Notes
Slide Show
Outline
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 Applications and Data Environments Breakout
Group II: Freeway Data Environment
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Today’s Exercise
(Part 1) Scorecards
  • Feedback materials provided in the breakout rooms
    • Application scorecards
    • 3 poker chips (for voting)
  • Facilitators will brief assumptions about the data environment that applications can draw upon
  • Facilitators will clarify application evaluation criteria
  • Consider a set of (up to 12) IntelliDrive application concepts
    • Facilitators provide one slide that describes the application
    • Field questions and clarifying discussion
    • Individually, you rate the application (HIGH, MEDIUM, LOW) against the criteria on your scorecard

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Today’s Exercise
(Part 2) Voting
  • Once you have scored each application, each participant votes for the three most promising applications
    • “Most promising”: strong potential for transformative impact, low deployment risk, and clear alignment with IntelliDrive program goals
    • BLUE = 3 points (top priority)
    • RED = 2 points (second-highest priority)
    • WHITE = 1 point (third-highest priority)
    • Deposit your chips in the voting bins identified for each application
      (also turn in your scorecards)
  • Quick break (5 minutes) to tabulate the results
  • Reconvene to consider results within each breakout
    • Discuss the implications of your group process
    • Identify a presenter from your group for the breakout report at 3 PM
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Exercise Ground Rules
  • For today’s exercise, these items can’t be changed
    • Evaluation criteria
    • Data Environment assumptions
    • Application concepts (no altering or adding new ones)
  • Policy-related issues are NOT in play for discussion
    • Intellectual Property, Privacy, Access/Security, Meta-data, Quality, Aggregation, Standards, Financial/Business Models….
    • If these topics come up, we will park the discussion until tomorrow, when we have special session to deal with these in turn
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Freeway Data Environment Description
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Freeway Data
Environment Assumptions
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Vehicle and Traveler
 Data Source Assumptions
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Infrastructure
 Data Source Assumptions
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Application Evaluation Criteria
  • Next, we’re going to go through application concepts that utilize data from the freeway data environment
  • We will present each concept on a single slide
    • You can ask clarifying questions, or offer suggestions about how data might be leveraged
    • But the concept itself cannot be altered, modified or enhanced in discussion
    • Please record notes or comments on each concept on your scorecard
  • You rate each application on three criteria (High, Medium, Low)
    • Potential Impact: will this application have transformative impact?
    • Deployment Readiness: if we assume the data is available, can this application be developed, tested and widely deployed by 2025?
    • Program Alignment: does the application align with program objectives and is there a clear federal role in its development and deployment?
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Application #1:
SPD-HARM
  • Dynamic Speed Harmonization
  • Problem Addressed:
    • Improve throughput and reduce risk of collision by optimizing for lane-specific speed limits on a freeway facility
  • Description
    • Monitor traffic and weather data captured from multiple sources, and calculate a target speed for vehicles
    • Target speeds may be advisory or enforced, and may vary by location, e.g., distance upstream of a recurrent bottleneck, and by lane
    • Communicate target speeds through overhead dynamic signage, via DSRC to enabled vehicles with range (I2V) and from vehicle to vehicle (V2V)


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Application #2:
CACC
  • Cooperative adaptive cruise control
  • Problem Addressed:
    • Significantly improve throughput by increasing capacity and efficiency, and increase safety by minimizing the number of interactions between vehicles
  • Description
    • A traffic manager sets a gap policy to form or break-up platoons of vehicles
    • Speeds are automatically adjusted by the vehicle based on communications from the traffic management center
    • Ad hoc or managed platoons of vehicles moving on the facility
    • Management of gaps, flows and arrival rates
    • Systematically accounts for differing vehicle weight and performance


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Application #3:
Q-WARN
  • Queue Warning
  • Problem Addressed:
    • Warn motorists of existing or imminent downstream queues or shockwaves to increase safety by reducing rear-end collisions (and resulting congestion)
  • Description
    • Monitor traffic data to check for presence of a stopped or slow moving queue
    • Predict queue formation and shockwave propagation
    • Alert motorists to reduce speeds thereby avoiding abrupt stops
    • Possibly implemented in conjunction with speed harmonization to provide target speeds by lane in approach to congested area



