HomeMy WebLinkAboutBURNS RANCH AT QUAIL RIDGE RF CLUSTER PLAN AND RF SUBDIVISION REVIEW - 23-90B - SUBMITTAL DOCUMENTS - ROUND 1 - TRAFFIC STUDYen
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MEMORANDUM
To: Rex Burns
Eldon Ward, Cityscape
Rick Ensdorff, Fort Collins
Transportation
Fort Collins Planning Staff
From: Matt Delich
Date: October 24, 1990
Director of
Subject: Traffic analysis of Quail Ridge
This memorandum addresses the traffic impacts of Quail
Ridge, Phases 1 and 2. Quail Ridge is a residential
development located west of Overland Trail and south of
Skimmerhorn Street. Quail Hollow, an adjacent residential
development located east of Overland Trail and south of Drake
Road, has a total of 378 single family lots either planned,
under construction, vacant, or occupied. There have been
traffic studies, similar to this one, done for various filings
of Quail Hollow. Data from those studies were used in this
traffic study.
With the last filing of the Quail Hollow development,
Overland Trail will be paved approximately 2700 feet south of
Drake Road.. This work is currently underway. Quail Ridge
will access at the Overland Trail/Skimmerhorn intersection
(1000 feet south of Drake). The paved width of Overland
Trail south of Drake should be 36 feet at the level of
development considered in this traffic study.
The City of Fort Collins conducted a traffic count on
Drake Road just east of Yorkshire Street in September 1989.
The daily, two-way traffic was 9.529. The morning peak hour
traffic was 633 and the evening peak hour traffic was 936.
Peak hour traffic counts were conducted in October 1990 to
verify the use of previously prepared traffic studies. These
traffic counts are shown in Figure 1. From these 1990 traffic
counts, it is concluded that use of the traffic projections
from previous traffic studies gives a reasonable expectation
of peak hour traffic at full development of Quail Ridge.
The trip generation from Quail Ridge is shown in Table
1. The reference for this analysis is Trip Generation, 4th
Edition, ITE. The trip distribution used for the following
traffic assignment was 85 percent to the east (along Drake
Road) and 15 percent to the north (along Overland Trail).
Overland Trail will not extend south of the Quail Hollow and
Quail Ridge developments for a number of, years. It is assumed
that there would be little or no traffic between Quail Ridge
and Quail Hollow or other residential subdivisions in the
area.
Figure 2 shows the results of the trip assignments at the
key intersections in the morning and afternoon peak hours.
The existing traffic on Drake Road.was factored by 3 percent
per year to obtain the 1.992 background traffic. The Overland
Trail/Skimmerhorn intersection should be stop sign controlled
with Overland Trail receiving the right-of-way. The Overland
Trail/Drake intersection should be stop sign controlled with
Overland Trail receiving the through movement. This is the
safest way to control this intersection. Since there is a
heavy east to north leg and north to east leg movement at this
intersection, it is recommended that the westbound to
northbound traffic be channelled out and controlled with a
yield sign. Another alternative would be to channel the
right -turning vehicles away from the stop sign and build a
right -turn acceleration lane on northbound Overland Trail that
would allow the heaviest movement an uninterrupted movement.
Since the northbound traffic from the south leg of Overland
Trail will be very small, either of these control options
would operate safely and efficiently.
Table 2 shows the operation at the key intersections.
All intersections will operate acceptably. Acceptable
operation is considered to be level of service D or better.
Calculation forms are provided in the Appendix.
At full development and occupancy, Quail Ridge is
expected to add 360 daily trips to Overland Trail. In the
peak hours, the added trips are expected to be 28 in the
morning and 36 in the afternoon. While the percentage of
trips added to Overland Trail when it is completed is high due
to the low background volumes, the actual increase is very
low. The traffic volumes generated by Quail Ridge are a very
small percentage of the capacity of Overland Trail when it is
completed.
It is concluded that the impact of the Quail Ridge
development will be very small and can be handled by the
existing street system when completed. The paved width of
Overland Trail should be 36 feet at this level of development.
The cross section necessary to accommodate the expected
traffic on Overland Trail should be one lane in each
direction. This cross section can be striped on Overland
Trail with 6 foot shoulders on each side. When the south leg
of Overland Trail is opened to traffic, Drake Road should be
stopped at Overland Trail. However, every effort should be
made to allow the predominant traffic movements to operate as
efficiently as possible.
2/12
360/423
2/11�.
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1990 PEAK HOUR TRAFFIC Figure 1
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1992 PEAK HOUR TRAFFIC Figure 2
Land Use
Phase 1 - 12 D.U.
Phase 2 - 24 D.U.
Total
Table 1
Trip Generation
Daily
A.M.
Peak
Trips
Trips
Trips
in
out
120
3
7
240
5
13
360
8
20
Table 2
1992 Peak Hour Operation
Intersection
Drake/Overland Trail
WB LT
WB RT
SB LT
Overland Trail/Skimmerhorn
WB LT/T/RT
EB LT/T/RT
SB LT
NB LT
P.M.
