC, conflicting volume
1008
1267
315
934
1249
278
630
557
vC1, stage 1 conf vol
711
711
538
538
vC2, stage 2 conf vol
297
557
396
711
vCu, unblocked vol
1008
1267
315
934
1249
278
630
557
tC, single (s)
7.5
6.5
6.9
7.5
6.5
6.9
4.1
4.1
tC, 2 stage (s)
6.5
5.5
6.5
5.5
tF (s)
3.5
4.0
3.3
3.5
4.0
3.3
2.2
2.2
p0 queue free %
100
100
100
87
100
95
100
96
cM capacity (veh/h)
286
275
681
340
285
719
948
1010
Direction, Lane #
EB 1
WB 1
NB 1
NB 2
NB 3
SB 1
SB 2
SB 3
Volume Total
0
80
0
346
210
40
420
210
Volume Left
0
43
0
0
0
40
0
0
Volume Right
0
37
0
0
37
0
0
0
cSH
1700
449
1700
1700
1700
1010
1700
1700
Volume to Capacity
0.00
0.18
0.00
0.20
0.12
0.04
0.25
0.12
Queue Length 95th (ft)
0
16
0
0
0
3
0
0
Control Delay (s)
0.0
14.8
0.0
0.0
0.0
8.7
0.0
0.0
Lane LOS
A
B
A
Approach Delay (s)
0.0
14.8
0.0
0.5
Approach LOS
A
B
Intersection Summary
Average Delay 1.2
Intersection Capacity Utilization 33.7% ICU Level of Service A
Analysis Period (min) 15
2008 Pre -Development 1/10/2007 AM Peak Hour Synchro 6 Report
CTA Inc Page 1
HCM Unsignalized Intersection Capacity Analysis
9: Ramp 1 & Highway 93 1 /15/2007
t
Movement EBL EBR NBL NBT SBT SBR
Lane Configurations
tt
t
Sign Control
Stop
Free
Free
Grade
0%
0%
0%
Volume (veh/h)
0
15
0
479
565 14
Peak Hour Factor
0.92
0.92
0.92
0.92
0.92 0.92
Hourly flow rate (vph)
0
16
0
521
614 15
Pedestrians
Lane Width (ft)
Walking Speed (ft/s)
Percent Blockage
Right turn flare (veh)
Median type
Raised
Median storage veh)
0
Upstream signal (ft)
pX, platoon unblocked
vC, conflicting volume
882
315
614
vC1, stage 1 conf vol
622
vC2, stage 2 conf vol
260
vCu, unblocked vol
882
315
614
tC, single (s)
6.8
6.9
4.1
tC, 2 stage (s)
5.8
tF (s)
3.5
3.3
2.2
p0 queue free %
100
98
100
cM capacity (veh/h)
294
681
961
Direction, Lane #
EB 1
NB 1
NB 2
SB 1
SB 2
Volume Total
16
260
260
409
220
Volume Left
0
0
0
0
0
Volume Right
16
0
0
0
15
cSH
681
1700
1700
1700
1700
Volume to Capacity
0.02
0.15
0.15
0.24
0.13
Queue Length 95th (ft)
2
0
0
0
0
Control Delay (s)
10.4
0.0
0.0
0.0
0.0
Lane LOS
B
Approach Delay (s)
10.4
0.0
0.0
Approach LOS
B
Intersection Summary
Average Delay
0.1
Intersection Capacity Utilization
26.1 %
ICU Level of Service A
Analysis Period (min)
15
2008 Pre -Development 1/10/2007 AM Peak Hour Synchro 6 Report
CTA Inc Page 2
HCM Unsignalized Intersection Capacity Analysis
10: Church Drive & Ramp 1 1/15/2007
Movement EBT EBR WBL WBT NBL NBR
Lane Configurations
'+
Sign Control
Free
Free
Stop
Grade
0%
0%
0%
Volume (veh/h)
13
15 0
13
14
0
Peak Hour Factor
0.92
0.92 0.92
0.92
0.92
0.92
Hourly flow rate (vph)
14
16 0
14
15
0
Pedestrians
Lane Width (ft)
Walking Speed (ft/s)
Percent Blockage
Right turn flare (veh)
Median type
None
Median storage veh)
Upstream signal (ft)
pX, platoon unblocked
vC, conflicting volume
30
36
22
vC1, stage 1 conf vol
vC2, stage 2 conf vol
vCu, unblocked vol
30
36
22
tC, single (s)
4.1
6.4
6.2
tC, 2 stage (s)
tF (s)
2.2
3.5
3.3
p0 queue free %
100
98
100
cM capacity (veh/h)
1582
976
1055
Direction, Lane #
EB 1
WB 1
NB 1
Volume Total
30
14
15
Volume Left
0
0
15
Volume Right
16
0
0
cSH
1700
1582
976
Volume to Capacity
0.02
0.00
0.02
Queue Length 95th (ft)
0
0
1
Control Delay (s)
0.0
0.0
8.7
Lane LOS
A
Approach Delay (s)
0.0
0.0
8.7
Approach LOS
A
Intersection Summary
Average Delay
2.2
Intersection Capacity Utilization
13.3% ICU Level of Service A
Analysis Period (min)
15
2008 Pre -Development 1/10/2007 AM Peak Hour Synchro 6 Report
CTA Inc Page 3
HCM Unsignalized Intersection Capacity Analysis
11: Ramp 2 & Highway 93 1/15/2007
i
Movement WBL WBR NBT NBR SBL SBT
Lane Configurations
r
0
tt
Sign Control
Stop
Free
Free
Grade
0%
0%
0%
Volume (veh/h)
0
13
466
13 0
579
Peak Hour Factor
0.92
0.92
0.92
0.92 0.92
0.92
Hourly flow rate (vph)
0
14
507
14 0
629
Pedestrians
Lane Width (ft)
Walking Speed (ft/s)
Percent Blockage
Right turn flare (veh)
Median type
Raised
Median storage veh)
0
Upstream signal (ft)
pX, platoon unblocked
vC, conflicting volume
828
260
507
vC1, stage 1 conf vol
514
vC2, stage 2 conf vol
315
vCu, unblocked vol
828
260
507
tC, single (s)
6.8
6.9
4.1
tC, 2 stage (s)
5.8
tF (s)
3.5
3.3
2.2
p0 queue free %
100
98
100
cM capacity (veh/h)
317
738
1054
Direction, Lane #
WB 1
NB 1
NB 2
SB 1
SB 2
Volume Total
14
338
183
315
315
Volume Left
0
0
0
0
0
Volume Right
14
0
14
0
0
cSH
738
1700
1700
1700
1700
Volume to Capacity
0.02
0.20
0.11
0.19
0.19
Queue Length 95th (ft)
1
0
0
0
0
Control Delay (s)
10.0
0.0
0.0
0.0
0.0
Lane LOS
A
Approach Delay (s)
10.0
0.0
0.0
Approach LOS
A
Intersection Summary
Average Delay
0.1
Intersection Capacity Utilization
23.3%
ICU Level of Service A
Analysis Period (min)
15
2008 Pre -Development 1/10/2007 AM Peak Hour Synchro 6 Report
CTA Inc Page 4
HCM Unsignalized Intersection Capacity Analysis
12: Church Drive & Ramp 2 1/15/2007
Movement EBL EBT WBT WBR SBL SBR
Lane Configurations
+'
Sign Control
Free
Free
Stop
Grade
0%
0%
0%
Volume (veh/h)
13
0
0
0 0
13
Peak Hour Factor
