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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.

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Presentation on theme: "Cooperative Intersection Collision Avoidance Systems Initiative May 2005, ITS America Annual Meeting Mike Schagrin ITS Joint Program Office U.S. Department."— Presentation transcript:

1 Cooperative Intersection Collision Avoidance Systems Initiative May 2005, ITS America Annual Meeting Mike Schagrin ITS Joint Program Office U.S. Department of Transportation

2 Why The Concern About Intersections In 2003, approximately: –9500 FATALITIES –1,300,000 INJURIES –2,600,000 CRASHES Cost to society  $100 Billion

3 Intersection Problem Areas Being Addressed Stop sign and signal violations  Left turn across path of on-coming traffic  Stop sign movement assist Gap assistance

4 Accident Causal Factors  Impaired drivers  Aggressive drivers  Inexperienced / Elderly drivers  Obstructed vision (limited sight lines)  Other (Presence of peds, bicyclers, poor weather, etc.)

5 Range Of Possible Countermeasures Warn the Driver Modify Signal TimingPartial Vehicle ControlFull Vehicle Control

6 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

7 CICAS Program Objectives Establish a strong foundation for program development and execution Develop system designs for prototyping in partnership with industry and public agencies Develop and evaluate prototype systems Demonstrate and quantify effectiveness of intersection collision avoidance systems Generate industry support for deployment

8 CICAS Partners Public / Private/Academia D AIMLER C HRYSLER DaimlerChrysler Research and Technology North America, Inc.

9 Progression of CICAS Applications Time Complexity, Comprehensiveness Gap Assist Countermeasure Warning of crashes in the intersection box due to distance misjudgments Vehicle-To-Vehicle Communications Countermeasure  High DSRC market penetration  Minimal infrastructure  Violation and Gap applications Traffic Signal/Stop Sign Countermeasure Warning of a potential violation and crash

10 CICAS Concepts

11 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

12 Cooperative Violation Countermeasure Scenario Vehicle System DSRC Safety Processor GPS Vehicle Sensors Roadside Unit DSRC Processor DGPS Intersection Map Infrastructure to Vehicle  Geometric Map  Signal Controller Info  Differential Correction  Road Surface Conditions Driver Vehicle Interface (DVI) Current phase Time to phase change

13 Signal Violation Warning: Vehicle Approaching Example Scenario

14 Current phase Time to phase change Cooperative Violation Countermeasure Scenario Vehicle System DSRC Safety Processor GPS Vehicle Sensors Driver Vehicle Interface (DVI) Roadside Unit DSRC Processor DGPS Intersection Map Vehicle to Infrastructure  Alert issued  Dynamic Info Infrastructure to Vehicle  Geometric Map  Signal Controller Info  Differential Correction  Road Surface Conditions Signal timing adjustments

15 Areas of R&D for Violation Countermeasures Wireless Communication (DSRC) Human Factors –DVI Traffic Control Interface Threat Assessment Positioning Enhancement Violation Countermeasures

16 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

17 Gap Assist Countermeasure Scenario Vehicle to Infrastructure  Alert issued  Dynamic Info Infrastructure to Vehicle  Geometric Map  Signal Controller Info  Differential Correction  Road Surface Conditions Intersection Sensors Roadside Unit DSRC Processor DGPS Intersection Map  Dynamic Objects Vehicle System DSRC Safety Processor GPS Vehicle Sensors DVI  Geometric Map  Signal Controller Info Dynamic Intersection Mapping Sensor Fusion

18 Dynamic Mapping Example Vehicle id (can be arbitrary) 123…M Distance from intersection in m 159540…97 Lane 123…10 Speed in mph or m/s 353745…40

19 Gap Assist Countermeasure Scenario Vehicle to Infrastructure  Alert issued  Dynamic Info Infrastructure to Vehicle  Geometric Map  Signal Controller Info  Differential Correction  Road Surface Conditions Intersection Sensors Roadside Unit DSRC Processor DGPS Intersection Map  Dynamic Objects Vehicle System DSRC Safety Processor GPS Vehicle Sensors DVI  Geometric Map  Signal Controller Info Dynamic Intersection Mapping DVI (gap assist) Sensor Fusion

20 Areas of R&D for 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 Violation CountermeasuresGap Assist Countermeasures

21 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

22 CICAS Roadmap 7/043/0511/057/063/0711/077/083/0911/09 2 Years Concept of Operations Gap Demo (DVI) Prototyping (Violation) DVI Prototyping (Gap) Violation Demo (DVI) DVI – Driver Vehicle Interface Gap Demo (DII) DII – Driver Infrastructure Interface Preparatory Analyses Independent Evaluation Real World Testing (DVI) Real World Testing (DII) Real World Testing 2 Years


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