Peak
Trips
Trips
in
out
8
4
15
9
23
13
Level of Service
AM PM
B
A
A
A
A
A
A
D
A
A
A
A
A
A
APPEND I X
1985 HCM: UNSIGNALIZED INTERSECTIONS Page-1
IDENTIFYING INFORMATION
AVERAGE RUNNING SPEED, MAJOR STREET.. 30
PEAK HOUR FACTOR ..................... .9
AREA POPULATION ........ __.............. 8D000
NAME OF THE EAST/WEST STREET......... drake
NAME OF THE NORTH/SOUTH STREET ....... overland trail
NAME OF THE ANALYST .................. mJd
DATE OF THE ANALYSIS .(mm/dd/yy)...... 10/20/90
TIME PERI00 ANALYZED ................. am pm l99aY
OTHER INFORMATION-....
INTERSECTION TYPE AND CONTROL
INTERSECTION TYPE;: T-INTERSECTION
MAJOR STREET DIRECTION: NORTH/SOUTH
CONTROL TYPE WESTBOUND: STOP SIGN
TRAFFIC VOLUMES
--------------------------------------
EB WB NB SB
---- ---- ---- ----
LEFT -- 25 0 _ 384
THRU -- 0 6 3
RIGHT -- 179 50 0
NUMBER -OF LANES
---------------------------------------------------------------------
EB WB NB SB
------- ------- ------- -------
LANES -- 2 1 1
CAPACITY AND LEVEL -OF -SERVICE Page-3
---------------------------------------------------------------------
POTEN- ACTUAL
FLOW- TIAL MOVEMENT SHARED RESERVE
RATE CAPACITY CAPACITY CAPACITY CAPACITY
MOVEMENT v(pcph) c (pcph) c (pcph) c (pcph) c = c - v LOS
p M SH R SH
------- -------- --------------------- ------------ ---
MINOR STREET
W8 LEFT 31 575 351 351 321 8
RIGHT 219 1000 1000 1000 781 A
MAJOR STREET
SB LEFT 469 1000 1000 1000 531 A
IDENTIFYING INFORMATION
NAME OF THE EAST/WEST STREET....... drake
NAME OF THE NORTH/SOUTH STREET.... overland trail
DATE AND TIME OF THE ANALYSIS.....:. 10/20/90 ; am pm 1990,.
OTHER INFORMATION.....
0
1985 HCM: UNSIGNALIZED INTERSECTIONS Page-1
zzxxzxxxxzzxxzxzzzzzzzzzzzxxxxxxzzzxxxxxxxxzzxxxxxzxxxxxxxxxzxzxxzxxx
IDENTIFYING INFORMATION
---------------------------------------------------------------------
AVERAGE RUNNING SPEED,, MAJOR STREET.. 30
PEAK HOUR FACTOR ..................... .9
AREA POPULATION .............. 80000
NAME OF THE EAST/WEST STREET......... drake
NAME OF THE NORTH/SOUTH STREET....... overland trail
NAME OF THE ANALYST .................. mJd
DATE OF THE ANALYSIS (mm/dd/yy)_.._.. 10/20/90
TIME PERIOD ANALYZED .................. am pm 199aV
OTHER INFORMATION....
INTERSECTION TYPE AND CONTROL
INTERSECTION TYPE: T-INTERSECTION
MAJOR STREET DIRECTION: NORTH/SOUTH
CONTROL TYPE WESTBOUND: STOP SIGN
TRAFFIC VOLUMES
-----------------------------------
EB WB NB SB
---- ---- ---- ----
LEFT -- 59 0 467
THRU -- 0 5 9
RIGHT -- 354 36 0
NUMBER OF LANES
EB WB NB SB
------ -------------- -------
LANES -- 2 1 1
CAPACITY AND LEVEL -OF -SERVICE Page-3
---------------------------------------------------------------------
POTEN- ACTUAL
FLOW- TIAL MOVEMENT SHARED RESERVE
RATE CAPAC;ITY CAPACITY CAPACITY CAPACITY
MOVEMENT v(pcph) c (pcph) c (pcph) c (pcph) c = c - v LOS
p M SH R SH
------- -------- --------- ------------ ------------ ---
MINOR STREET Is
WB LEFT 72 514 261 -261 189 D
RIGHT 433 1'000 1000 1000 567 A
MAJOR STREET
SB LEFT 571 1,000 1000 1000 429 A
IDENTIFYING INFORMATION
NAME OF THEEAST/WEST STREET:...... drake
NAME OF THE NORTH/SOUTH STREET.... overland trail
DATE AND TIME OF THE ANALYSIS..... 10/20/90 ; am pm 1990
OTHER INFORMATION....
1985.HCM: UNSIGNALIZED INTERSECTIONS Page-1
Y#XXX#####X#X#XX##X######XXXX####YX#XXXXXXX##X#######X###XX#XXX######
IDENT.IFY.ING INFORMATION
---------------------------------------------------------------------
AVERAGE RUNNING SPEED, MAJOR STREET.. 30
PEAK HOUR FACTOR ..................... .9
AREA POPULATION ...................... 80000
NAME OF THE EAST/WEST STREET......... skimmerhorn
NAME OF THE NORTH/SOUTH STREET....... overland trail
NAME OF THE ANALYST .................. mJd
DATE OF THE ANALYSIS (mm/dd/yy).._.._ 10/20/90
TIME PERIOD ANALYZED ................. a
pm 199a1.
