HomeMy WebLinkAbout2008-01-02 PACKET 08.A.REQUEST OF CITY COUNCIL ACTION COUNCIL AGENDA
MEETING ITEM #
DATE 01/02l08
PREPARED BY: Enqineerinq Jennifer Levitt
ORIGINATING DEPARTMENT STAFF AUTHOR
�,:,������.����.�,��.�,:�������,,��.���������,,,,��
COUNCIL ACTION REQUEST:
Approve the traffic control analysis of the 2008 Pavement Management Area and authorize the
implementation of the recommendations in the spring of 2008.
STAFF RECOMMENDATION:
It is recommended to approve the traffic control analysis of the 2008 Pavement Management
Area and authorize the implementation of the recommendations in the spring of 2008.
ADVISORY COMMISSION ACTION:
❑ P�ANNING
� PUBLfC SAFETY
� PUBLIC WORKS
❑ PARKS AND RECREATION
❑ HUMAN SERVICES/RIGHTS
❑ ECONOMIC DEV. AUTHORITY
❑
DATE
11/20/07
11 /20/07
REVIEWED
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APPROVED
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DENIED
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SUPPORTING DOCUMENTS:
� MEMO/LETTER: Jennifer Levitt, December 28, 2007
❑ RESOLUTION:
❑ ORDINANCE:
❑ ENGINEERING RECOMMENDATION:
❑ LEGAL RECOMMENDATION:
� OTh1ER: Traffic Control Analysis 2008 Pavement Management Area
ADMINISTRATORS COMMENTS:
,-,
,o� - �c; ��a ���'�Y
% City Administrator
/ 2 —Z�:' ai `,�
Date
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COUNCI� ACTION TAKEN: APPROVED ❑ DENIED ❑ OTHER
CITY OF COTTAGE GROVE
MINNESOTA
To: Honorable Mayor and City Council
Ryan Schroeder, City Administrator
From: Jennifer M. Levitt, P.E., City Engineer
Date: December 28, 2007
Re: 2008 Pavement Managernent Project: Traffic Control Analysis
Background:
In 2004 a traffic control analysis was done for the Thompson Grove Neighborhood. The traffic
control analysis was completed in July of 2004 and then on July 6, 2005 Council approved the
implementation of the traffic contro� changes. The traffic control changes were made with
success and no problems were encountered.
Since that study, it has been determined the City as a whole snould be reviewed for traffic
control signage to help ensure consistency in the signage and that intersections have the
proper intersection control. It was determined that it would not be feasible to do the whole
City at once, plus the implementation of changes wouid be challenging at that scale. So the
direction was to do traffic control analysis in future pavement management areas or in future
seal coat areas or district as outlined in the pavement management program.
Councii authorized a traffic controi analysis to be completed for the 2008 Pavernent
Management Area on September 5, 2007.
Discussion:
The final report for the Traffic Control Analysis has been completed for the 2008 Pavement
Management Area; please see enciosed report dated December 13, 2007. The report was
presented at a joint meeting of the Public Safety, Health and Welfare and Public Works
Commissions. Both Commissions unanimously approved the Traffic Control Analysis for the
2008 Pavement Management Area.
Implementation of recommendations wiil take place in the spring. The sign changes will be
done by Public Works staff and the pavement marking modifications will be done under the
2008 Pavement Management contract. Notices will be mailed to ali residents in the affected
areas prior to the sign changes to provide information and specific dates for changes.
Recommendation:
It is recommended to approve the Traffic Control Analysis for the 2008 Pavement Management
Area and authorize the implementation of the recommendations in the spring of 2008.
Traffic Control Analysis
2008 Paveardelzt tl2araagef�aeaat Ar•ea
Cottage Grove, Minnesota
SEH No. A-COTTG0801.00
December 13, 2007
� ,�
MulUdisupiine+d. Single Source
T: sclucions far mc�re tiyan I$ yea� s.
2008 Pavement Management Area
Traffic Control Analysis
Cottage Grove, Minnesota
SEH No. A-COTTG0801.00
December 13, 2007
I hereby certify that this report was prepared by me or under my direct
supervision, and thst I arn a duly Licensed Professional Engineer under the laws
of the State of Minnesota.
T� . Dago , PE �
Date: I2'����� Lic. No.: 40535
Reviewed by: �,` � X�a� J�.. f 2/( 3/ p�7
CJ Date
Short Elliott Hendrickson Inc.
