I. C. T. M.
Mn/DOT I-494 ICTM
Interstate Corridor Traffic Management Project

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Problem: Increasing congestion on heavily traveled I-494.
Solution: Integrated Corridor Traffic Management [ICTM].

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A synchronized approach to managing traffic that combines
advanced traffic control technology
and the teamwork of three cities, one county agency,
and the State of Minnesota.

Partners in Motion!

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The ICTM Project
is a MN/DOT - FHWA Operational Test utilizing an
Intelligent Transportation System Initiative
along a 7.9 mile segment of I-494.

This corridor connects residential suburbs with the
major commercial areas, including the Mall of America
and the Minneapolis-St. Paul International Airport.



The I-494 Test Corridor

ICTM (by using advanced technology systems),
is designed to reduce congestion through a combination
of traffic management strategies developed
through interjurisdictional cooperation and agreement.

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One of the major problems within the corridor
is the overuse of the freeway system. 
Drivers frequently use I-494 for short trips,
they must be encouraged to use the city streets available to them. 
This program involves construction of better parallel routes
both North and South of I-494 to encourage usage
for short trips, reducing freeway congestion.


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The project uses a centralized computer system
(SCATS) which manages through adaptive control.
The centralized system coordinates ramp meter access
and signal timing on north/south and east/west feeders
to better allow for free flowing traffic on I-494.

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Signal Controllers use real time information from loop detectors, radar,
in field units, and video imaging technology to adjust signal timing.
Multiple agencies cooperatively manage the traffic flow onto I-494

and throughout the corridor. 
SCATS synchronizes the timing of signalized intersections
and freeway entrance ramps.

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This project also includes a "trailblazing" component
where variable message signs will alert travelers of
back-ups on the freeway before entering ramp queues
and suggesting alternate routes or entrance ramps.

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Video Cameras along the corridor help detect incidents.
Radio and VMS traffic control signs alert drivers to problems
and provide alternate route information

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The ICTM project is built upon Mn/DOT's state of the art
Traffic Management Center [TMC].
The TMC provides the communication background and integration

of the freeways and arterial roadways for SCATS control.

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Evaluation Partners:

Participants in this study include various
State and Municipality government agencies,
the private sector, and academia.

Including:
Mn/DOT, FHWA, Hennepin County,
the City of Richfield, the City of Edina, and the City of Bloomington,     



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The Evaluation is currently halted until the Fourth Module -Trailblazing Signs
are installed, probably not until Summer 1999.


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* All Pictures and Paraphrased Text
from the Minnesota Guidestar ICTM Brouchure *


For More Information : Mn/DOT's ICTM Page
http://www.dot.state.mn.us/

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