Zone 12 Traffic Study
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Summary
Zone 12 is an area bounded by Central Road to the north, Northwest Highway and
Route 83 to the east, Lincoln Street to the south, and Busse Road to the west.
The area has single and multi-family housing with commercial development in the
downtown business district. Lincoln Junior High School, Westbrook School and St.
Raymond School are within Zone 12.
The traffic study in Zone 12 has focused on implementing two programs: the
Residential Speed Limit Program and Residential Intersection Traffic Control
Program. The Residential Speed Limit Program involves reviewing the speed limit
on each street. This program is being handled by the Engineering Staff. Speed
data has been collected through the use of mechanical traffic counters and
information has been gathered on each street in the neighborhood to assist in
the study. Of the 10.6 miles of streets in Zone 12, 3.9 miles (37%) have a
posted 20 mph speed limit, 3.8 miles (36%) have a posted 25 mph speed limit, and
2.9 miles (27%) have an unposted speed limit (30 mph per Illinois law). Based on
the traffic study, it is recommended the entire 10.6 miles of streets in the
neighborhood have a 25 mph speed limit.
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Speed
Limit |
Existing Miles |
Existing % |
Recommended Miles |
Recommended % |
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20 mph |
3.9 |
37 |
0.0 |
0 |
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25 mph |
3.8 |
36 |
10.6 |
100 |
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30 mph |
2.9 |
27 |
0.0 |
0 |
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TOTAL |
10.6 |
100 |
10.6 |
100 |
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The Residential Intersection
Traffic Control Program is being handled by the traffic engineering consulting
company KLOA, Inc. of Rosemont, Illinois. They have gathered traffic volume data
throughout the neighborhood and have taken measurements at each of the 64
intersections in Zone 12. Overall, their recommendations include an increase in
the number of stop signs and elimination of the use of yield signs.
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Intersection Traffic Control |
Existing Intersections |
Recommended Intersections |
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All-Way Stop Sign Control |
9 |
8 |
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Two-Way/One-Way Stop Sign Control |
24 |
55 |
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Yield Sign Control |
7 |
0 |
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No Intersection Traffic Control |
24 |
1 |
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TOTAL |
64 |
64 |
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Zone 12 Map
(Click on image to view full size)
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Speed Limit Study & Recommendations
Studies have shown that most
motorists will drive at a speed which is safe and reasonable. The modern
practice of setting speed limits at this level actually results in the lowest
accident experience. Interestingly enough, artificially lowering speed limits
has little effect on the speed at which motorists will actually drive making
traffic law violators out of even the most careful motorists. A speed limit set
too low can lead to tailgating, improper passing and reckless driving while a
speed limit set too high can foster unreasonable speeds for a neighborhood.
The Village is striving to see an increase in obedience to the speed limits
resulting in safer streets. This means setting consistent and reasonable speed
limits in a neighborhood. The objective, therefore, of the Residential Speed
Limit Program is to evaluate and determine the appropriate speed limit of each
residential street under the Village’s jurisdiction. Each street is to be
studied based on accepted engineering practices, conformity with the IDOT Policy
on Establishing and Posting Speed Limits and the criteria established in the
Residential Speed Limit Program. To review the streets neighborhood by
neighborhood, Staff has divided the Village into 18 “traffic zones”. This is the
study of Zone 12.
Zone 12 is bounded by Central Road to the north, Northwest Highway and Route 83
to the east, Lincoln Street to the south, and Busse Road to the west. The
neighborhood has approximately 10.6 miles of streets under the Village’s
jurisdiction and contains Lincoln Junior High School, Westbrook School and St.
Raymond School.
The goals of this study were to: (1) gather vehicle speed data along collector
streets and representative residential streets, (2) gather operational
characteristics for each street, (3) evaluate each street based on the
established criteria, and (4) make a determination of the appropriate speed
limit for each street within Zone 12. Operational characteristics include the
number of access points (driveways & intersecting streets), location of
sidewalk, parking restrictions, and accident history along a particular street
under review. Based on the Engineering Staff’s detailed study, the
recommendations are highlighted in the table below.
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Speed Limit |
Existing Miles |
Existing % |
Recommended Miles |
Recommended % |
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20 mph |
3.9 |
37 |
0.0 |
0 |
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25 mph |
3.8 |
36 |
10.6 |
100 |
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30 mph |
2.9 |
27 |
0.0 |
0 |
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Staff also evaluated the three schools within the neighborhood, Lincoln Junior
High School, Westbrook School and St. Raymond School, to determine those streets
that should be posted a school speed limit zone. Along those streets there would
be a 20 mph speed limit during school hours when pedestrians are present. The
table below shows those streets within the neighborhood that are recommended to
be posted a school speed limit zone. No neighborhood streets near Westbrook
School are recommended to have a school speed limit zone since vehicle access to
the school is off of Busse Road.