3535 Vadnais Center Drive
Street Paul, MN 55110-5196
651.4902000
Table of Contents
Certification Page
Title Page
Table of Contents
Page
1.0 Purpose and Need.....,...
......................................................1
2 .0 Existing Conditions .................................................................................................1
2.1 Functional Classification of Roadways ..............................................................1
2.2 Traffic Volumes .................................................................................................4
2.3 Existing Traffic Control ......................................................................................4
3.0 Traffic Control Analysis ..........................................................................................8
3.1 Recommended Signing Criteria ........................................................................8
3.2 Study Area Analysis .......................................................................................... 9
4.0 Recommendations ..................................................................
List of Figures
...18
Figure1 — Project Location ..................................................................................................3
Figure 2— Road Ciassification And Traffic Voiume ..............................................................5
Figure 3— Existing Traffic Control .......................................................................................6
Figure 4— Existing Traffic Control .......................................................................................7
Figure 5— Recommended Intersection Traffic Control Modifications .................................14
Figure 6— Recommended Intersection Traffic Controi Modifications .................................15
Figure 7— ftecommended Non-Intersection Traffic Control Modifications ..........................16
Figure 8— Recommended Non-Intersection Traffic Control Modifications .......................... 17
SEH is a reQistered trademark ot Short Elliott Hendrickson Ine.
Traffic Control Analysis A-COTTG0801.00
City of Cottage Grove Page i
December 13, 2007
Traffic Control Analysis
2008 Pavement Management Area
Prepared for City of Cottage Grove
1.0 Purpose and Need
The purpose for the 2008 Pavement Management Area traffic control study is
to evaluate the existing traffic control in the project area and make
recommendations for additions, removals, and revisions in order to conform
to City and Minnesota Manual on Uniform Tra�c Control Devices
(MMITI'CD) standards, and to provide consistent tra�c control throughout
the project area.
Figure 1 shows the project location.
2.0 Existing Conditions
2.1 Functional Classificatian of Roadways
The current functional classiFication of the study area roadways is listed in
the City's comprehensive plan. The fol]owing roadways in the study area are
listed as a Collector in the document:
■ Ideal Avenue/76th St.
■ indian Boulevard
■ Innsdale Avenue (South of 70th St.)
■ Idsen Avenue (North of 70th St.)
The remaining roadways in the study area are all local, residential roadways,
with the exception of Hinton Avenue. Hinton Avenue is included in the study
area, and is a minor arterial roadway.
- ......, .., .,, ....,. . - _
A-COTTG0801.00
Page 1
2.2 Traffic Volumes
Average daily traffic (ADT) volumes were obtained from counts conducted
by the City of Cottage Grove and from State Aid traffic volume maps. The
City conducted traffic counts nt a limited number of intersections in May
2007 and August 2007. Traffic count information from 2005 was used for
MSA and CSAH roads.
Figure 2 shows the road clnssification and traffic volume information in the
study area.
2.3 Existing Traffic Control
The existing conditions assessment included a field review of the existing
signing and striping in the projact area. Also noted in the assessment was the
intersection control: signal, Z-way or all way stop, yield or uncontrolled.
Figures 3 and 4 show the existing traffic control in the study area.
The study area is residential, with private driveways on all of the collector
and local roads in the smdy area. There is a driveway to Cottage Grove High
School on Ideal Avenue across from 79`� Avenue, and a driveway to
Crestview Elementary School on Hinton Avenue. There are laneways on
both sides of the road on Indian Boulevard and on Ideal Avenue from Hinton
Avenue to east of 75�' Street (laneway designation noted in the City of
Cottage Grove Comprehensive Plan). There is sidewalk on the south/west
side of Ideal Avenue from east of 75`" Avenue to 80`� Street. There is a trail
on the east side of Hinton Avenue from 80'� Street north to 76`� Street, and on
the west side between 70`� Street and S0�' Street. Parking is allowed along all
local and collector roads in the study area, althouch there aze parking
restrictions because of the proximity to the high school.