OTHER INFORMATION._... -
INTERSECTION TYPE AND CONTROL
---------------------------------------------------------------------
INTERSECTION TYPE: 4-LEG
MAJOR STREET DIRECTION: NORTH/SOUTH
CONTROL TYPE 'EASTBOUND: STOP SIGN
CONTROL TYPE WESTBOUND: STOP SIGN
TRAFFIC VOLUMES
---------------------------------------------------------------------
EB WB NB SB
---- ---- ---- ----
LEFT 20 0 0 2
THRU 0 0 30 18
RIGHT 0 6 0 8
NUMBER OF LANES AND LANE USAGE
---------------------------------------------------------------------
EB WB NB SB
----------� - ---------------
LANES -
LANE USAGE LTR LTk
CAPACITY AND LEVEL -OF -SERVICE Page-3
---------------------------------------------------------------------
POTEN- ACTUAL
FLOW- TIAL MOVEMENT SHARED RESERVE
RATE CAPACITY CAPACITY CAPACITY CAPACITY
MOVEMENT v(pcph) c (pcph) c (pcph) c (Pcph) c - c - V LOS
p M SH R SH
MINOR STREET
EB LEFT 24 788 784 > 784 > 759 >
THROUGH 0 860 859 > 784 859 > 759 859 >A A
RIGHT 0 999 999 > 999 > 999 > A
MINOR STREET
WB LEFT 0 791 789 > 789 > 789 > A
THROUGH 0 856 854 > 999 854 > 992 854 >A A
RIGHT 7 999 999 > 999 > 992 > A.
MAJOR STREET
SB LEFT 2 998 998 998 996 A
NB LEFT 0 999 999 999 999 A
IDENTIFYING INFORMATION
NAME OF THE EAST/WEST STREET...... skimmerhorh
NAME OF THE NORTH/SOUTH STREET.... overland trail
DATE AND TIME OF THE ANALYSIS.,.... 10/20/90 ; am pm 1990
OTHER INFORMATION....
1
1985 HCM: UNSIGNALd2ED INTERSECTIONS Page-1
#i#i#iXX#Y###iii##X#iiiiiiX##iiiiiiii##Xi#X#iiii#iiiii#XXX##XX###Yii#
IDENTIFYING INFORMATION
AVERAGE RUNNING SPEED. MAJOR STREET.. 30
PEAK HOUR FACTOR ...............-...... .9
AREA POPULATION ...................... 80000
NAME OF THE EAST/WEST STREET....:..... skimmerhorn
NAME OF THE NORTH/SOUTH STREET....... overland trail
NAME OF THE ANALYST .................. mJd
DATE OF THE ANALYSIS (mm/dd/yy)...... 10/20/90
TIME PERIOD ANALYZED .................`-enr/pm) 199g/
OTHER INFORMATION....
INTERSECTION TYPE AND CONTROL
INTERSECTION TYPE: 4-LEG
MAJOR STREET DIRECTION: NORTH/SOUTH
CONTROL TYPE EASTBOUND: STOP SIGN
CONTROL TYPE WESTBOUND: STOP SIGN
TRAFFIC VOLUMES
---------------------------------------------------------------------
EB WB NO SB
LEFT 13 0 0 6
THRU 0 0 24 39
RIGHT 0 4 0 23
NUMBER OF LANES AND LANE USAGE
EB WB NB SB
-------------- ------- -----
LANES 1 1 2 2
LANE USAGE -LTR LTR
CAPACITY AND LEVEL -OF -SERVICE Page-3
---------------------------------------------------------------------
POTEN:- ACTUAL -
FLOW- TIAL MOVEMENT SHARED RESERVE
RATE CAPACITY CAPACITY CAPACITY CAPACITY
MOVEMENT v(pcph) c (pcph) c (pcph) c (pcph) c = c - v LOS
p M SH R SH
------- -------- --------- ------------ ------------ ---
MINOR STREET
EB LEFT 16 761 756 > 756 > 740 >
THROUGH 0 831 827 > 756 827 > 740 827 >A A*
RIGHT 0 998 998 > 998 > 998 > A
MINOR STREET
WS LEFT 0 753 750 > 750 > 750 > A
THROUGH 0 818 814 .> 999 814 > 994 814 >A A
RIGHT 5 999 999 > 999 > 994 > A
MAJOR STREET
SO LEFT 7 999 999 999 991 A
NB LEFT 0 997 997 997 9.97 A.
IDENTIFYING INFORMATION
NAME OF THE EAST/WEST STREET...... skimmerhorn
NAME OF THE NORTH/SOUTH STREET.... overland trail
DATE AND TIME OF THE ANALYSIS..... 10/20/90 ; am pm 1990
OTHER INFORMATION....