Integrated Corridor Management (ICM)

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Integrated Corridor Management (ICM)

• Brian P. Cronin, P.E.

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What is ICM?

• ICM is a promising tool in the congestion
  management toolbox that combines advanced
  technologies and innovative practices.
• ICM is the proactive, joint, multimodal
  management of transportation infrastructure
  assets along a corridor by transportation system
  operators and managers.
• ICM seeks to optimize the use of existing
  infrastructure assets, making transportation
  investments go farther.
• With ICM, the corridor is managed as a
  systemrather than the more traditional approach
  of managing individual assets.

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Example ICM Corridor
Local Jurisdiction 1 Traffic Signal System
Regional Rail Agency Train Management System
State DOT Freeway Management System
Bus Company AVL System
Local Jurisdiction 2 Traffic Signal System
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ICM System
Arterial Signal Systems
Freeway Systems
Bus Systems
Rail Systems
An ICMS is the set of procedures, processes, and
information systems that support transportation
system managers in making coordinated decisions
involving the optimal performance of all
transportation networks in a corridor.
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ICMS Context
ICM is about management of a corridor.
Management implies more than monitoring.
Management implies planning for, and responding
to what is happening.

• Operational Objectives Provide the Tools To
• Optimize performance at a corridor level
• Improve utilization of existing infrastructure
• Reduce travel delays
• Achieve load balancing across the networks
• Facilitate mode shifts
• Facilitate route shifts
• Facilitate departure/arrival shifts
• Respond to events with coordinated multi-agency
  actions

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High-Level ICM Program Plan
FY 04
FY 05
FY 06
FY 07
FY 08
FY 09
FY 11
FY 10
Stakeholder Working Group
Phase 1Foundational Research
Phase 2 Corridor Tools, Strategies Integration
Phase 3 Stage 1 - ICM Pioneer Site Concept of
Operations and Requirements
Phase 3 Stage 2 -Analysis, Modeling Simulation
of Selected Pioneer Sites
Phase 3Stage 3 - Pioneer Demonstration Projects
Site Applications Feasibility
Site Development Feasibility
Development Feasibility
Phase 4 ICM Operations Concept Knowledge and
Technology Transfer
Standards Completion and Deployment
September 2005
March 2008
July 2009
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Eight USDOT ICM Pioneer Sites

• 3 Stages for the Pioneer Sites
• Stage 1 Concept of Operations, Sample Data, and
  Requirements
• Stage 2 Analysis, Modeling, and Simulation
• Stage 3 Demonstration and Evaluation

Seattle
Minneapolis
Montgomery County
Oakland San Diego
Dallas San Antonio Houston
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ICM Pioneer Site Corridor Assets
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A Systems Engineering Approach
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ICM AMS Focus Integrated Performance Measures
Improved Corridor Management
Short-term prediction
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Data Needs Analysis

• ICMS introduces needs that were not present when
  we were only dealing with one network at a time.
• Data collection needs time stamps so data from
  different sources can be aligned
• Data granularity is different for ICMS (we need
  finer spatial and temporal detail)
• Data latencies that were acceptable for reporting
  will not work for operational modeling and
  control
• Decisions about how to respond to current
  situations should not be based on data that is
  days or weeks old.
• Observational data needs to be collected often
  enough to represent the current situation.
• Observational data needs to be available quick
  enough to facilitate a useful response
• Challenges Data sharing limitations
  proprietary data, agency policies, incompatible
  data systems

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ICM Data Requirements

• Transit Networks - We need data that represents
  the current situation
• Vehicle location and speed every 30-120 seconds
• Vehicle passenger count every pull-out
• Arterial Networks We need data that represents
  what is happening at the lane level
• Vehicle volumes, by approach lane, collected
  every 1-5 seconds reported every 30-300 seconds
• Signal phase data, by approach lane, collected
  every 1-5 seconds reported every 30-300 seconds
• Link volumes and average speeds every 30-300
  seconds

