IntelliDriveSM Update

AASHTO SCOHTS Annual MeetingMay 1, 2009

IntelliDrive is Connectivity

DOT’s IntelliDrive research program is focused on developing the information and communications systems technology backbone for a dramatically safer and more efficient future surface transportation system.

IntelliDrive Active Safety Applications

Vehicle-to-Vehicle (V2V)

Vehicle-to-Infrastructure (V2I)

IntelliDrive Active Safety Applications Issue Driver Alerts and Warnings

IntelliDrive safety applications are designed to increase drivers’ situational awareness and prevent crashes through Alerts and Warnings.

Warnings Vs Alerts•The main difference for drivers is the time horizon.•Alerts have a longer time horizon, and improve safety by increasing situational awareness.•Warnings inform the driver that immediate action is necessary.•Even last-second warnings can give drivers enough time to respond—e.g., to brake or steer around to avoid a crash.

DSRC: Communications Technology forIntelliDrive Active Safety Applications

•Active Safety requires instantaneous (extremely low-latency) communications technology.•Dedicated Short Range Communications (DSRC) is the only currently available technology that meets requirements of active safety applications.•DSRC is similar to WiFi, tailored to the environment of moving vehicles•When DSRC is combined with GPS, the result is a low-cost communication system that provides 360 degree situational awareness of all similarly equipped vehicles and infrastructure within range.

V2V – 6 Prototype Safety Applications

Emergency Brake Light Warning

Forward Collision Warning

Intersection Movement Assist

Blind Spot and Lane Change Warning

Do Not Pass Warning

Control Loss Warning

Emergency Brake Light Warning

Forward Collision Warning

Intersection Movement Assist

Additional V2V Safety Applications

• Do Not Pass Warning – System issues a warning to the driver who intends to pass slower moving vehicles ahead by moving into the passing zone of the adjacent lane, which is or will be occupied by another vehicle traveling in the opposite direction

•Blind Spot and Lane Change Warning – System issues various stages of warning to the driver of the host vehicle during a lane change attempt if the vehicle’s blind spot is, or will soon be, occupied by another vehicle traveling in the same direction

• Control Loss Warning – System issues a warning to the driver who is about to enter a zone where another driver has recently lost control of his vehicle.

V2I – 4 Prototype Safety Applications

Stop Sign and Signal Violation Warning

Stop Sign Assist

Signalized Left Turn Assist

Traffic Signal Adaptation

V2I –Safety ApplicationsTraffic Signal Violation Warning

Left Turn Warning

V2I –Safety Applications Stop Sign Assist

V2I –Safety Applications Left Turn Warning

V2I –Safety ApplicationsTraffic Signal Adaptation

Stop Sign Violation Warning

Human-Machine Interface is Critical

•IntelliDrive safety applications will be designed to decrease human error, which causes 81% of crashes.

• The current IntelliDrive research program is emphasizing the importance of developing effective Human Machine Interfaces (HMIs), which are critical to ensure:

•Effective crash prevention and mitigation•No unintended consequences

Increased driver workloadRisk compensation

•Consumer acceptance

Off RoadwayOff Roadway

Rear-EndRear-End

Crossing PathsCrossing Paths

25 %25 %

9 %9 %

28 %28 %

23 %23 %Lane ChangeLane Change

IntelliDrive Active Safety ApplicationsCan Prevent Most Crash Types

OthersOthers

Lane Departure Warning

Lane Keeping

Curve Speed Warning

Stability Control

Forward Crash Warning

Adaptive Cruise Control

Brake Assist

Automatic Braking

Blind Spot Detection

Side Radar

Intersection Movement Assist

Stop Sign & Signal Violation Warnings

CRASHES of All Severities--2007

IntelliDrive Safety ApplicationsV-V

• Forward Collisions• Intersection• Lane Change/ Merge

Communication Options

V-I Intersection Curve speed warning

Driver Information Hazard Alert Weather Navigation

10089%

25%

15%

Requires DSRC

Percent of All Crashes Addressed

IntelliDrive Network Not Just for Safety

IntelliDrive Connectivity Will SupportActive Safety applications to prevent crashes

Information-Rich Infrastructure for• mobility• efficiency• infrastructure management, and• road weather applications

Additional Applications to support •environmental stewardship•livable communities•Traveler convenience and choice

Future Vision: IntelliDrive Ultimately Will Connect All Infrastructure Users and System Managers in Real Time

•Commercial Vehicle Fleet Owners and their Drivers

•Transit System Managers, Drivers, and Passengers

•Pedestrians

•Bicyclists

For More Information

http://www.intellidrive.org/