All local and collector roads in the study area aze two lane roadways. These
roadways are not striped, wi[h the exception of 76th StreeUideal Avenue,
Indian Avenue, and one block of 75�' Street. 76`� StreedIdeal Avenue, Indian
Avenue, and 75�' Street between ivystone Avenue and Jamaica Avenue are
striped with double yellow centerlines and shoulder striping. There are two
marked approach lanes on SB Ideal Avenue at 80th Street (right, left), and a
marked right turn lane on WB 76�' Street at Hinton Avenue. There are striped
crosswalks on Indian Boulevard at Jamaica Avenue, on 75�' Street at Jamaica
Avenue, and on Ideal Avenue at SOth St, and crosswalks at 7 other locations
along Ideal Avenue.
A11 collector roads bounding the study area are striped, two lane roadways.
All arterial roadways bounding the smdy area are four lane roadways, with
the exception of Hinton Avenue. Hinton Avenue is a four lane roadway,
with no turn lanes, bet�v�en 80`� Avenue and south of 70�' Avenue. In the
NB direction, the left through lane is dropped as a left turn lane at 70�' Street
North of 70`� Street, Hinton Avenue has one NB throu�h lane, and right and
left turn lanes at 69�' Street and 67�' Street. There are right and left tum lanes
on 80 Street at Hinton Avenue, and a]eft turn lane on EB 80`" Street at Ideal
Avenue. There are right turn lanes to all local road on 70`� Street, and a
bypass lane on WB 70`�' at Isleton. There are left mrn lanes on Jamaica
Avenue at Indian Boulevard.
Traffic Control Analysis A-COTTG0801.00
City of Cottage Grove Page 4
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AflEA TRAFFiC CONTROI ANALYS65
CITY OP COTTAGE GROVE
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LEGEND
onie- EXIS7ING TRAFPIC CONTROL FIGURE
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"' �� � 2008 PBVEMENT MANAGEMENT N0. 3
SEH � ui «.w R/�S/200) ppEA T11qGFIC CONTROL ANALYSIS
CfiY OF COTTAGE GPOVE PAGE B
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! ,,, w L,� � i � \ i onte EXISTING TRAPFIC CONTROL No.4
-� �/ lPJ ZU � C___i� �� � B�5 �' �� — '� 2008 PAVEMENT MANAGEMENT
,�,�,� LI SCp _� 2/ 3/300/ ARFA TPpfpC CONTPOL qryqLYSIS
Lfl att ov coiince cxove PAGE ]
3.0 Traffic Control Analysis
The existing traffic control in the study area was analyzed by studying the
area as a whole, and by reviewing each intersection and roadway to note any
special conditions.
It is very important to provide signing and intersection control consistently
tluoughout the neighborhood, City of Cottage Grove, and State of Minnesota.
The NIlVIUTCD provides standazds, guidelines, and recommendations for
traffic control on all public roadways in the State. The City of Cottage Grove
also has written and unwritten policies regarding the placement of signing
and striping.
3.1 Recommended Signing Criteria
SEH pxoposes that signing revisions in the study azea be based on the
recommended signing criteria indicated below. Some of these criteria are
already City policies. If the City agrees with these criteria, it is
recommended that the City formally adopt these criteria as its signing policy.
1. At T-intersections. State law dictates that traffic on the "T" approach leg
shall yield to traffic on the through leg. Therefore, T-intersections with
local-]ocal roadways will be uncontrolled.
2. Because of the higher volume of traffic on coliector and higher roads, it
is desirable for traffic on the `T" approach leg to stop at these
intersections. Therefore, stop signs will be installed at the "T" approach
legs at all T-intersections with roadways with a classification of collector
or higher.
3. It is difficult to clearly determine which vehicles are required to yield at
a 4-leg intersection. Therefore, a114-leg intersections will have stop
control on the minor street If the intersection is of two local roads,
determination of the road to stop �vill be made by reviewing the
surrounding roadways.
4. For higher volume intersections, analysis will be made based on the
warrants in the MMLITCD regarding all-way stop control or
signatization of the intersection.
5. Warning signs shall be used only where special conditions exist. Overuse
of these signs will make them ineffective. Therefore, warning signs will
be installed on collector and higher roads to warn of unexpeMed
conditions. On local roads, warning signs will only be installed to warn
of conditions not typically encountered on a low speed residential street.
6. The statutory speed limit on residential roads is 30 mph. Therefore,
speed limit signing is not normally needed on these roadways. Speed
limit signing will be insta]]ed on local, residential roadways only if the
speed limit is other than 30 mph, or where the statutory 30 mph speed
limit is not apparent.