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Lincoln Junior
High School |
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Street |
From |
To |
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Can-dota Avenue |
Milburn Avenue |
Lincoln Street |
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Lincoln Street |
We-go Trail |
Can-dota Avenue |
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St. Raymond
School |
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Street |
From |
To |
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Elmhurst
Avenue |
Milburn Avenue |
Lincoln Street |
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I-oka Avenue |
Milburn Avenue |
Lincoln Street |
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Lincoln Street |
I-oka Avenue |
Elmhurst
Avenue |
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Milburn Avenue |
I-oka Avenue |
Elmhurst
Avenue |
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Intersection Traffic Control Study & Recommendations
The basic purpose of a stop or yield sign is to define who has the right-of-way
at an intersection. They are not to be used to control speeding as studies have
shown unwarranted signs lead to a high rate of disobedience and can actually
cause higher speeds after the sign as motorists’ look to “make up for lost
time.” Unwarranted signs can also instill a false sense of security for
pedestrians, especially children, and can increase the potential for an
accident.
The Village is striving to see an increase in obedience to our traffic control
signs resulting in safer intersections. This means only stopping traffic before
entering an intersection when it would otherwise be unsafe. The objective,
therefore, of the Residential Intersection Traffic Control Program is to
evaluate and determine the appropriate traffic control at each intersection
under the Village’s jurisdiction. Each intersection is to be studied based on
accepted engineering practices, conformity with the Manual on Uniform Traffic
Control Devices and the criteria established in the Residential Intersection
Traffic Control Program. To review the intersections neighborhood by
neighborhood, Staff has divided the Village into 18 “traffic zones”. This is the
study of Zone 12.
Zone 12 is bounded by Central Road to the north, Northwest Highway and Route 83
to the east, Lincoln Street to the south, and Busse Road to the west. The
neighborhood has 64 intersections under the Village’s jurisdiction and contains
Lincoln Junior High School, Westbrook School and St. Raymond School.
The goals of this study were to: (1) gather vehicle volume data along each of
the streets in the neighborhood, (2) inspect and take measurements at each of
the intersections, (3) review the accident history at each intersection, (4)
evaluate each intersection based on the established criteria, and (4) make a
determination of the appropriate traffic control for each intersection within
Zone 12.
To assist in the evaluation process, a few guidelines have been established by
the Village:
- Intersections will be reviewed on both an individual basis and
neighborhood wide basis
- Only stop signs will be considered as a form of traffic control, not
yield signs
- Stop signs will only be installed on one of the two intersecting streets
unless the data supports the need to control both streets
Based on the detail study performed by the Village’s consultant, KLOA Inc., the
recommendations are highlighted in the table below.
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Intersection Traffic Control |
Existing Intersections |
Recommended Intersections |
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All-Way Stop Sign Control |
9 |
8 |
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Two-Way/One-Way Stop Sign Control |
24 |
55 |
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Yield Sign Control |
7 |
0 |
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No Intersection Traffic Control |
24 |
1 |
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Traffic control at 25 intersections are recommended to have no change while
modifications at 39 intersections are recommended as follows:
- Four (4) intersections are recommended to be converted from all-way stop
sign control to two-way/one-way stop sign control
- Three (3) intersections are recommended to be converted from
two-way/one-way stop sign control to all-way stop sign control
- Two (2) intersections are recommended to change the road which will be
under stop sign control at two-way/one-way stop sign control intersections
- Seven (7) intersections are recommended to be converted from yield sign
control to two-way/one-way stop sign control
- Twenty-three (23) intersections with no traffic control are recommended
to be converted to two-way/one-way stop sign control
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Resident
Brochure |
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Schedule
Tentative Study Schedule
September 27, 2006
Open House at Lincoln Junior High School
October 17, 2006
Recommendations formally presented at Village Board Meeting
May 2007
Restudy along Wa-Pella Avenue June 2007
Results of restudy presented at Village Board Meeting June-July 2007
Bid process to hire contractor to install/remove signs August 2007
Install/remove signs as approved by the Village Board of Trustees
October 2007
Village performs post-study May 2008
Village performs post-study August 2008
Village performs post-study
Key People
Below is contact information for key people involved in this study:
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KLOA, Inc.
Traffic engineering consultant
Michael Werthmann
9575 W. Higgins Road
Suite 400
Rosemont, IL 60018
847-518-9990
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Village of Mount Prospect
Matt Lawrie
Traffic Engineer
1700 W. Central Road
Mount Prospect, IL 60056
847-870-5640
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Contact Us
Contact us by e-mail or phone for more details on this study.
E-mail:
Phone: 847-870-5640
Fax: 847-253-9377
Website: www.mountprospect.org
After Hours Phone (Police Desk): 847-870-5656 |