0.92
0.92
0.92
0.92 0.92
0.92
Hourly flow rate (vph)
14
0
0
0 0
14
Pedestrians
Lane Width (ft)
Walking Speed (ft/s)
Percent Blockage
Right turn flare (veh)
Median type
None
Median storage veh)
Upstream signal (ft)
pX, platoon unblocked
vC, conflicting volume
0
28
0
vC1, stage 1 conf vol
vC2, stage 2 conf vol
vCu, unblocked vol
0
28
0
tC, single (s)
4.1
6.4
6.2
tC, 2 stage (s)
tF (s)
2.2
3.5
3.3
p0 queue free %
99
100
99
cM capacity (veh/h)
1623
978
1085
Direction, Lane #
EB 1
WB 1
SB 1
Volume Total
14
0
14
Volume Left
14
0
0
Volume Right
0
0
14
cSH
1623
1700
1085
Volume to Capacity
0.01
0.00
0.01
Queue Length 95th (ft)
1
0
1
Control Delay (s)
7.2
0.0
8.4
Lane LOS
A
A
Approach Delay (s)
7.2
0.0
8.4
Approach LOS
A
Intersection Summary
Average Delay
7.8
Intersection Capacity Utilization
13.3% ICU Level of Service A
Analysis Period (min)
15
2008 Pre -Development 1/10/2007 AM Peak Hour Synchro 6 Report
CTA Inc Page 5
HCM Unsignalized Intersection Capacity Analysis
6: Tronstad & Highway 93 II1/15/2007
--1. i
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
0
Vii
t
Sign Control
Stop
Stop
Free
Free
Grade
0%
0%
0%
0%
Volume (veh/h)
0
0
0
44
0
50
0
692 49
45
626 0
Peak Hour Factor
0.92
0.92
0.92
0.92
0.92
0.92
0.92
0.92 0.92
0.92
0.92 0.92
Hourly flow rate (vph)
0
0
0
48
0
54
0
752 53
49
680 0
Pedestrians
Lane Width (ft)
Walking Speed (ft/s)
Percent Blockage
Right turn flare (veh)
Median type
Raised
Raised
Median storage veh)
1
1
Upstream signal (ft)
pX, platoon unblocked
vC, conflicting volume
1209
1584
340
1217
1557
403
680
805
vC1, stage 1 conf vol
778
778
779
779
vC2, stage 2 conf vol
430
805
438
778
vCu, unblocked vol
1209
1584
340
1217
1557
403
680
805
tC, single (s)
7.5
6.5
6.9
7.5
6.5
6.9
4.1
4.1
tC, 2 stage (s)
6.5
5.5
6.5
5.5
tF (s)
3.5
4.0
3.3
3.5
4.0
3.3
2.2
2.2
p0 queue free %
100
100
100
81
100
91
100
94
cM capacity (veh/h)
231
211
656
251
227
597
908
815
Direction, Lane #
EB 1
WB 1
NB 1
NB 2
NB 3
SB 1
SB 2
SB 3
Volume Total
0
102
0
501
304
49
454
227
Volume Left
0
48
0
0
0
49
0
0
Volume Right
0
54
0
0
53
0
0
0
cSH
1700
363
1700
1700
1700
815
1700
1700
Volume to Capacity
0.00
0.28
0.00
0.29
0.18
0.06
0.27
0.13
Queue Length 95th (ft)
0
28
0
0
0
5
0
0
Control Delay (s)
0.0
18.8
0.0
0.0
0.0
9.7
0.0
0.0
Lane LOS
A
C
A
Approach Delay (s)
0.0
18.8
0.0
0.7
Approach LOS
A
C
Intersection Summary
Average Delay 1.5
Intersection Capacity Utilization 39.5% ICU Level of Service A
Analysis Period (min) 15
2008 Pre -Development 1/10/2007 PM Peak Hour Synchro 6 Report
CTA Inc Page 1
HCM Unsignalized Intersection Capacity Analysis
9: Ramp 1 & Highway 93 1 /15/2007
t
Movement EBL EBR NBL NBT SBT SBR
Lane Configurations
tt
t
Sign Control
Stop
Free
Free
Grade
0%
0%
0%
Volume (veh/h)
0
16
0
692
610 17
Peak Hour Factor
0.92
0.92
0.92
0.92
0.92 0.92
Hourly flow rate (vph)
0
17
0
752
663 18
Pedestrians
Lane Width (ft)
Walking Speed (ft/s)
Percent Blockage
Right turn flare (veh)
Median type
Raised
Median storage veh)
0
Upstream signal (ft)
pX, platoon unblocked
vC, conflicting volume
1048
341
663
vC1, stage 1 conf vol
672
vC2, stage 2 conf vol
376
vCu, unblocked vol
1048
341
663
tC, single (s)
6.8
6.9
4.1
tC, 2 stage (s)
5.8
tF (s)
3.5
3.3
2.2
p0 queue free %
100
97
100
cM capacity (veh/h)
259
655
922
Direction, Lane #
EB 1
NB 1
NB 2
SB 1
SB 2
Volume Total
17
376
376
442
239
Volume Left
0
0
0
0
0
Volume Right
17
0
0
0
18
cSH
655
1700
1700
1700
1700
Volume to Capacity
0.03
0.22
0.22
0.26
0.14
Queue Length 95th (ft)
2
0
0
0
0
Control Delay (s)
10.6
0.0
0.0
0.0
0.0
Lane LOS
B
Approach Delay (s)
10.6
0.0
0.0
Approach LOS
B
Intersection Summary
Average Delay
0.1
Intersection Capacity Utilization
27.4%
ICU Level of Service A
Analysis Period (min)
15
2008 Pre -Development 1/10/2007 PM Peak Hour Synchro 6 Report
CTA Inc Page 2
HCM Unsignalized Intersection Capacity Analysis
10: Church Drive & Ramp 1 1/15/2007
Movement EBT EBR WBL WBT NBL NBR
Lane Configurations
'+
Sign Control
Free
Free
Stop
Grade
0%
0%
0%
Volume (veh/h)
19
16 0
19
17
0
Peak Hour Factor
0.92
0.92 0.92
0.92
0.92
0.92
Hourly flow rate (vph)
21
17 0
21
18
0
Pedestrians
Lane Width (ft)
Walking Speed (ft/s)
Percent Blockage
Right turn flare (veh)
Median type
None
Median storage veh)
Upstream signal (ft)
pX, platoon unblocked
vC, conflicting volume
38
50
29
vC1, stage 1 conf vol
vC2, stage 2 conf vol
vCu, unblocked vol
38
50
29
tC, single (s)
4.1
6.4
6.2
tC, 2 stage (s)
tF (s)
2.2
3.5
3.3
p0 queue free %
100
98
100
cM capacity (veh/h)
1572
959
1045
Direction, Lane #
EB 1
WB 1
NB 1
Volume Total
38
21
18
Volume Left
0
0
18
Volume Right
17
0
0
cSH
1700
1572
959
Volume to Capacity
0.02
0.00
0.02
Queue Length 95th (ft)
0
0
1
Control Delay (s)
0.0
0.0
8.8
Lane LOS
A
Approach Delay (s)
0.0
0.0
8.8
Approach LOS
A
Intersection Summary
Average Delay
2.1
Intersection Capacity Utilization
13.3% ICU Level of Service A
Analysis Period (min)
15
2008 Pre -Development 1/10/2007 PM Peak Hour Synchro 6 Report