7. On roads with a classification of collector or higher, speed limit signs
will be located after major intersections, at the locations of speed ]imit
changes, and at other locations as determined by Engineering study.
8. City policy stntes that all mid-block crosswalks will be mnrked and
crosswalk siens wil( b� installed. If the speed (imit is above 30 mpti, or
Traffic Control Analysis A-COTTG0801.00
City of Cottage Grove Page 8
if there are sight restrictions approaching a crosswalk, advance crosswalk
signs will be installed.
9. The City has an unofficial policy regarding NO OUTLET signs. These
signs �vill be installed, when requested by residents, if the terminus of the
roadway cannot be seen from the intersection. Existing DEAD END
signs will be removed and replaced with NO OUTLET signs.
3.2 Study Area Analysis
In general, the signing in the study area conforms to the above criteria. For
example, most ]ocal-local T-intersections are uncontrolled, and the T-
intersections with collectors and arterials are controlled on the minor
approach legs with stop signs.
The intersection of Indian Boulevard (collector) and Jamaica Avenue (minor
arterial) is currently all-way stop controlled. It is assumed that this all-way
stop was installed based on the warrants and evaluation criteria set forth in
the MMU"PCD, and based on evaluation of the traffic control along the
Jamaica Avenue corridor.
The intersection of Hinton Avenue (minor arterial) and 70`� Street (minor
arterial) is currently all-way stop conh�olled. It is assumed that this all-way
stop was instalIed based on the warrants and evaluation criteria set forth in
the MYIUTCD.
The intersection of Hinton Avenue (minor arterial) and 80`� Street (minor
arteriai) is currently traffic signal controlled. It is assumed that this signal
was installed based on the wanants and evaluation criteria set forth in the
MMUTCD.
The following details areas where existing signing is in-place that doesn't
meet the above criteria, or where signing needs to be installed to meet the
criteria:
1. There is an area near 75`� Street and Inman Avenue where YIELD signs
have been installed at the local-local T-intersections. There were no
observed sight restrictions at these locations. The YIELD signs should
be removed at the following locations:
a. Inman Avenue at 75�' Street (N and S)
b. Innsdale Avenue at 75�' Street
c. Inwood Avenua at 75�' Street
d. Inman Avenue at Inskip Trail.
2. There is a YIELD sign at 74�' Street Court east of lndian Boulevard.
This sign should be removed, and because Indian Boulevard is a
collector road, at STOP sign should be installed at this location.
3. There are some locations where stop signs are located on the `T" leg of
local-local intersections. There were no observed sight restrictions at
tl�ese locations. The STOP signs should be removed at the following
locations:
a. Homestend Avenue at Idea] Avenue (ilorth of 70`� St.).
Trafiic Control Analysis A-COTTG0801.00
City of Cottage Grove Page 9
b. 77"' Street at Hyde Avenue
c. Hydram Avenue at 75�` Street
d. Irvin Avenue at 77` Street
e. Irvin Avenue at Isleton Avenue.
f. Isleton Avenue at 75�' Street
g. 75`" Street at Irvin Avenue
h. Iverson Avenue at 75`� Street
i. Iverson Avenue at Ivystone Avenue
4. The existing 4-leg intersection of 74�' Street and Hyde Avenue is
currently yield controlled on Ryde Avenue. There is an existing SLOW
BLIND XING sign on NB Hyde prior to the intersection. Because this is
a local-local intersection and there are sight limitations on Hyde, it is
desirable to revise the traffic control at this intersection. It is
recommended that the YIELD and SLOW BLIND XING signs are
removed from Hyde, and STOP signs placed on 7d`� Street.
5. There is an existing stop sign located afrer the trail at the intersection of
Ideal Avenue and 80�' Street. There is an existing crosswalk with a stop
bar located prior to the crosswalk. The stop sign should be relocated to
behind the trail, at the same location as the stop bar.
6. These is an existing stop sign on SB Idsen Avenue at 71 Street. Because
of the cul-de-sac south of 71 Street, the stop sign is appropriate at this
location. However, tree branches are obstructing the sign and should be
trimmed.
7. The existing 4-way stop at 76th Street and Hyde Avenue does not meet
the wanants set forth in the MMIITCD. The daily volumes of each leg
of the intersection are shown the Figure 2. Based on these volumes, the
volume warrant of 300 approach vehicles per hour for a minimum of
eight hours on the major street approaches, and 200 vehicles per hour for
a minimum of eight hours on the minor street approaches, is not met.
