Zone 16 Traffic Study
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Summary
Zone 16 is bounded by Golf Road to the north, Busse Road to the east, Algonquin
Road and Dempster Street to the south, and the western Village limits. The
neighborhood is a mix of single family homes and multi-family housing
developments. It also contains John Jay Elementary School.
The traffic study in Zone 16 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 Division. 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 4.3 miles of streets in Zone 16, 0.4 miles (9%) have a posted
20 mph speed limit, 3.5 miles (82%) have a posted 25 mph speed limit and 0.4
miles (9%) have an unposted speed limit of 30 mph (per Illinois law). Based on
the traffic study, it is recommended all streets have a speed limit of 25 mph.
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Speed Limit |
Existing Miles |
Existing % |
Recommended Miles |
Recommended % |
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20 mph |
0.4 |
9 |
0.0 |
0 |
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25 mph |
3.5 |
82 |
4.3 |
100 |
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30 mph |
0.4 |
9 |
0.0 |
0 |
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TOTAL |
4.3 |
100 |
4.3 |
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 22
intersections in Zone 16. 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 |
5 |
2 |
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Two-Way/One-Way Stop Sign Control |
2 |
20 |
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Yield Sign Control |
2 |
0 |
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No Intersection Traffic Control |
13 |
0 |
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TOTAL |
22 |
22 |
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Zone 16 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, the Engineering Division has divided the Village into 18 “traffic
zones”. This is the study of Zone 16.
Zone 16 is bounded by Golf Road to the north, Busse Road to the east, Algonquin
Road and Dempster Street to the south, and the western Village limits. The
neighborhood has approximately 4.3 miles of streets under the Village’s
jurisdiction and contains John Jay Elementary 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 16. 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 Division’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 |
0.4 |
9 |
0.0 |
0 |
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25 mph |
3.5 |
82 |
4.3 |
100 |
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30 mph |
0.4 |
9 |
0.0 |
0 |
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The Engineering Division also evaluated the one school within the neighborhood,
John Jay Elementary 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.
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John Jay Elementary School |
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Street |
From |
To |
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Pheasant Trail |
150’ west of Tamarack Dr |
Lavergne Drive |
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Tamarack Drive |
Pheasant Trail |
Magnolia Lane |
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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, the Engineering Division has divided the Village into 18 “traffic
zones”. This is the study of Zone 16.
Zone 16 is bounded by Golf Road to the north, Busse Road to the east, Algonquin
Road and Dempster Street to the south, and the western Village limits. The
neighborhood has 22 intersections under the Village’s jurisdiction and contains
John Jay Elementary 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 16.
To assist in the evaluation process, a few guidelines have been established by
the Village:
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Intersections will be reviewed on both an individual basis and
neighborhood wide basis
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Only Stop signs will be considered as a form of traffic control, not
Yield signs
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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 |
5 |
2 |
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Two-Way/One-Way Stop Sign
Control |
2 |
20 |
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Yield Sign Control |
2 |
0 |
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No Intersection Traffic
Control |
13 |
0 |
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Traffic control at 4 intersections are recommended to have no change while
modifications at 18 intersections are recommended as follows:
- Thirteen (13) intersections that currently have no traffic control are
recommended to have Stop signs on one street (add Stop signs)
- Two (2) intersections that currently have Yield signs on one street are
recommended to have Stop signs on one street (add Stop signs)
- Three (3) intersections that currently have Stop signs in all directions
are recommended to have Stop signs on one street only (remove Stop signs)
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Open House
Before formally presenting the
recommendations to the Village Board of Trustees for approval, residents in the
neighborhood will be invited to an Open House. This Open House will be an
opportunity for residents to review the recommendations with Staff and ask
questions in an informal setting. The Open House will be held in the
Multipurpose Room at Holmes Junior High School (see map below) on Monday,
February 25th. Come anytime between 6:00pm & 7:30pm. Those
residents living within Zone 16 have been mailed a brochure detailing the
programs and inviting them to the Open House.

The Village encourages residents
to attend the Open House and provide us feedback before any final decisions are
made. After review of the public comments, the final recommendations for both
programs are scheduled to be presented to the Village Board of Trustees for
approval at the April 15, 2008 Village Board Meeting.
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Resident
Brochure |
Tentative Study Schedule
February 25, 2008
Open House at Holmes Junior High School
April 15, 2008
Recommendations formally presented at Village Board Meeting
April – May 2008
Prepare plans and coordinate work with contractor to install/remove signs
June 2008
Install/remove signs as approved by the Village Board of Trustees
December 2008
Village performs first post study
June 2009
Village performs second post study
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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 |