CTA Inc Page 3
HCM Unsignalized Intersection Capacity Analysis
11: Ramp 2 & Highway 93 1/15/2007
i
Movement WBL WBR NBT NBR SBL SBT
Lane Configurations
r
0
tt
Sign Control
Stop
Free
Free
Grade
0%
0%
0%
Volume (veh/h)
0
19
673 19
0
627
Peak Hour Factor
0.92
0.92
0.92 0.92
0.92
0.92
Hourly flow rate (vph)
0
21
732 21
0
682
Pedestrians
Lane Width (ft)
Walking Speed (ft/s)
Percent Blockage
Right turn flare (veh)
Median type
Raised
Median storage veh)
0
Upstream signal (ft)
pX, platoon unblocked
vC, conflicting volume
1083
376
732
vC1, stage 1 conf vol
742
vC2, stage 2 conf vol
341
vCu, unblocked vol
1083
376
732
tC, single (s)
6.8
6.9
4.1
tC, 2 stage (s)
5.8
tF (s)
3.5
3.3
2.2
p0 queue free %
100
97
100
cM capacity (veh/h)
247
621
869
Direction, Lane #
WB 1
NB 1
NB 2
SB 1
SB 2
Volume Total
21
488
264
341
341
Volume Left
0
0
0
0
0
Volume Right
21
0
21
0
0
cSH
621
1700
1700
1700
1700
Volume to Capacity
0.03
0.29
0.16
0.20
0.20
Queue Length 95th (ft)
3
0
0
0
0
Control Delay (s)
11.0
0.0
0.0
0.0
0.0
Lane LOS
B
Approach Delay (s)
11.0
0.0
0.0
Approach LOS
B
Intersection Summary
Average Delay
0.2
Intersection Capacity Utilization
29.2%
ICU Level of Service A
Analysis Period (min)
15
2008 Pre -Development 1/10/2007 PM Peak Hour Synchro 6 Report
CTA Inc Page 4
HCM Unsignalized Intersection Capacity Analysis
12: Church Drive & Ramp 2 1/15/2007
Movement EBL EBT WBT WBR SBL SBR
Lane Configurations
+'
Sign Control
Free
Free
Stop
Grade
0%
0%
0%
Volume (veh/h)
19
0
0
0 0
19
Peak Hour Factor
0.92
0.92
0.92
0.92 0.92
0.92
Hourly flow rate (vph)
21
0
0
0 0
21
Pedestrians
Lane Width (ft)
Walking Speed (ft/s)
Percent Blockage
Right turn flare (veh)
Median type
None
Median storage veh)
Upstream signal (ft)
pX, platoon unblocked
vC, conflicting volume
0
41
0
vC1, stage 1 conf vol
vC2, stage 2 conf vol
vCu, unblocked vol
0
41
0
tC, single (s)
4.1
6.4
6.2
tC, 2 stage (s)
tF (s)
2.2
3.5
3.3
p0 queue free %
99
100
98
cM capacity (veh/h)
1623
958
1085
Direction, Lane #
EB 1
WB 1
SB 1
Volume Total
21
0
21
Volume Left
21
0
0
Volume Right
0
0
21
cSH
1623
1700
1085
Volume to Capacity
0.01
0.00
0.02
Queue Length 95th (ft)
1
0
1
Control Delay (s)
7.2
0.0
8.4
Lane LOS
A
A
Approach Delay (s)
7.2
0.0
8.4
Approach LOS
A
Intersection Summary
Average Delay
7.8
Intersection Capacity Utilization
13.3% ICU Level of Service A
Analysis Period (min)
15
2008 Pre -Development 1/10/2007 PM Peak Hour Synchro 6 Report
CTA Inc Page 5
SILVERBROOK ESTATES
KALISPELL, MONTANA
TRAFFIC IMPACT STUDY
APPENDIX C
Trip Generation & Internal Capture Worksheets
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SILVERBROOK ESTATES
KALISPELL, MONTANA
TRAFFIC IMPACT STUDY
APPENDIX D
Turn Lane Warrant Analyses
- �)m ?,�, k- 14c"
C b-k-5k Acce - Li � Ce J�• gc�eys w�
V= VA=
V� S/ vp(�
3 F'.si A�ces5 w�
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R-1 0z ZvI vek
7�v= �yq ups
Lc.,ie :5L"� be CGLtSi�2/PC �Y �l2 � 4 C�
13.3(8) INTERSECTION AT -GRADE December 2004
z N
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❑ V
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W H
Z
O
December 2004 INTERSECTION AT -GRADE 13.3 3
100
RIGHT -TURN LANE MAY
BEJUSTIFIED
80
60__T
RIGHT
—TURN LANE
MAY
NOT HE JUSTIFIED
40
20
0 100 200 300 400 500 600 700
TOTAL DHV, VEHICLES PER HOUR, IN ONE DIRECTION
Note: For highways with a design speed below 50 mph (80 km/h) with a DHV <300 and
where right turns > 40, an adjustment should be used. To read the vertical axis of the
chart, subtract 20 from the actual number of right turns.
Example
Given: Design Speed = 35 mph (60 km/h)
DHV = 250'vph
Right Turns - 100 vph
Problem: Determine if a right -turn lane is necessary.
Solution: To read the vertical axis, use 100 - 20 = 80 vph. The figure indicates that
a right -turn lane is not necessary, unless other factors (e.g_, high accident rate) indicate
a lane is needed.
GUIDELINES FOR RIGHT -TURN LANES AT UNSIGNALIZED INTERSECTIONS
ON 2-LANE HIGHWAYS
Figure 13.3A
kwvg34- Ct'u —D-✓t - ,,f Ae, /?ram,(%�-ti-- e 4,.1y5&
December 2004 INTERSECTION AT -GRADE 13.3(3)
l�iV =
23 vph
Z�
7HU=
lid
1
u
r
Dl�te
�
_a
�
w3 la 3
RIGHT TURN LANE MAY
BE JUSTIFIED
80
60
RIGHURN
T T LANE
MAY
NOT BE JUSTIFIED
40
20
vdw" �Q 9'yk4
Q ,00 zoo Sao aoo SDD 60D 700
` ( s�p TOTALDi1VVEHICLESPERHOUR,INONEDIRECTION
I�rcY+` 16f fv, �- f hiL ! O-Q Lv� •ra„9-ee� NcS!' 'i 7'i fr eC.
Note: For highways with a design speed below 50 mph (80 km/h) with a DHV <300 and
where right turns > 40, an adjustment should be used. To read the vertical axis of the
chart, subtract 20 from the actual number of right turns.
Example
Given: Design Speed = 35.mph (60 km/h)
DHV - 250 vph
Right Turns = 100 vph
Problem: Determine if a right -turn lane is necessary.
Solution: To read the vertical axis, use 100 - 20 = 80 vph. The figure indicates that
a right -turn lane is not necessary, unless other factors (e.g., high accident rate) indicate
a lane is needed.
