I-90 Smart Corridor – Active Traffic Management

October 16, 2014

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I-90 Rebuilding and Widening Project Goals Improve mobility and reduce congestion

Deliver a 21st century, state-of-the-art corridor linking Rockford to O'Hare

Accommodate transit options for the first time in the agency's history

Feature flexible infrastructure to add new "smart" features as needed

Incorporate the latest technologies available to enhance roadway safety

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I-90 ITS Elements

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West Corridor 37 miles

East Corridor 25 miles

I-90 West Corridor

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West Corridor 37 miles

Weather station

HDTV camera, Traffic sensors and equipment shelter every

mile (34) Redundant IT, Power

Distribution/ITS/Leased Fiber (median and off shoulder)

DMS Type 1 (2) DMS Type 2 (8)

I-90 East Corridor

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West Corridor

East Corridor

I-90 East Corridor

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2016 Active Traffic Management Area

Potential Future Active Traffic Management Area

West Corridor

Smart Corridor

East Corridor

Smarter

What is Active Traffic Management (ATM)?

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High-tech gantries placed every half mile that provide real-time information to alert drivers to: • Nature and status of traffic incidents

ahead • Ability to drive in the shoulder lanes • Advisory speeds • Proposed alternate routes • Real-time lane closures and traffic

pattern changes

Helps facilitate the flow of cars to allow emergency vehicles to safely navigate the roadways and reach the incident scene more quickly

Stall ahead. Merge left and slow down

Who else is using ATM?

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Netherlands Germany

Europe: multiple locations since 1970

England

Seattle: I-5 and others completed in 2010

Minneapolis: I-35W completed in 2010 and I-94 completed in 2012 Planning stages: • Georgia • Oakland area: I-80 • Virginia: I-66 to be completed

in 2015

I-90 Corridor Planning Team

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Team recommends active traffic management (ATM)

on I-90 from Barrington Road to the Kennedy

Illinois State Police Tollway Maintenance and

Traffic Operations, Planning and Engineering

PACE Traffic Engineer CDM Smith I-90 Consultant Team

Participants Collaborative Process

How should Lane 0 operate on day 1?

Why Kennedy to Barrington?

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Congested areas

Why Kennedy to Barrington?

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Park & Ride Location

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How will we implement ATM?

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High-tech gantries - every half mile Lane Control Sign over every lane Use of Lane 0 for express bus DMS Type 2 every 4th gantry (2

miles) Lane 0 (inside shoulder) is

preferential lane Equipment shelter every mile Decision Sight Distance – 900’

Lane 0 x

How will we implement ATM?

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High-tech gantries - every half mile Lane Control Sign over every lane Use of Lane 0 for express bus DMS Type 2 every 4th gantry (2

miles) Lane 0 (inside shoulder) is

preferential lane Equipment shelter every mile Decision Sight Distance – 900’

Stall ahead. Merge left and slow down

Lane 0 x

Shoulder vs Preferential Lane

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Shoulder vs Preferential Lane

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Preferential Lane Shoulder

Travel only Emergency use

Reserves for future use Hard to “take away”

Buffer double line – full speed allowed

Single striped line – speed differential

What about State Police and Maintenance?

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Crash investigation sites

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10 crash investigation sites

Police “safe havens” in turn-arounds in median

Smart Corridor Elements

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Active Traffic Management: gantry, lane control signs and

DMS Type 2

Redundant IT fiber/connected

vehicle expansion

Equipment shelters

Power/ITS/Leased fiber conduits

RWIS CCTV MVDS

East and West Shelter Differences

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East West

25’ x 10’ 17’ 4” x 8’ 10” Low voltage power distribution Medium and Low Voltage Power

Distribution

UPS Battery rack for ITS equipment (30 min)

UPS for safe power down

400 amp service 200 amp service

Heavy duty surge suppressor No surge suppressor

Dynamic Message Signs (DMS)

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Lane Control Sign

DMS Type 2 (15C)

DMS Type 1 (21C)

DMS Type 2 (18C)

East

West East

East and

West

22’

29’

26’

8’

8’

8’

6’

5’

MVDS* - Microwave Vehicle Detection

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*MVDS - Microwave Vehicle Detection System NIDS – non-intrusive detection system

Criteria • non-intrusive to the pavement • highly accurate and reliable (volume and

speed) • mounted with little or no offset • ease of calibration and setup. • continuous data during construction • Low susceptibility to electromagnetic

interference. • Compatible with existing systems • Interchangeable

Cameras

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11 cameras evaluated – 3 stages 1st Stage: Paper Analysis vs 7 criteria 2nd Stage: TIMS Integration 3rd Stage: Hands-On Video Quality

Queue Detection

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Criteria • Signal at ramp terminal • Terminal to mainline

<2000’ or plaza to mainline is <1000’

• Local major traffic generator

• 2030 ramp is LOS E • Alignment does not

provide clear line of sight

Location Traffic Generator

Barrington Road

New park – n-ride; Hoffman businesses, etc.

Meacham Road

Schaumburg Convention Center

Lee Street O’Hare Airport and Cargo Facilities; Rosemont businesses

Remote Weather Information System (RWIS)

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RWIS • field data processing unit (RPU) • 30 ft lattice tower • air temperature/humidity sensor • precipitation / visibility sensor • subsurface temperature probe • approach (or departure) non-intrusive pavement sensor pair • bridge deck non-intrusive pavement sensor pair.

Kishwaukee Bridge

Fox River Bridge

Performance spec

Weigh-in-motion

Crash investigation sites

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Bending plate technology per Tollway current success

Performance spec

West vs East ITS Elements

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West Corridor (No ATM)

East Corridor (ATM)

DMS Type 1 2 4

DMS Type 2 8 20

Equipment Shelter 34 Every Mile

23 Every mile

Generators 8 23

Camera Spacing .65 - 1 mile 1100 – 1500 ft.

MVDS 1 mile Ramps and mainline

Gantries 0 (+12 future) 29 (+15 future)

Lane Control Signs 0 (+144 future) 351 (+180 future)

Concept of Operations

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Scenarios 1. Weather 2. Minor Incident 3. Traffic Enforcement 4. Major Incident 5. Full Closure 6. Congestion 7. Stationary Work Zone 8. Rolling Work Zone 9. Car Fire 10. Disabled Vehicle 11. Partial System Failure

Scenarios

Prior Storm Arrives

Ice/ Plowing

Cleared

Benefits

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ATM Enhances roadway safety: 11% percent – WashDOT

Facilitates transit: Tollway will manage PACE bus on shoulder

Improves mobility: 3 to 7 % increase throughput (Europe)

Enables demand management: speed harmonization

WIM: increased enforcement potential

Full camera coverage: Improved Incident Response and Management

Reduced monitoring patrols

Enhanced traffic monitoring, increased reliability of IT, queue management reduces mainline delays

QUESTIONS?

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