This intersection is a 4-leg intersection with a local road and collector
road. The stop signs should be removed from 76th Street (collector road)
and remain on Hyde Avenue (local road), and the 4-way plaques should
be removed from the Ayde Avenue signs. In addition, the STOP
AHEAD sign on 76th Street east of Hyde Avenue should be removed
8. The existing 4-way stop at Indian Boulevard and Innsdale Avenue also
does not meet the intersection volume wanants noted in 7. above.
However, three legs oFthis intcrsection are classified as collector, and
the City had concems about traffic movements at this intersection. One
criteria listed in the MML"TCD for consideration of a 4-way stop is "an
intersection of two residential neighborhood collector (through) streets of
similar design and operating characteristics where inultilane stop control
�vouid improve traffic operational characteristics of the intersection".
Because three of the d legs of the intersection are classified as coilector,
and the north leg carries the highest volume of through trafFic, an all-way
stop is appropriate at this location.
Traffic Control Analysis A-COTTG0801.00
Crty of Cottage Grove Page 10
There is an existing all-way stop at the 3-leg intersection of Idsen
Avenue and 68th Street. Idsen Avenue is a collector roadway, and C8th
Street is a local roadway. There are no traffic counts at this intersection,
but counts on Idsen Avenue just south of this intersection show a volume
well oelow that needed to meec tne warrants notecl in 7. above. The stop
signs should be removed from Idsen Avenue, and the ALL WAY plague
should be removed from the 68th Street sign. Also, the STOP sign on
68th Street is obstructed by tree branches and leaves, and the tree should
be trimmed.
10. There are a number of speed limit signs lucated throu�hout the project
area that are located in residential azeas, where the statutory speed limit
applies. The speed limit signs should be removed at the following
locations:
a. Ideal Avenue between Homestead Avenue and Hyde Avenue (NB
and SB) (North of 70�' Street)
b. Homestead Avenue between 67�' Street Court and 68`� Street Court
(NB and SS)
c. Ideal Avenue north of 70�' Street
There is a speed limit sign on 72 Avenue east of Hinton Avenue. There
is a church driveway and a number of townhome driveways east of
Hinton Avenue, and the 30 mph statutory speed limit is not easily
apparent. The sign on 72n Street east of Ainton Avenue is appropriate,
and should remain inplace.
11. Based on the recommended criteria of installing speed limit signs on
collector roads, a speed limit sign should be installed at the following
locations:
a. NB Ideal Avenue north of the school zone
b. SB Innsdale Avenue south of 70`" Street
c. NB Idsen Avenue north of 70�` Street
d. SB Idsen Avenue south of 65�' Street
1 Z. There are an excessive number of speed limit sibns on Hinton Avenue
between 80`� Street and 70` Street. The signs north of 80�' Street and
south of 70"' Street are appropriate, but it is adequate to have only one
additiona] speed limit in each direction on Hinton Avenue. The
followine speed limit signs should be removed:
a. NB sign north of 76 Strest
b. SB sign south of 72° Street
c. SB sign south of 74` Strect
13. There are a few curve tvaming signs located in the project area.
However, none of tliese conditions is excessively dangerous, nor
unexpected in a residential area. Additionally, these signs are not
consistent when looking at the area as a whole (i.e. similar, unsigned
conditions exist throughout the study area). Therefore, it recommended
that the following signs be removed:
Traffic Control Analysis A-COTTG0801.00
City of Cottage Grove Page 11
a. Turn signs with 15 mph advisory plaques on Homestead Avenue east
of 66`� Street and 66�' Street south of Homestead Avenue.
b. Turn sign on Imperial Avenue south of 71 Street
a Chevrons at Irnperial and 71�` Street
d. Reverse curve signs with 30 mph advisory speed plaques on Imperial
Avenue south of Imperial Avenue Court and north of 73` Street
14. There are two existine playground signs in the project area. According
to City staff, this sign is no longer being used in the City. This sign
should be removed from the following locations:
a. Idsen Avenue north of 70`� Street
b. Indian Boulevard east of Inwood Avenue
15. There are no existing pedestrian crossing signs at mid-block trail
crossings with local roads. In order to conform with the City's policy,
pedestrian crossing signs (W 11-2) with down anows (W 16-7mpL)
should be added at the following locations:
a. Trail crossing on Imperial Avenue north of Imperial Court
b. Trail crossing on Innsdale Avenue north of Indian Boulevard.