GUIDELINES FOR RIGHT -TURN LANES AT UNSIGNALIZED INTERSECTIONS
ON 2-LANE HIGHWAYS
Figure 13.3A
k"'L'7)r've- qwv q3 f`��N? -rvrn ^PC5/ecL��4rc� G. I �Ic) 445i5
13.3(4) INTERSECTION AT -GRADE December 2004
12C
10C
90
U
Z
o O
S
W
g W
c- 60
O N
7 W
z J
� V
' W
7
F-
40
20'--
200
400
'�3 )is
RIGHT -TURN LANE MAY
RIGHT -TURN LANE MAY BE JUSTIFIED
NOT BE JUSTIFIED I I
�3
ATV Z,�7
Ps �� T1^^^n �eeeble� ram.) Lc.ne
�,I }�e ,�uSTt'kad a� �nas "ii+Me
600 B00 1000 1200 1400 1600
TOTAL DHV, VEHICLES PER HOUR, IN ONE DIRECTION
5�
ATV- f
7 iR V = 6`i5
17Q Jwih' i�ck Q�- �15 "�'iar'iC,
Note: Figure is only applicable on highways with a design speed of 50 mph (80 km/h)
or greater.
GUIDELINES FOR RIGHT -TURN LANES AT UNSIGNALIZED
INTERSECTIONS ON 4-LANE HIGHWAYS
Figure 13.313
SILVERBROOK ESTATES
KALISPELL, MONTANA
TRAFFIC IMPACT STUDY
APPENDIX E
Post -Development Synchro Worksheets
HCM Unsignalized Intersection Capacity Analysis
6: Tronstad & Highway 93 II1/15/2007
--1. i
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
0
Vii
t
Sign Control
Stop
Stop
Free
Free
Grade
0%
0%
0%
0%
Volume (veh/h)
31
5
35
40
2
44
18
549 34
57
721 14
Peak Hour Factor
0.92
0.92
0.92
0.92
0.92
0.92
0.92
0.92 0.92
0.92
0.92 0.92
Hourly flow rate (vph)
34
5
38
43
2
48
20
597 37
62
784 15
Pedestrians
Lane Width (ft)
Walking Speed (ft/s)
Percent Blockage
Right turn flare (veh)
Median type
Raised
Raised
Median storage veh)
1
1
Upstream signal (ft)
pX, platoon unblocked
vC, conflicting volume
1302
1588
399
1211
1577
317
799
634
vC1, stage 1 conf vol
915
915
654
654
vC2, stage 2 conf vol
386
673
557
923
vCu, unblocked vol
1302
1588
399
1211
1577
317
799
634
tC, single (s)
7.5
6.5
6.9
7.5
6.5
6.9
4.1
4.1
tC, 2 stage (s)
6.5
5.5
6.5
5.5
tF (s)
3.5
4.0
3.3
3.5
4.0
3.3
2.2
2.2
p0 queue free %
83
97
94
82
99
93
98
93
cM capacity (veh/h)
202
204
600
238
209
679
819
945
Direction, Lane #
EB 1
WB 1
NB 1
NB 2
NB 3
SB 1
SB 2
SB 3
Volume Total
77
93
20
398
236
62
522
276
Volume Left
34
43
20
0
0
62
0
0
Volume Right
38
48
0
0
37
0
0
15
cSH
300
355
819
1700
1700
945
1700
1700
Volume to Capacity
0.26
0.26
0.02
0.23
0.14
0.07
0.31
0.16
Queue Length 95th (ft)
25
26
2
0
0
5
0
0
Control Delay (s)
21.1
18.7
9.5
0.0
0.0
9.1
0.0
0.0
Lane LOS
C
C
A
A
Approach Delay (s)
21.1
18.7
0.3
0.7
Approach LOS
C
C
Intersection Summary
Average Delay 2.4
Intersection Capacity Utilization 40.3% ICU Level of Service A
Analysis Period (min) 15
Post -Development 1/10/2007 AM Peak Hour Synchro 6 Report
CTA Inc Page 1
HCM Unsignalized Intersection Capacity Analysis
9: Ramp 1 & Highway 93 1 /15/2007
t
Movement EBL EBR NBL NBT SBT SBR
Lane Configurations
tt
t
Sign Control
Stop
Free
Free
Grade
0%
0%
0%
Volume (veh/h)
0
176
0
591
579 71
Peak Hour Factor
0.92
0.92
0.92
0.92
0.92 0.92
Hourly flow rate (vph)
0
191
0
642
629 77
Pedestrians
Lane Width (ft)
Walking Speed (ft/s)
Percent Blockage
Right turn flare (veh)
Median type
Raised
Median storage veh)
0
Upstream signal (ft)
pX, platoon unblocked
vC, conflicting volume
989
353
629
vC1, stage 1 conf vol
668
vC2, stage 2 conf vol
321
vCu, unblocked vol
989
353
629
tC, single (s)
6.8
6.9
4.1
tC, 2 stage (s)
5.8
tF (s)
3.5
3.3
2.2
p0 queue free %
100
70
100
cM capacity (veh/h)
270
643
949
Direction, Lane #
EB 1
NB 1
NB 2
SB 1
SB 2
Volume Total
191
321
321
420
287
Volume Left
0
0
0
0
0
Volume Right
191
0
0
0
77
cSH
643
1700
1700
1700
1700
Volume to Capacity
0.30
0.19
0.19
0.25
0.17
Queue Length 95th (ft)
31
0
0
0
0
Control Delay (s)
13.0
0.0
0.0
0.0
0.0
Lane LOS
B
Approach Delay (s)
13.0
0.0
0.0
Approach LOS
B
Intersection Summary
Average Delay
1.6
Intersection Capacity Utilization
35.8%
ICU Level of Service A
Analysis Period (min)
15
Post -Development 1/10/2007 AM Peak Hour Synchro 6 Report
CTA Inc Page 2
HCM Unsignalized Intersection Capacity Analysis
10: Church Drive & Ramp 1 1/15/2007
Movement EBT EBR WBL WBT NBL NBR
Lane Configurations
+
r
Sign Control
Free
Free
Stop
Grade
0%
0%
0%
Volume (veh/h)
123
176
0
94
71
0
Peak Hour Factor
0.92
0.92
0.92
0.92
0.92
0.92
Hourly flow rate (vph)
134
191
0
102
77
0
Pedestrians
Lane Width (ft)
Walking Speed (ft/s)
Percent Blockage
Right turn flare (veh)
Median type
None
Median storage veh)
Upstream signal (ft)
pX, platoon unblocked
vC, conflicting volume
325
236
134
vC1, stage 1 conf vol
vC2, stage 2 conf vol
vCu, unblocked vol
325
236
134
tC, single (s)
4.1
6.4
6.2
tC, 2 stage (s)
tF (s)
2.2
3.5
3.3
p0 queue free %
100
90
100
cM capacity (veh/h)
1235
752
915
Direction, Lane #
EB 1
EB 2
WB 1
NB 1
Volume Total
134
191
102
77
Volume Left
0
0
0
77
Volume Right
0
191
0
0
cSH
1700
1700
1235
752
Volume to Capacity
0.08
0.11
0.00
0.10
Queue Length 95th (ft)
0
0
0
9
Control Delay (s)
0.0
0.0
0.0
10.3
Lane LOS
B
Approach Delay (s)
0.0
0.0
10.3
Approach LOS
B
Intersection Summary
Average Delay
1.6
Intersection Capacity Utilization
22.5%
ICU Level of Service A
