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Cooperative Intersection Collision Avoidance Systems Initiative May 2005, ITS America Annual Meeting. Mike Schagrin ITS Joint Program Office U.S. Department of Transportation. Why The Concern About Intersections. In 2003, approximately: 9500 FATALITIES 1,300,000 INJURIES

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cooperative intersection collision avoidance systems initiative may 2005 its america annual meeting

Cooperative Intersection Collision Avoidance SystemsInitiativeMay 2005, ITS America Annual Meeting

Mike Schagrin

ITS Joint Program Office

U.S. Department of Transportation

why the concern about intersections
Why The Concern About Intersections
  • In 2003, approximately:
    • 9500 FATALITIES
    • 1,300,000 INJURIES
    • 2,600,000 CRASHES
  • Cost to society  $100 Billion
intersection problem areas being addressed
Intersection Problem Areas Being Addressed
  • Gap assistance
  • Stop sign and signal violations
  • Left turn across path of on-coming traffic
  • Stop sign movement assist
accident causal factors
Accident Causal Factors
  • Impaired drivers
  • Aggressive drivers
  • Inexperienced / Elderly drivers
  • Obstructed vision (limited sight lines)
  • Other (Presence of peds, bicyclers, poor weather, etc.)
range of possible countermeasures

Warn the Driver

Modify Signal Timing

Partial Vehicle Control

Full Vehicle Control

Range Of Possible Countermeasures
cicas program goals
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
cicas partners public private academia

DAIMLERCHRYSLER

DaimlerChrysler Research and Technology North America, Inc.

CICAS PartnersPublic / Private/Academia
progression of cicas applications

Vehicle-To-Vehicle Communications Countermeasure

  • High DSRC market penetration
  • Minimal infrastructure
  • Violation and Gap applications

Gap Assist Countermeasure

Warning of crashes in the intersection box due to distance misjudgments

Traffic Signal/Stop Sign Countermeasure

Warning of a potential violation and crash

Progression of CICAS Applications

Complexity, Comprehensiveness

Time

cooperative violation countermeasure concepts
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
cooperative violation countermeasure scenario

Geometric Map

  • Signal Controller Info
  • Differential Correction
  • Road Surface Conditions

Current phase

Time to phase change

Roadside Unit

Vehicle System

  • DSRC
  • Processor
  • DGPS
  • Intersection Map
  • DSRC
  • Safety Processor
  • GPS
  • Vehicle Sensors

Infrastructure to Vehicle

Cooperative Violation Countermeasure Scenario
  • Driver Vehicle Interface (DVI)
  • Driver Vehicle Interface (DVI)
  • Driver Vehicle Interface (DVI)
cooperative violation countermeasure scenario1

Geometric Map

  • Signal Controller Info
  • Differential Correction
  • Road Surface Conditions

Signal timing adjustments

Roadside Unit

Vehicle System

  • DSRC
  • Processor
  • DGPS
  • Intersection Map
  • DSRC
  • Safety Processor
  • GPS
  • Vehicle Sensors
  • Driver Vehicle Interface (DVI)

Infrastructure to Vehicle

Vehicle to Infrastructure

  • Alert issued
  • Dynamic Info
Cooperative Violation Countermeasure Scenario

Current phase

Time to phase change

areas of r d for violation countermeasures
Areas of R&D for Violation Countermeasures

Violation Countermeasures

  • Wireless Communication (DSRC)
  • Human Factors
    • DVI
  • Traffic Control Interface
  • Threat Assessment
  • Positioning Enhancement
gap assist countermeasure concept
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
gap assist countermeasure scenario

Dynamic Intersection Mapping

  • Geometric Map
  • Signal Controller Info

Roadside Unit

Vehicle System

  • DSRC
  • Processor
  • DGPS
  • Intersection Map
  • DSRC
  • Safety Processor
  • GPS
  • Vehicle Sensors
  • DVI

Vehicle to Infrastructure

  • Alert issued
  • Dynamic Info

Intersection Sensors

Gap Assist Countermeasure Scenario
  • Dynamic Objects
  • Geometric Map
  • Signal Controller Info
  • Differential Correction
  • Road Surface Conditions

Infrastructure to Vehicle

  • Sensor Fusion
gap assist countermeasure scenario1

Dynamic Intersection Mapping

  • Geometric Map
  • Signal Controller Info

Roadside Unit

Vehicle System

  • DSRC
  • Processor
  • DGPS
  • Intersection Map
  • DSRC
  • Safety Processor
  • GPS
  • Vehicle Sensors
  • DVI

Vehicle to Infrastructure

  • Alert issued
  • Dynamic Info
Gap Assist Countermeasure Scenario
  • Dynamic Objects
  • Geometric Map
  • Signal Controller Info
  • Differential Correction
  • Road Surface Conditions

Infrastructure to Vehicle

  • Sensor Fusion
  • DVI (gap assist)

Intersection Sensors

areas of r d for gap assist countermeasures
Areas of R&D for Gap Assist Countermeasures

Violation Countermeasures

Gap Assist Countermeasures

  • Wireless Comm. (DSRC)
  • Human Factors
    • DVI
  • Traffic Control Interface
  • Threat Assessment
  • Positioning Enhancement
  • refinement
  • Human Factors
    • DVI (gap), DII
    • Conflict resolution
  • Not Applicable
  • Threat Assessment (gap)
    • Sensor/data fusion
    • Dynamic Intersection Mapping
  • refinement
vehicle to vehicle communications research
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
cicas roadmap

Real World Testing

Real World Testing (DII)

Real World Testing (DVI)

Concept of Operations

Gap Demo (DII)

Gap Demo (DVI)

2 Years

7/04

3/05

11/05

7/06

3/07

11/07

7/08

3/09

11/09

2 Years

CICAS Roadmap

Preparatory Analyses

Prototyping (Violation)

Prototyping (Gap)

DVI

Independent Evaluation

Violation Demo (DVI)

DVI – Driver Vehicle Interface

DII – Driver Infrastructure Interface