16. The existing advance trail crossing signs on Hinton Avenue north of 7�`"
Street have BLRVD TRAIL t1IIEAD plaques installed below them.
These plaques should be removed.
17. The existing DEAD END and NO OUTLET signs appear to be
appropriately placed, with the exception of the sign on 79`� Street east of
Ideal Avenue, as noted in Item 19 below. The City's policy of installing
these signs at residents' requests is proper for this type of sign. To
conform to City policy, the DEAD END signs should be replaced with
NO OiTI'LET signs at the following locations:
a. Hyde Avenue north of 73r Street
b. 74"' Street Court east of Indian Boulevard
c. 78`� Street Court east of Inskip Trail
The existing sign at 78`� Street is obstructed by tree foliage. If the ne�v
I�O OLTTLET sign is also obstructed, the tree should be trimmed.
18. Based on fieid review, and review of the study area map, there were a
few locations where the through road ends in a cul-de-sac that is not
visible from the intersection, or where the dead end is not apparent If
requested by residents, �i0 OliTLET signs may be added at the
following locations:
a. 66�` Street Court east of Ideal Avenue
b. 71s` Street Court south of 71" Street
c. Ivystone Avenue north of 72"� Street
19. The existing NO OUTL�T sign on 79�` Street east of Ideal Avenue is not
accurate at this (ocation. Vehicles can get back to Ideal Avenue if they
take this road�vay. If there is concern about vehicles esiting the high
Traffic Control Analysis A-COTTG0801.00
City of Cottage Grove Page 12
school taking this road to get to 80`� Street, the existing sign should be
replaced with a more specific sign, such as NO ACCESS TO 80
STREET
20. There is an existing laneway on 76` Street from Hinton Avenue to cast
of 75`� Street. The laneway is to be used by pedestrians and bicyclists,
and parking is allowed during limited times. There are existing signs on
this roadway stating that the shoulder is for bicyclists and pedestrians
onty, and there are parking restriction signs located below these signs.
These signs are confusing for motorists and pedestrians/bicycliscs. The
top sign is not appropriate because the lane may be used to park vehicles
as �vell as for pedestrians and cyclists. The bike lane shoulder signs
along 76` Street should be removed.
21. City staff expressed concem about the lefr through lane on Hinton
Avenue that becomes a left turn lane at 70�' Street. They indicated that
some drivers intending to go ttu�ough at this location eet caught in the
]ane and need to make a lane shift just prior to the intersection. In the
southbound direction, there is an opposing left turn lane, so the existing
northbound Ieft tum lane must remain at this location. However, one
option at this location is to drop the northbound left through lane prior to
the intersection, then introduce a left turn lane. The City has indicated
that Hinton Avenue may be seal coated in the near future, and the
restriping and revised sib ing could be completed at that time.
Figures 5 and 6 show the recommended intersection traffic control
modifications in the study area.
Figures 7 and 8 show the recommended non-intersection traffic control
modifications in the study area.
Pavement marking revisions were not included as part of this study.
Pavement markings will be completed as part of the 2008 Pavement
Management Area Construction plans.
Traffic Control Analysis A-COTTG0801.00
City of Cottage Grove Page 13
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J oni[ RECOMMENDED NON-MTERSECTION TRAFFIC CONTROL MODIFICATIONS FIGURE
" �e {�:.�.,..�L�:.��� N0.8
. 2006 PAVFMENT MANAGEMENT
�1��}�jpp! RflEA TflAFFlC CONTftOL ANALY515
SEH �� f � � µ����� cm oF conwce cawe ppGE i'
4.0 Recommendations
Based on the traffic analyses and assessments presented in this report, the
following changes are recommended:
Remove the siens at the followine ]ocations:
■ YIELD signs on Inman Avenue at 75`� Street (N & S)
■ YIELD sign on I�insdale at 75�' Street
■ YIELD sign on Inwood Avenue at 75`� Street
■ YIELD sign on Inman Avenue at Inskip Trail
■ STOP sign on Homestead Avenae at Ideal Avenue (north of 70`� Street).