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Corridor Performance Measures

• Travel time
• Travel delay time and predictability
• Incident duration and frequency
• Fuel consumption and pollution reduction
• Corridor capacity utilization (vehicle traveler
  throughput)

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Sample ICMS Concept
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Multi-level Analysis Tools Provide Comprehensive
Insight
Regional patterns and mode shift Transit
analysis capability
Traveler information, HOT lanes, congestion
pricing and regional diversion patterns

• Traffic control strategies such as ramp metering
  and arterial traffic signal control

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Test Corridor Analysis Provides Preliminary
Insights and Enabled Modeling of Discrete
Strategies
Macro-Level
Meso-Level
Micro-Level
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Test Corridor Analysis Provides Preliminary
Insights and Enabled Modeling of Discrete
Strategies
ICM Strategy Description Models Used to Test
Zero ITS Baseline Conventional transportation infrastructure without Intelligent Transportation Systems (advanced traveler information systems, ramp metering, signal coordination, TMCs, etc.) All
Highway Traveler Information Pre-trip and en-route traveler information at 20 market penetration Variable Message Signs DynaSmart-P (DSP)
Transit Traveler Information Impact of incident information on mode shift Travel demand model DynaSmart-P Pivot-point mode choice model
HOT Lane Conversion of existing HOV lane to HOT lane DynaSmart-P Pivot-point mode choice model
Ramp Metering Local adaptive ramp metering (Not corridor-adaptive ramp metering) DynaSmart-P
Arterial Signal Coordination 157 traffic signals were optimized for medium demand/no incident Synchro DSP
Combination The above five ICM strategies combined All
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Test Corridor AMSOverall ICM Benefit under
Different Operational Conditions
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Summary of Benefits vs. CostMedium Demand with
Major Incident
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Summary of Benefits vs. CostHigh Demand with
Major Incident
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Test Corridor AMSOverall ICM Benefit under
Different Operational Conditions
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Three AMS Sites
San Diego, CA
Dallas, TX
Minneapolis, MN

• Busy commuter corridor
• Limited expansion capacity
• Major construction planned

• Major employers
• No ability to expand
• Surrounding construction planned

• Popular freight, tourist and commuter corridor
• Lengthening peak travel periods

ICM Strategies

• Integrated management
• Coordinated incident management
• Multi-agency data exchange
• Managed lanes
• Transit signal priority
• Signal timing

• Integrated management
• Coordinated incident management
• Integrated operational systems
• Increased park and ride capacity
• HOV

• Integrated management
• Coordinated incident management
• Dynamic ramp metering
• Reversible HOT lanes
• Increased transit ridership
• Congestion avoidance rewards

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San Diego, California
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Dallas, Texas
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Minneapolis, Minnesota
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ICM KTT Mission

• Equip corridor managers and operators across the
  country to implement and use ICM.

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Searchable/Browseable ICM Knowledgebase

• Resources Available Now in the ICM Knowledgebase
• Pioneer site CONOPs and Requirements Documents
• AMS Resources and Findings
• Technical Integration/Data Gap Technical
  Resources
• Lessons-Learned from ICM Pioneer Sites
• KTT Resources Coming Soon
• Pioneer Site Webinars and peer exchanges
• New fact sheets
• Resource guidance documents

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Next Steps

• Complete Analysis, Modeling and Simulation
  results from Three Pioneer Sites
• Select demonstration sites October
• Conduct demonstration and evaluation
• Operational in 18 months
• Evaluation for 18 months

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Questions? www.its.dot.gov/icms/index.htm

• Brian Cronin, RITA brian.cronin_at_dot.gov202-366-88
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• Steve Mortensen, FTAsteven.mortensen_at_dot.gov202-
  493-0459
• Dale Thompson, FHWA dale.thompson_at_dot.gov202-493-
  3420
• Bob Sheehan, FHWArobert.sheehan_at_dot.gov

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