Analysis Period (min)
15
Post -Development 1/10/2007 AM Peak Hour Synchro 6 Report
CTA Inc Page 3
HCM Unsignalized Intersection Capacity Analysis
11: Ramp 2 & Highway 93 1/15/2007
i
Movement WBL WBR NBT NBR SBL SBT
Lane Configurations
r
0
tt
Sign Control
Stop
Free
Free
Grade
0%
0%
0%
Volume (veh/h)
0
123
497
94 0
650
Peak Hour Factor
0.92
0.92
0.92
0.92 0.92
0.92
Hourly flow rate (vph)
0
134
540
102 0
707
Pedestrians
Lane Width (ft)
Walking Speed (ft/s)
Percent Blockage
Right turn flare (veh)
Median type
Raised
Median storage veh)
0
Upstream signal (ft)
pX, platoon unblocked
vC, conflicting volume
945
321
540
vC1, stage 1 conf vol
591
vC2, stage 2 conf vol
353
vCu, unblocked vol
945
321
540
tC, single (s)
6.8
6.9
4.1
tC, 2 stage (s)
5.8
tF (s)
3.5
3.3
2.2
p0 queue free %
100
80
100
cM capacity (veh/h)
285
675
1024
Direction, Lane #
WB 1
NB 1
NB 2
SB 1
SB 2
Volume Total
134
360
282
353
353
Volume Left
0
0
0
0
0
Volume Right
134
0
102
0
0
cSH
675
1700
1700
1700
1700
Volume to Capacity
0.20
0.21
0.17
0.21
0.21
Queue Length 95th (ft)
18
0
0
0
0
Control Delay (s)
11.7
0.0
0.0
0.0
0.0
Lane LOS
B
Approach Delay (s)
11.7
0.0
0.0
Approach LOS
B
Intersection Summary
Average Delay
1.1
Intersection Capacity Utilization
31.0%
ICU Level of Service A
Analysis Period (min)
15
Post -Development 1/10/2007 AM Peak Hour Synchro 6 Report
CTA Inc Page 4
HCM Unsignalized Intersection Capacity Analysis
12: Church Drive & Ramp 2 1/15/2007
Movement EBL EBT WBT WBR SBL SBR
Lane Configurations
+'
Sign Control
Free
Free
Stop
Grade
0%
0%
0%
Volume (veh/h)
123
0
0
0 0
94
Peak Hour Factor
0.92
0.92
0.92
0.92 0.92
0.92
Hourly flow rate (vph)
134
0
0
0 0
102
Pedestrians
Lane Width (ft)
Walking Speed (ft/s)
Percent Blockage
Right turn flare (veh)
Median type
None
Median storage veh)
Upstream signal (ft)
pX, platoon unblocked
vC, conflicting volume
0
267
0
vC1, stage 1 conf vol
vC2, stage 2 conf vol
vCu, unblocked vol
0
267
0
tC, single (s)
4.1
6.4
6.2
tC, 2 stage (s)
tF (s)
2.2
3.5
3.3
p0 queue free %
92
100
91
cM capacity (veh/h)
1623
662
1085
Direction, Lane #
EB 1
WB 1
SB 1
Volume Total
134
0
102
Volume Left
134
0
0
Volume Right
0
0
102
cSH
1623
1700
1085
Volume to Capacity
0.08
0.00
0.09
Queue Length 95th (ft)
7
0
8
Control Delay (s)
7.4
0.0
8.7
Lane LOS
A
A
Approach Delay (s)
7.4
0.0
8.7
Approach LOS
A
Intersection Summary
Average Delay
8.0
Intersection Capacity Utilization
19.3% ICU Level of Service A
Analysis Period (min)
15
Post -Development 1/10/2007 AM Peak Hour Synchro 6 Report
CTA Inc Page 5
HCM Unsignalized Intersection Capacity Analysis
13: Church Drive & East Access 1/15/2007
Movement EBT EBR WBL WBT NBL NBR
Lane Configurations
T+
Sign Control
Free
Free
Stop
Grade
0%
0%
0%
Volume (veh/h)
128
3
86
79
5
171
Peak Hour Factor
0.92
0.92
0.92
0.92
0.92
0.92
Hourly flow rate (vph)
139
3
93
86
5
186
Pedestrians
Lane Width (ft)
Walking Speed (ft/s)
Percent Blockage
Right turn flare (veh)
Median type
None
Median storage veh)
Upstream signal (ft)
pX, platoon unblocked
vC, conflicting volume
142
414
141
vC1, stage 1 conf vol
vC2, stage 2 conf vol
vCu, unblocked vol
142
414
141
tC, single (s)
4.1
6.4
6.2
tC, 2 stage (s)
tF (s)
2.2
3.5
3.3
p0 queue free %
94
99
80
cM capacity (veh/h)
1440
556
907
Direction, Lane #
EB 1
WB 1
WB 2
NB 1
Volume Total
142
93
86
191
Volume Left
0
93
0
5
Volume Right
3
0
0
186
cSH
1700
1440
1700
891
Volume to Capacity
0.08
0.06
0.05
0.21
Queue Length 95th (ft)
0
5
0
20
Control Delay (s)
0.0
7.7
0.0
10.1
Lane LOS
A
B
Approach Delay (s)
0.0
4.0
10.1
Approach LOS
B
Intersection Summary
Average Delay 5.2
Intersection Capacity Utilization 32.5% ICU Level of Service A
Analysis Period (min) 15
Post -Development 1/10/2007 AM Peak Hour Synchro 6 Report
CTA Inc Page 6
HCM Unsignalized Intersection Capacity Analysis
15: Church Drive & Center Access 1/15/2007
Movement EBT EBR WBL WBT NBL NBR
Lane Configurations
'+
Sign Control
Free
Free
Stop
Grade
0%
0%
0%
Volume (veh/h)
81
1
26
58
3
50
Peak Hour Factor
0.92
0.92
0.92
0.92
0.92
0.92
Hourly flow rate (vph)
88
1
28
63
3
54
Pedestrians
Lane Width (ft)
Walking Speed (ft/s)
Percent Blockage
Right turn flare (veh)
Median type
None
Median storage veh)
Upstream signal (ft)
pX, platoon unblocked
vC, conflicting volume
89
208
89
vC1, stage 1 conf vol
vC2, stage 2 conf vol
vCu, unblocked vol
89
208
89
tC, single (s)
4.1
6.4
6.2
tC, 2 stage (s)
tF (s)
2.2
3.5
3.3
p0 queue free %
98
100
94
cM capacity (veh/h)
1506
766
970
Direction, Lane #
EB 1
WB 1
NB 1
Volume Total
89
91
58
Volume Left
0
28
3
Volume Right
1
0
54
cSH
1700
1506
955
Volume to Capacity
0.05
0.02
0.06
Queue Length 95th (ft)
0
1
5
Control Delay (s)
0.0
2.4
9.0
Lane LOS
A
A
Approach Delay (s)
0.0
2.4
9.0
Approach LOS
A
Intersection Summary
Average Delay 3.1
Intersection Capacity Utilization 21.2% ICU Level of Service A
Analysis Period (min) 15
Post -Development 1/10/2007 AM Peak Hour Synchro 6 Report
