Driver Alcohol Detection System for Safety (DADSS) A Cooperative Research Effort Between Industry and Government

7/31/2019 Driver Alcohol Detection System for Safety (DADSS) A Cooperative Research Effort Between Industry and Government

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30th Anniversary MADD National Conference

Washington DC

September 25, 2010

Susan Ferguson, Ph.D.

ACTS

Driver Alcohol DetectionSystem for Safety (DADSS)

A Cooperative Research Effort

Between Industry and Government


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Driver Alcohol Detection System for Safety

(DADSS)

The Automotive Coalition for Traffic Safety and NHTSA enteredinto a cooperative agreement in February 2008 to explore the

feasibility, the potential benefits of, and the public policy challengesassociated with a more widespread use of unobtrusive technologyto prevent drunk driving

Goal is to develop non-invasive, seamless technologies to measure

driver BAC and reduce the incidence of drunk driving Systems need to measure alcohol accurately, precisely, reliably,

and in a very short time so the sober driver is not inconvenienced

Five-year program to develop and test prototypes that may be

considered for vehicle integration thereafter Devices intended to prevent alcohol impaired drivers (BAC 0.08)

from driving their vehicles

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Participating Manufacturers

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Stomach

Intestines

Liver Heart

Lungs

CapillaryBed

Tissue and OrgansSweat/Vapor

Waste

ArterialBAC

Inferior Vena Cava

Hepatic Artery

VenousBAC

ArterialBloo

d

Venous

Blood

Breath AlcoholConcentration

Transdermal AlcoholConcentration

Tissue AlcoholConcentration

Urine Alcohol

Concentration

AbsorptionAlcohol and Elimination

Portal Vein


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PROGRAM PROCESS


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2008 2009 2010 2013

Phase IFunding

Phase IIFunding

Perform InteriorMockup Testing

Develop DADSSDemonstration

Vehicle

Implement DADSSSubsystem(s) in VehicleInterior Mockup

Perform DADSSDemonstration

Vehicle Testing

Phase II SubsystemDevelopment

Human

SubjectsTests

HumanSubjects

Tests

Interior

MockupTests

DemoVehicle

Tests

PerformTechnology

Verification

PerformPrototype(s)Lab Testing

DevelopDADSS

SubsystemPrototype(s)

BenchTests

Phase I

PrototypeDevelopment

HumanSubjects

Tests

DADSS Program Process

Q3Q2

Patents andLiterature

Review

PerformanceSpecifications

Request forProposals

Assess

Current Stateof Technology

Request forInformation


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OVERVIEW OF PHASE I TECHNOLOGIESBEING FUNDED FOR DEVELOPMENT


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Breath-Based Prototypes

Alcohol (ethanol) and carbondioxide in exhaled drivers breathmeasured by infraredspectroscopy sensors

Unobtrusive sniffer to detect

alcohol in the vehicle Carbon dioxide detection

allows measurement of breathdilution

Multiple sensors in-vehicle

(steering wheel, A-Pillar, etc..)

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ACS/Daylight Solutions Prototype

Schematic of possible vehicle application

Autoliv Prototype


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Autoliv In-Vehicle Sensing In-vehicle expired breath aerodynamics studied to

estimate alcohol levels at various positions withventilation on and off

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Autoliv In-Vehicle Sensing

Door closing


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Alcohol Countermeasure Systems (ACS)

ACS prototype uses Mid Infrared detectionmethodology

Daylight Solutions External Cavity QuantumCascade Laser (ECqcL)

Scans a broad range of wavelengths

Ability to capture entire ethanol

fingerprint Allows detection of other potential

interfering substances

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Measurement Conditions100 sweeps10 sec. acquisition time

ACS Development StatusEthanol Methanol

Isopropyl Alcohol Acetone

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Touch-Based Prototype

Tissue Spectrometry Touch-based system

Uses Near Infrared toidentify alcohol

concentration in thedermis

Extensive human subjectstesting

TruTouch Prototype

stratum corneumstratum corneum

epidermisepidermis

dermisdermis

subcutaneoussubcutaneous

Schematic of possible vehicle application


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BIOSAFETY LEVEL 1 LABORATORY