■ STOP sign on 77`� Street at Hyde Avenue
■ STOP sign on Hydram Avenue at 75`" Street
■ STOP sign on Irvin Avenue at 77`� Street
■ STOP sign on Irvin Avenue at Isleton Avenue.
■ STOP sign on Isleton Avenue at 75`" Street
a STOP sign on 75`� Street at Irvin Avenue
■ STOP sign on Jefferson Avenue at 75`" Street
■ STOP sign on 7eFferson Avenue at Ivystone Avenue
■ STOP signs on 76�' Street at Hyde Avenue (E & W)
■ 4-way plaque on Hyde Avenue at 76`� Street (N & S)
■ STOP AHEAD sign on Ideal Avenue east of Hyde Avenue
■ STOP sions on Idsen Avenue at 68�' Street (N & S)
■ ALL WAY plaque on 68�' SVeet at Idsen Avenue
■ SPEED LIMIT sign on Ideal Avenue between Homestead Avenue and
Hyde Avenue (NB and SB) (north of 70�' Street)
■ SPEED LIMIT sign on Homestead Avenue between 67`" Street Court
and 68�' Street Court (NB and SB)
■ SPEED LIMIT sign on 76"' Street east of Homestead Avenue.
■ SPEED LIMIT sign on Ideal Avenue. north of 70�' Street
■ SPEED LIMIT sign on SB Hinton Avenue south of 72" Street
■ SPEED LIMPI' sign on NB Hinton Avenue south of 74`" Street
■ Turn signs with 15 mph advisory speed plaques on Homestead Avetme
east of 66 Street and on 66�' Street south of Homestead Avenue.
■ Turn sign on Imperiai Avenue. south oF 71 Streat
r Chevrons at Imperial and 71�` Street
■ Reverse curve signs with 30 mph advisory speed plaque on Imperiai
Avenue south of Imperial Avenue Court and north of 73` Street
■ Playground sign on Idsen .4venue north of 70'� Street.
-
Traffic Control Analysis A-COTTGO807.00
City of Cottage Grove Page 18
■ Playground sign on Indian Boulevard east of Inwood Avenue.
BLIlVD TRAIL AHEAD plaques on advance pedestrian crossing signs
on Hinton Avenue.
■ Bike shoulder tane siens along Ideai Avenue.
Add si�ns at the followine locations:
■ SPEED LIMIT 30 (R2-1) sign on AB Ideal Avenue north of school zone.
■ Speed Limit 30 (R�-1) sign on SB Innsdale Avenue south of 70�' Street.
■ Pedestrian crossing (W 11-2) signs with down arrow (W 16-7mpl) at trai]
crossing on Imperiai Avenue. north of Imperial Court (NB and SB)
■ Pedestrian crossing (W l l-2) signs with down arrow (W 16-'7mp1) at trail
crossing on Innsdale Avenuc north of Indian Boulevard. (NB and SB)
■ NO OUTLET (W 14-2) sign on 66th Street Court east of Ideal Avenue.
■ NO OLJTLET (W 14-2) Sign on 71 Street Court south f 71 Street.
■ NO OIJTLET (W 14-2) sign on ivystone Avenue. north of 72° Street.
Modifv traffic control at the followine locations:
■ Relocate existing stop sign to behind trail on Ideal Avenue at 80`� Street.
■ Remove iV0 OUTLET sign on 79`� Street east of Ideal Avenue and
replace with NO ACCESS TO 80`� STREET sign.
■ Remove YIELD signs on Hydz Avenue at 74`� Street (N & S), remove
SLOW BLL'v� XING sign on Hyde Avenue south of 74'' St, and add
STOP signs on 74'� Street at Hyde Avenue (E & W)
■ Trim the tree at STOP sign on 68`� Street at Idsen Avenue.
■ Trim the tree at STOP sign on Idsen Avenue at 71 Street.
■ Trim the tree at DEAD END sign on 78�' Street east of Inskip Trail.
When traffic control changes are made at the existing 4-way stop
intersections or the existing YIELD controlled 4-leg intersection, warning
signs (Traffic Control Change(s) Ahead) should be temporarily installed in
advance of all approaches. Red flags should also be temporarily installed on
all permanent stop signs at these intersections. It is recommended that the
temporary traffic control be in place for approximately one month.
Traffic Control Analysis A-COTTG0801.00
Ciry of Cottage Grove Page 19