CTA Inc Page 7
HCM Unsignalized Intersection Capacity Analysis
17: Church Drive & West Access 1/15/2007
Movement EBT EBR WBL WBT NBL NBR
Lane Configurations
'+
Sign Control
Free
Free
Stop
Grade
0%
0%
0%
Volume (veh/h)
32
1
35
26
3
50
Peak Hour Factor
0.92
0.92
0.92
0.92
0.92
0.92
Hourly flow rate (vph)
35
1
38
28
3
54
Pedestrians
Lane Width (ft)
Walking Speed (ft/s)
Percent Blockage
Right turn flare (veh)
Median type
None
Median storage veh)
Upstream signal (ft)
pX, platoon unblocked
vC, conflicting volume
36
140
35
vC1, stage 1 conf vol
vC2, stage 2 conf vol
vCu, unblocked vol
36
140
35
tC, single (s)
4.1
6.4
6.2
tC, 2 stage (s)
tF (s)
2.2
3.5
3.3
p0 queue free %
98
100
95
cM capacity (veh/h)
1575
833
1037
Direction, Lane #
EB 1
WB 1
NB 1
Volume Total
36
66
58
Volume Left
0
38
3
Volume Right
1
0
54
cSH
1700
1575
1023
Volume to Capacity
0.02
0.02
0.06
Queue Length 95th (ft)
0
2
4
Control Delay (s)
0.0
4.3
8.7
Lane LOS
A
A
Approach Delay (s)
0.0
4.3
8.7
Approach LOS
A
Intersection Summary
Average Delay 4.9
Intersection Capacity Utilization 20.0% ICU Level of Service A
Analysis Period (min) 15
Post -Development 1/10/2007 AM Peak Hour Synchro 6 Report
CTA Inc Page 8
HCM Unsignalized Intersection Capacity Analysis
6: Tronstad & Highway 93 II1/15/2007
--1. i
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
+'
r
4
r
0
Vii
tT+
Sign Control
Stop
Stop
Free
Free
Grade
0%
0%
0%
0%
Volume (veh/h)
31
5
35
40
2
44
18
549 34
57
721 14
Peak Hour Factor
0.92
0.92
0.92
0.92
0.92
0.92
0.92
0.92 0.92
0.92
0.92 0.92
Hourly flow rate (vph)
34
5
38
43
2
48
20
597 37
62
784 15
Pedestrians
Lane Width (ft)
Walking Speed (ft/s)
Percent Blockage
Right turn flare (veh)
2
2
Median type
Raised
Raised
Median storage veh)
1
1
Upstream signal (ft)
pX, platoon unblocked
vC, conflicting volume
1254
1588
399
1192
1577
317
799
634
vC1, stage 1 conf vol
915
915
654
654
vC2, stage 2 conf vol
339
673
538
923
vCu, unblocked vol
1254
1588
399
1192
1577
317
799
634
tC, single (s)
7.5
6.5
6.9
7.5
6.5
6.9
4.1
4.1
tC, 2 stage (s)
6.5
5.5
6.5
5.5
tF (s)
3.5
4.0
3.3
3.5
4.0
3.3
2.2
2.2
p0 queue free %
84
97
94
82
99
93
98
93
cM capacity (veh/h)
208
204
600
242
209
679
819
945
Direction, Lane #
EB 1
WB 1
NB 1
NB 2
NB 3
SB 1
SB 2
SB 3
Volume Total
77
93
20
398
236
62
522
276
Volume Left
34
43
20
0
0
62
0
0
Volume Right
38
48
0
0
37
0
0
15
cSH
409
493
819
1700
1700
945
1700
1700
Volume to Capacity
0.19
0.19
0.02
0.23
0.14
0.07
0.31
0.16
Queue Length 95th (ft)
17
17
2
0
0
5
0
0
Control Delay (s)
19.0
16.9
9.5
0.0
0.0
9.1
0.0
0.0
Lane LOS
C
C
A
A
Approach Delay (s)
19.0
16.9
0.3
0.7
Approach LOS
C
C
Intersection Summary
Average Delay 2.3
Intersection Capacity Utilization 42.7% ICU Level of Service A
Analysis Period (min) 15
Post -Development w/ Mitigation 1/10/2007 AM Peak Hour Synchro 6 Report
CTA Inc Page 1
HCM Unsignalized Intersection Capacity Analysis
6: Tronstad & Highway 93 II1/15/2007
--1. i
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
0
Vii
t
Sign Control
Stop
Stop
Free
Free
Grade
0%
0%
0%
0%
Volume (veh/h)
34
6
41
44
8
80
55
910
49 67
789 44
Peak Hour Factor
0.92
0.92
0.92
0.92
0.92
0.92
0.92
0.92
0.92 0.92
0.92 0.92
Hourly flow rate (vph)
37
7
45
48
9
87
60
989
53 73
858 48
Pedestrians
Lane Width (ft)
Walking Speed (ft/s)
Percent Blockage
Right turn flare (veh)
Median type
Raised
Raised
Median storage veh)
1
1
Upstream signal (ft)
pX, platoon unblocked
vC, conflicting volume
1733
2189
453
1758
2186
521
905
1042
vC1, stage 1 conf vol
1027
1027
1135
1135
vC2, stage 2 conf vol
705
1162
622
1051
vCu, unblocked vol
1733
2189
453
1758
2186
521
905
1042
tC, single (s)
7.5
6.5
6.9
7.5
6.5
6.9
4.1
4.1
tC, 2 stage (s)
6.5
5.5
6.5
5.5
tF (s)
3.5
4.0
3.3
3.5
4.0
3.3
2.2
2.2
p0 queue free %
69
94
92
62
93
83
92
89
cM capacity (veh/h)
117
113
554
126
121
500
747
663
Direction, Lane #
EB 1
WB 1
NB 1
NB 2
NB 3
SB 1
SB 2
SB 3
Volume Total
88
143
60
659
383
73
572
334
Volume Left
37
48
60
0
0
73
0
0
Volume Right
45
87
0
0
53
0
0
48
cSH
194
229
747
1700
1700
663
1700
1700
Volume to Capacity
0.45
0.63
0.08
0.39
0.23
0.11
0.34
0.20
Queue Length 95th (ft)
53
93
7
0
0
9
0
0
Control Delay (s)
38.0
43.9
10.2
0.0
0.0
11.1
0.0
0.0
Lane LOS
E
E
B
B
Approach Delay (s)
38.0
43.9
0.6
0.8
Approach LOS
E
E
Intersection Summary
Average Delay 4.8
Intersection Capacity Utilization 49.7% ICU Level of Service A
Analysis Period (min) 15
Post -Development 1/10/2007 PM Peak Hour Synchro 6 Report
CTA Inc Page 1
HCM Unsignalized Intersection Capacity Analysis
9: SB Ramp & Highway 93 1/15/2007
t
Movement EBL EBR NBL NBT SBT SBR
Lane Configurations
tt
t
Sign Control
Stop
Free
Free
Grade
0%
0%
0%
Volume (veh/h)
0
201
0
974
654 191
Peak Hour Factor
0.92
0.92
0.92
0.92
0.92 0.92
Hourly flow rate (vph)
0
218
0
1059
711 208
Pedestrians
Lane Width (ft)
Walking Speed (ft/s)
Percent Blockage
Right turn flare (veh)