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DADSS BSL-1 Laboratory All DADSS prototype testing, including human subject studies, will

be performed at the BSL-1 Laboratory

The laboratory provides

Controlled environmental test conditions Commercial and custom test instrumentation

Controlled storage

Data acquisition systems

Multiple work stations for materials preparation Human subject testing will be performed with experts from the

McLean Hospital, Harvard Medical School

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DADSS BSL-1 Laboratory

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STANDARD CALIBRATION DEVICES


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DADSS Phase I Requirements Phase I POP Prototypes will be evaluated against the following

performance specifications:

Measure from 0.01% to 0.12% BAC

Measurement time = 325 milliseconds

Accuracy and Precision

0.07%-0.09% BAC 0.0003% BAC

Requires Standard Calibration Devices (SCD) Breath-based systems

Tissue-based systems

DADSS Performance Specifications DRAFT07 available at:http://dev.dadss.org/performance-specification/download

High accuracy butlow precision

High precision but

low accuracy

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Standard Calibration Devices (SCD)Objective Assess the accuracy and precision of the Phase I prototypesApproach

Provide sample sources of breath or tissue SCD to sensorChallenge Develop process to assure the SCD performance

Delivers targeted samples to POP sensor Has to exceed accuracy and precision requirements

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DADSS Program Review

HUMAN SUBJECT TESTS


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Human Subjects Tests Subjects dosed to reach a BAC of 0.12

Test procedures

Blood is drawn at a rate of 1 ml/minthrough catheter

Samples taken every 2.5 minutes

Every 5 minutes subject provides:evidential breath sample, short puff ofbreath into DADSS breath-basedsystem, and presses finger on touchpad of touch-based system

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PUBLIC ACCEPTANCE AND POLICYISSUES


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Acceptance among the public andkey leaders is critical

Technology will be effective only if the driving publicwelcomes and accepts it:

58 percent of the U.S. public say they support smart technologyto prevent driver impairment including alcohol-impaired driving(MADD U.S survey, 2006)

64 percent of the U.S. public say they support advancedtechnology in all vehicles, if it is reliable, to prevent anyone withan illegal BAC from driving their car (IIHS, 2009)

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Public Acceptance Needs Assess what technology solutions might prove the most acceptable

and how they might best be implemented

Assess current levels of consumer understanding of DADSS, and

levels of acceptance

Monitor public acceptance levels over time and willingness to adoptthe technology on their vehicles

Discuss policy issues with relevant stakeholder groups

Educate the public about potential technological solutions as itrelates to the alcohol-impaired driving problem

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Planned Public Acceptance Research

Focus groups due to commence February 2011

Periodic national surveys

Stakeholder group discussions

Review and revise DADSS Performance Specifications, as may beindicated by the findings of the public acceptance research


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Communicating with the Public

A website has been launched toprovide public information:

Content A go to site to provide

project details,

Answer key questions abouttechnology development anddrinking and driving

www.dadss.org

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Summary

DADSS technologies have been identified, contracts awarded, andprototypes are undergoing bench and human subjects testing

Preliminary phase I results indicate there are technologies showingsufficient promise to meet DADSS Performance Specifications withrespect to measurement time, accuracy, and precision

Technology developers have identified the work needed to meet theDADSS requirements

Public acceptance research plan has been developed the publicmust be knowledgeable about the system and see its benefit in theirvehicles

Dialogue continues with policy makers and other key stakeholdersto ensure their support

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Next Steps

2011

Q1

2011

Q2

2011Q3

2011Q4

2010Q1

2010Q2

2010Q3

2010Q4

RFPEvaluation

AwardeeSelection

Phase I ContractAward

Phase II Kick-Off Meeting

Begin ResearchVehicle Development

Phase I PrototypeTest Plan

Early AssessmentHuman Subjects

Tests

Phase I PrototypesBench Tests

Phase IIRFP

TechnologyReview Gate

StandardCalibration

Devices

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QUESTIONS?

http://www.dadss.org

Contact Information

Susan Ferguson

[email protected]

Documents

Driver Alcohol Detection System for Safety (DADSS) A Cooperative Research Effort Between Industry and Government