Notes
Slide Show
Outline
1
Cooperative Intersection Collision Avoidance Systems
Initiative
May 2005, ITS America Annual Meeting
  • Mike Schagrin
  • ITS Joint Program Office
  • U.S. Department of Transportation
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Why The Concern About Intersections
  • In 2003, approximately:
    • 9500 FATALITIES
    • 1,300,000 INJURIES
    • 2,600,000 CRASHES
  • Cost to society à $100 Billion






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Intersection Problem Areas Being Addressed
  • Stop sign and signal violations
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Accident Causal Factors
  • Impaired drivers
  • Aggressive drivers
  • Inexperienced / Elderly drivers
  • Obstructed vision (limited sight lines)
  • Other (Presence of peds, bicyclers, poor weather, etc.)
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Range Of Possible Countermeasures
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CICAS Program Goals
  • To develop and demonstrate cooperative intersection collision avoidance systems
  • To assess the value and acceptance of cooperative collision avoidance systems
  • To develop and provide tools to support industry deployments
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CICAS Partners
Public / Private/Academia
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Progression of CICAS Applications
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Cooperative Violation Countermeasure Concepts
  • The basic capability is for the vehicle to provide stop sign and traffic signal violation warnings
  • The intersection could provide an infrastructure based countermeasure (e.g., adjust signal timing) resulting from the vehicle sending a warning notification
  • The vehicle could exert some type of vehicular control countermeasure
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Cooperative Violation Countermeasure Scenario
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Cooperative Violation Countermeasure Scenario
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Areas of R&D for Violation Countermeasures
  • Wireless Communication (DSRC)


  • Human Factors
    • DVI



  • Traffic Control Interface


  • Threat Assessment




  • Positioning Enhancement
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Gap Assist Countermeasure Concept
  • Gap assist builds upon the violation concepts and technologies and adds stop sign and left turn gap assistance
  • Countermeasures include both in-vehicle and infrastructure-based warnings
  • Vulnerable road users such as pedestrians and bicyclists are addressed
  • Additional vehicle control capabilities will also be investigated
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Gap Assist Countermeasure Scenario
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Dynamic Mapping Example
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Gap Assist Countermeasure Scenario
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Areas of R&D for Gap Assist Countermeasures
  • Wireless Comm. (DSRC)


  • Human Factors
    • DVI



  • Traffic Control Interface


  • Threat Assessment




  • Positioning Enhancement
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Vehicle-to-Vehicle Communications Research
  • Research effort, specifically examining the creation of a dynamic intersection mapping capability by vehicle to vehicle communications
  • Implementation of such a system would require significant DSRC market penetration and therefore is not envisioned as a near term deployment option
  • Such a system could extend capability to both uninstrumented intersections and other non-intersection applications
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CICAS Roadmap