Median type
Raised
Median storage veh)
0
Upstream signal (ft)
pX, platoon unblocked
vC, conflicting volume
1344
459
711
vC1, stage 1 conf vol
815
vC2, stage 2 conf vol
529
vCu, unblocked vol
1344
459
711
tC, single (s)
6.8
6.9
4.1
tC, 2 stage (s)
5.8
tF (s)
3.5
3.3
2.2
p0 queue free %
100
60
100
cM capacity (veh/h)
204
549
884
Direction, Lane #
EB 1
NB 1
NB 2
SB 1
SB 2
Volume Total
218
529
529
474
445
Volume Left
0
0
0
0
0
Volume Right
218
0
0
0
208
cSH
549
1700
1700
1700
1700
Volume to Capacity
0.40
0.31
0.31
0.28
0.26
Queue Length 95th (ft)
47
0
0
0
0
Control Delay (s)
15.8
0.0
0.0
0.0
0.0
Lane LOS
C
Approach Delay (s)
15.8
0.0
0.0
Approach LOS
C
Intersection Summary
Average Delay
1.6
Intersection Capacity Utilization
43.3%
ICU Level of Service A
Analysis Period (min)
15
Post -Development 1/10/2007 PM Peak Hour Synchro 6 Report
CTA Inc Page 2
HCM Unsignalized Intersection Capacity Analysis
10: Church Drive & SIB Ramp 1/15/2007
Movement EBT EBR WBL WBT NBL NBR
Lane Configurations
+
r
Sign Control
Free
Free
Stop
Grade
0%
0%
0%
Volume (veh/h)
148
201
0
267
191
0
Peak Hour Factor
0.92
0.92
0.92
0.92
0.92
0.92
Hourly flow rate (vph)
161
218
0
290
208
0
Pedestrians
Lane Width (ft)
Walking Speed (ft/s)
Percent Blockage
Right turn flare (veh)
Median type
None
Median storage veh)
Upstream signal (ft)
pX, platoon unblocked
vC, conflicting volume
379
451
161
vC1, stage 1 conf vol
vC2, stage 2 conf vol
vCu, unblocked vol
379
451
161
tC, single (s)
4.1
6.4
6.2
tC, 2 stage (s)
tF (s)
2.2
3.5
3.3
p0 queue free %
100
63
100
cM capacity (veh/h)
1179
566
884
Direction, Lane #
EB 1
EB 2
WB 1
NB 1
Volume Total
161
218
290
208
Volume Left
0
0
0
208
Volume Right
0
218
0
0
cSH
1700
1700
1179
566
Volume to Capacity
0.09
0.13
0.00
0.37
Queue Length 95th (ft)
0
0
0
42
Control Delay (s)
0.0
0.0
0.0
15.0
Lane LOS
B
Approach Delay (s)
0.0
0.0
15.0
Approach LOS
B
Intersection Summary
Average Delay
3.5
Intersection Capacity Utilization
33.2%
ICU Level of Service A
Analysis Period (min)
15
Post -Development 1/10/2007 PM Peak Hour Synchro 6 Report
CTA Inc Page 3
HCM Unsignalized Intersection Capacity Analysis
11: NB Ramp & Highway 93 1/15/2007
i
Movement WBL WBR NBT NBR SBL SBT
Lane Configurations
r
0
tt
Sign Control
Stop
Free
Free
Grade
0%
0%
0%
Volume (veh/h)
0
148
707 267
0
845
Peak Hour Factor
0.92
0.92
0.92 0.92
0.92
0.92
Hourly flow rate (vph)
0
161
768 290
0
918
Pedestrians
Lane Width (ft)
Walking Speed (ft/s)
Percent Blockage
Right turn flare (veh)
Median type
Raised
Median storage veh)
0
Upstream signal (ft)
pX, platoon unblocked
vC, conflicting volume
1373
529
768
vC1, stage 1 conf vol
914
vC2, stage 2 conf vol
459
vCu, unblocked vol
1373
529
768
tC, single (s)
6.8
6.9
4.1
tC, 2 stage (s)
5.8
tF (s)
3.5
3.3
2.2
p0 queue free %
100
67
100
cM capacity (veh/h)
193
494
841
Direction, Lane #
WB 1
NB 1
NB 2
SB 1
SB 2
Volume Total
161
512
546
459
459
Volume Left
0
0
0
0
0
Volume Right
161
0
290
0
0
cSH
494
1700
1700
1700
1700
Volume to Capacity
0.33
0.30
0.32
0.27
0.27
Queue Length 95th (ft)
35
0
0
0
0
Control Delay (s)
15.8
0.0
0.0
0.0
0.0
Lane LOS
C
Approach Delay (s)
15.8
0.0
0.0
Approach LOS
C
Intersection Summary
Average Delay
1.2
Intersection Capacity Utilization
43.9%
ICU Level of Service A
Analysis Period (min)
15
Post -Development 1/10/2007 PM Peak Hour Synchro 6 Report
CTA Inc Page 4
HCM Unsignalized Intersection Capacity Analysis
12: Church Drive & NB Ramp 1/15/2007
Movement EBL EBT WBT WBR SBL SBR
Lane Configurations
+'
Sign Control
Free
Free
Stop
Grade
0%
0%
0%
Volume (veh/h)
148
0
0
0 0
267
Peak Hour Factor
0.92
0.92
0.92
0.92 0.92
0.92
Hourly flow rate (vph)
161
0
0
0 0
290
Pedestrians
Lane Width (ft)
Walking Speed (ft/s)
Percent Blockage
Right turn flare (veh)
Median type
None
Median storage veh)
Upstream signal (ft)
pX, platoon unblocked
vC, conflicting volume
0
322
0
vC1, stage 1 conf vol
vC2, stage 2 conf vol
vCu, unblocked vol
0
322
0
tC, single (s)
4.1
6.4
6.2
tC, 2 stage (s)
tF (s)
2.2
3.5
3.3
p0 queue free %
90
100
73
cM capacity (veh/h)
1623
605
1085
Direction, Lane #
EB 1
WB 1
SB 1
Volume Total
161
0
290
Volume Left
161
0
0
Volume Right
0
0
290
cSH
1623
1700
1085
Volume to Capacity
0.10
0.00
0.27
Queue Length 95th (ft)
8
0
27
Control Delay (s)
7.5
0.0
9.5
Lane LOS
A
A
Approach Delay (s)
7.5
0.0
9.5
Approach LOS
A
Intersection Summary
Average Delay
8.8
Intersection Capacity Utilization
31.4% ICU Level of Service A
Analysis Period (min)
15
Post -Development 1/10/2007 PM Peak Hour Synchro 6 Report
CTA Inc Page 5
HCM Unsignalized Intersection Capacity Analysis
13: Church Drive & East Access 1/15/2007
Movement EBT EBR WBL WBT NBL NBR
Lane Configurations
T+
Sign Control
Free
Free
Stop
Grade
0%
0%
0%
Volume (veh/h)
151
8
266
192
6
198
Peak Hour Factor
0.92
0.92
0.92
0.92
0.92
0.92
Hourly flow rate (vph)
164
9
289
209
7
215
Pedestrians
Lane Width (ft)
Walking Speed (ft/s)
