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Background
• Lake County– 24 x 20 mi area– Population 690,000– 52 municipalities
• Congestion– No freeways– Limited 4-lane arterials– Transportation controversies
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PASSAGE Goals:
Countywide
1. Improved signal system coordination
2. Enhanced real time traffic monitoring
3. Improved incident/event management
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Benefits
Time savings to motorists from…
1. Improved signal system coordination…“Get more greens”
2. Better real time traffic monitoring…“Drivers have better information”
3. Improved event management…“Someone takes corrective action”
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Institutional Arrangements
Measured by number of signals:
435 IDOT
144 County
82 Municipal (12 of 52)
661 signals total
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Institutional Arrangements
Existing and proposed signals:• LDOT
– Econolite 144
• IDOT– Econolite 186– Eagle 96– Unknown or Proposed 153
• Local Municipalities– Econolite 51– Eagle 15 – Other 16
661 signals total
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FundingPhase 1A cost = $6.3 million
– 42% federal ITS earmarks– 16% special federal earmark– 42% county local match
In-kind state assistance– IDOT– ISTHA– GCM Corridor
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What is in Lake County PASSAGE?
i.e. What Intelligent Transportation System Technologies are being used?
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ITS Technologies
1 Fiber optic network
2 Connect traffic signals
3 Install TSS
4 Initiate HAR
5 CAD
6 Video camera
7 GCM link
8 DMS
9 ATMS
10 Event management
11 Congestion management
12 Traveler info
13 Maintenance management
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1. Fiber Optic NetworkStart fiber backbone network (79 miles)
– Gigabit Ethernet– Mesh topology
• Redundant paths
• Fault tolerant
– Fill in existing gaps (14 mi new)
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2. Traffic Signals in Phase 1A
• On the backbone: 95 IDOT 44 County 6 Municipal
145 Total
• Others remain dedicated or dialup
• Normal project network expansion
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4. Initiate Highway Advisory Radio
• 3 sites to start• I-94 focus
(at interchanges)
• Synchronized• Automated message
generation• Text-to-speech
conversion• HAR signs- 1620 AM
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5. Initial CAD interface
• Sheriff Computer Aided Dispatch system– 911 cellular calls
• Filters applied
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6. Expanded Video Camera Use
• Incorporating 27 PTZs on backbone
• Adding 5 new PTZs • Others remain dialup• Normal project video
expansion
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7. Initiate Dynamic Message Signs
• 3-Portable, side road mounted
• Use for some incidents
• Automated message generation
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8. Initial GCM link
Gary-Chicago-Milwaukee Gateway
– Regional link
– Via IDOT fibers along Tollway
– IDOT Offices
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9. Advanced Transportation Management System
• ATMS = central software brains• Makes everything work together
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– Integrated congestion management
– Operator interface
– GIS integration
– Failure management
– Maintenance management
– Signal internal paging (staff)
– Integrated incident management
– Web page broadcast• Arterials + Tollway
9. ATMS
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Map-based Operations• Monitor real-time traffic
conditions from the map
• Light, medium, heavy or alarm heavy traffic
• Display traffic signal system and ITS devices with active status
• Dynamic layering
• Click on icon to control field devices
9. ATMS
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10. Event Management
• Incidents
• Planned lane closures
• Unplanned lane closures
• Special events
• Weather events
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11. Congestion Management
• Real-time– Signal timing changes
– Real-time traveler information (DMS and HAR)
• Advanced congestion management– Support for timing optimization
• Data collection and interface to Synchro capacity software
– Support capacity analysis
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13. Maintenance Management
• View and log signal system failures• View and log ITS device failures• Provide logging of maintenance activities
– Track open maintenance items
• Page maintenance personnel
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12. Traveler Information
• Provide for real-time web map display
• Include incidents and planned events
• Provide interface to the GCM gateway– Traffic data– Event details– Eventually signal
coordination
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ITS Technologies
• All housed in Traffic Management Center (TMC) in Libertyville:– Building addition
• One story, 4400 sq ft
• Houses traffic section
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TMC Staffing
Phase 1A – 2 TMC operators – 5:30 am – 8:00 pm coverage– Hands on peak periods Monday thru Friday
• Actively monitor traffic conditions and status– 6:30 - 9:00 am
– 3:00 - 6:30 pm
– IDOT Office Space
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ITS Technologies
Caveats• Phase 1A still under development-
80% paid out– Phase 1A coverage
• Not the whole county• Not equivalent coverage areas
• Other Phases to follow
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Thanks to…
• County Engineer– Martin Buehler P.E.
• Consultant– NET… Joseph Brahm, P.E.
• IDOT
• ISTHA
• Federal Reps and FHWA
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The Name…
Lake County PASSAGE
• Program for Arterial Signal Synchronization and TrAvel GuidancE
• Implementation Phasing Plan (IPP) completed
• Phase 1A underway
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Lake County Board Strategic Plan
“Enhance the development and expansion of an efficient and effective transportation system…”
…….Also a Federal initiative
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Consequences of No Action
Loss of opportunity to provide yearly time benefits to motorists through:– Improved signal system coordination: $12.3million/year
– Better real time traffic monitoring: $ 4.7million/year
– Improved event management: $ + million/year
$17 million/year
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1. Fiber Optic Network
Phase 1 (A&B) Deployment
• $1 million investment in fiber infrastructure
• $1 million investment in electronics
• Mesh topology – 4 redundant paths and spurs
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10. Event Management
ATMS will support three methods of generating a response plan:
1. System-generated
2. Select from a plan library
3. User-generated
ATMS ATMS
Response Response
Plan Plan
Freeway
CMS
Operator
Actions
HAR
(notepad) HAR Operator
Actions
DMS
Event Details
Freeway
CMS
ATIS
Advisories Traffic Signal