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Application #4:
ATIS
  • Multi-modal Real-Time Traveler Information
  • Problem Addressed:
    • Improve precision and accuracy traveler information with respect to travel times, cost, or availability on alternate routes or modes
  • Description
    • Considers real-time and historical travel conditions for the traveler’s trip (pre-specified origin, destination, and time of departure)
    • Suggests potential routes and modes (e.g., HOV, general purpose, tolled lanes) with travel times, travel time reliability, and costs for each alternative
    • Predicts travel times based on existing and expected traffic patterns, weather conditions, incident locations, and work zone locations and timings


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Application #5:
ETC
  • Electronic Toll Collection System
  • Problem Addressed:
    • Increase interoperability among ETC devices for vehicle-to-roadside communication using 5.9 GHz bandwidth
  • Description
    • Current 915 MHz ETC systems rely on proprietary vehicle-to-roadside communications, limiting interoperability
    • Enable toll authority to accept electronic payments from vehicles equipped with electronic-payment services (EPS), regardless of EPS account ownership
    • Presents payment instructions to the driver, receives driver input, send payment authorization and display toll payment status to the driver
    • Could be implemented in conjunction with managed or HOT lane concepts


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Application #6:
INC-ZONE
  • Incident Scene Work Zone Alerts for Drivers and Workers
  • Problem Addressed:
    • Public safety work zones (e.g., incidents, traffic stops) are dynamic and confusing for drivers -- and are high risk areas for vehicle-worker collisions
  • Description
    • Warns drivers of lane closings and unsafe speeds for the temporary work zones that surround any traffic incident or law enforcement traffic stop
    • In-vehicle messaging would also provide merging and speed guidance
    • Warn on-scene workers of vehicles with trajectories or speeds that pose high risk to their safety


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Application #7:
RAMP
  • IntelliDrive-Driven Ramp Metering System
  • Problem Addressed:
    • Improve current ramp metering systems capability to respond to changing traffic conditions in real time
  • Description
    • Leverage new mobile source data to calculate optimal ramp metering rates resulting in improved throughput and reduced emissions
    • Broadcast timing information (analogous to SPaT data) allowing vehicles to decelerate or accelerate
    • Integrate with HOV bypass, arterial signal coordination and dynamic speed harmonization applications deployed in same interchange


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Application #8:
WX-MDSS
  • Enhanced MDSS Communications
  • Problem Addressed:
    • Reduce reliance on (potentially expensive) commercial wireless networks to communicate with snowplows or other maintenance vehicles
  • Description
    • MDSS equipped maintenance vehicles utilize DSRC hot spots to download treatment recommendations and upload recent maintenance activities
    • In many rural areas access to commercial networks is limited and/or expensive
    • Utilize DSRC hot spots to reduce costs and improve communications latency for state DOTs


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Breakout Exercise
(Part 2) Voting
  • Now that we’ve worked through all the applications,
    vote for the three most promising applications
    • “Most promising”: strong potential for transformative impact, low deployment risk, and clear alignment with IntelliDrive program goals
    • BLUE = 3 points (top priority)
    • RED = 2 points (second-highest priority)
    • WHITE = 1 point (third-highest priority)
    • Deposit your chips in the voting bins identified for each application
      (also turn in your scorecards)
  • We’ll take a quick break (5 minutes) to tabulate the results
  • One Bin, One Participant, One Chip rule
    • Do NOT dump all of your chips in a single bin
    • We want your individual priority of the top THREE applications
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Results Discussion
  • Were similar or dissimilar applications selected during voting?
  • Did the highest ranking applications align in the same quadrants of the impact/deployment readiness chart?
  • Regarding the top 6 applications:
    • Are they highly overlapping?  Or independent?
    • Do they require coordinated research?
    • Will they require coordinated deployment?


  • Who would like to volunteer to report out the breakout group findings?


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