Percent Blockage
Right turn flare (veh)
Median type
None
Median storage veh)
Upstream signal (ft)
pX, platoon unblocked
vC, conflicting volume
173
955
168
vC1, stage 1 conf vol
vC2, stage 2 conf vol
vCu, unblocked vol
173
955
168
tC, single (s)
4.1
6.4
6.2
tC, 2 stage (s)
tF (s)
2.2
3.5
3.3
p0 queue free %
79
97
75
cM capacity (veh/h)
1404
227
876
Direction, Lane #
EB 1
WB 1
WB 2
NB 1
Volume Total
173
289
209
222
Volume Left
0
289
0
7
Volume Right
9
0
0
215
cSH
1700
1404
1700
808
Volume to Capacity
0.10
0.21
0.12
0.27
Queue Length 95th (ft)
0
19
0
28
Control Delay (s)
0.0
8.2
0.0
11.1
Lane LOS
A
B
Approach Delay (s)
0.0
4.8
11.1
Approach LOS
B
Intersection Summary
Average Delay 5.4
Intersection Capacity Utilization 45.8% ICU Level of Service A
Analysis Period (min) 15
Post -Development 1/10/2007 PM Peak Hour Synchro 6 Report
CTA Inc Page 6
HCM Unsignalized Intersection Capacity Analysis
15: Church Drive & Center Access 1/15/2007
Movement EBT EBR WBL WBT NBL NBR
Lane Configurations
'+
Sign Control
Free
Free
Stop
Grade
0%
0%
0%
Volume (veh/h)
101
4
78
120
3
58
Peak Hour Factor
0.92
0.92
0.92
0.92
0.92
0.92
Hourly flow rate (vph)
110
4
85
130
3
63
Pedestrians
Lane Width (ft)
Walking Speed (ft/s)
Percent Blockage
Right turn flare (veh)
Median type
None
Median storage veh)
Upstream signal (ft)
pX, platoon unblocked
vC, conflicting volume
114
412
112
vC1, stage 1 conf vol
vC2, stage 2 conf vol
vCu, unblocked vol
114
412
112
tC, single (s)
4.1
6.4
6.2
tC, 2 stage (s)
tF (s)
2.2
3.5
3.3
p0 queue free %
94
99
93
cM capacity (veh/h)
1475
562
941
Direction, Lane #
EB 1
WB 1
NB 1
Volume Total
114
215
66
Volume Left
0
85
3
Volume Right
4
0
63
cSH
1700
1475
911
Volume to Capacity
0.07
0.06
0.07
Queue Length 95th (ft)
0
5
6
Control Delay (s)
0.0
3.3
9.3
Lane LOS
A
A
Approach Delay (s)
0.0
3.3
9.3
Approach LOS
A
Intersection Summary
Average Delay 3.3
Intersection Capacity Utilization 27.7% ICU Level of Service A
Analysis Period (min) 15
Post -Development 1/10/2007 PM Peak Hour Synchro 6 Report
CTA Inc Page 7
HCM Unsignalized Intersection Capacity Analysis
17: Church Drive & West Access 1/15/2007
Movement EBT EBR WBL WBT NBL NBR
Lane Configurations
'+
Sign Control
Free
Free
Stop
Grade
0%
0%
0%
Volume (veh/h)
47
4
78
45
3
58
Peak Hour Factor
0.92
0.92
0.92
0.92
0.92
0.92
Hourly flow rate (vph)
51
4
85
49
3
63
Pedestrians
Lane Width (ft)
Walking Speed (ft/s)
Percent Blockage
Right turn flare (veh)
Median type
None
Median storage veh)
Upstream signal (ft)
pX, platoon unblocked
vC, conflicting volume
55
272
53
vC1, stage 1 conf vol
vC2, stage 2 conf vol
vCu, unblocked vol
55
272
53
tC, single (s)
4.1
6.4
6.2
tC, 2 stage (s)
tF (s)
2.2
3.5
3.3
p0 queue free %
95
100
94
cM capacity (veh/h)
1549
678
1014
Direction, Lane #
EB 1
WB 1
NB 1
Volume Total
55
134
66
Volume Left
0
85
3
Volume Right
4
0
63
cSH
1700
1549
990
Volume to Capacity
0.03
0.05
0.07
Queue Length 95th (ft)
0
4
5
Control Delay (s)
0.0
4.9
8.9
Lane LOS
A
A
Approach Delay (s)
0.0
4.9
8.9
Approach LOS
A
Intersection Summary
Average Delay 4.9
Intersection Capacity Utilization 23.8% ICU Level of Service A
Analysis Period (min) 15
Post -Development 1/10/2007 PM Peak Hour Synchro 6 Report
CTA Inc Page 8
HCM Unsignalized Intersection Capacity Analysis
6: Tronstad & Highway 93 II1/15/2007
--1. i
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
+'
r
4
r
0
Vii
tT+
Sign Control
Stop
Stop
Free
Free
Grade
0%
0%
0%
0%
Volume (veh/h)
34
6
41
44
8
80
55
910
49 67
789 44
Peak Hour Factor
0.92
0.92
0.92
0.92
0.92
0.92
0.92
0.92
0.92 0.92
0.92 0.92
Hourly flow rate (vph)
37
7
45
48
9
87
60
989
53 73
858 48
Pedestrians
Lane Width (ft)
Walking Speed (ft/s)
Percent Blockage
Right turn flare (veh)
2
2
Median type
Raised
Raised
Median storage veh)
1
1
Upstream signal (ft)
pX, platoon unblocked
vC, conflicting volume
1646
2189
453
1735
2186
521
905
1042
vC1, stage 1 conf vol
1027
1027
1135
1135
vC2, stage 2 conf vol
618
1162
600
1051
vCu, unblocked vol
1646
2189
453
1735
2186
521
905
1042
tC, single (s)
7.5
6.5
6.9
7.5
6.5
6.9
4.1
4.1
tC, 2 stage (s)
6.5
5.5
6.5
5.5
tF (s)
3.5
4.0
3.3
3.5
4.0
3.3
2.2
2.2
p0 queue free %
71
94
92
63
93
83
92
89
cM capacity (veh/h)
128
113
554
128
121
500
747
663
Direction, Lane #
EB 1
WB 1
NB 1
NB 2
NB 3
SB 1
SB 2
SB 3
Volume Total
88
143
60
659
383
73
572
334
Volume Left
37
48
60
0
0
73
0
0
Volume Right
45
87
0
0
53
0
0
48
cSH
255
322
747
1700
1700
663
1700
1700
Volume to Capacity
0.35
0.45
0.08
0.39
0.23
0.11
0.34
0.20
Queue Length 95th (ft)
37
55
7
0
0
9
0
0
Control Delay (s)
29.8
29.8
10.2
0.0
0.0
11.1
0.0
0.0
Lane LOS
D
D
B
B
Approach Delay (s)
29.8
29.8
0.6
0.8
Approach LOS
D
D
Intersection Summary
Average Delay 3.6
Intersection Capacity Utilization 50.0% ICU Level of Service A
Analysis Period (min) 15
Post -Development w/ Mitigation 1/10/2007 PM Peak Hour Synchro 6 Report
CTA Inc Page 1