VTTI. Driving Transportation with Technology. SHRP2 Naturalistic Driving Study S06 Update

Transcription

1 SHRP2 Naturalistic Driving Study S06 Update

2 Executive Overview: Goal Greatly increase knowledge of driver behavior How the driver interacts with and adapts to real: Vehicles Roadway characteristics Traffic environment & con Weather Emergency situations & crashes Differences in crash risk associated with these factors & their interactions Propose countermeasures based on the findings 2

3 Executive Overview: Targets Largest Naturalistic Driving Study Ever Undertaken ca. 3,100 primary drivers, all age/gender groups. ca. 3,900 data years; 2.5M trip files 2 years of data collection some participants for 1 year, some for 2 years Vehicle Types: All light vehicles including Passenger Cars Minivans SUVs Pickup Trucks 450 DAS Advanced technology vehicles Six data collection sites Integration w/ detailed roadway information (S04) Data useful for next generation of researchers 300 DAS 150 DAS 3

4 Executive Overview: Status All 6 sites installing/maintaining vehicles ca. 600 vehicles currently on the road 569+ vehicles checked via remote health check (via cellular M2M communications) 200+ hard drives ingested Data from all 6 sites undergoing quality control and ingestion into the database Onsite remote hard drive ingestion has begun 40,000+ trip files in DB2 database Hard Drive Data Upload Fixture 4

5 S06 Role: Oversight & Integration DAS Hard/Software Design Procurement/Logistics Support Installation Alignment Hardware Installation Software Shakedown Software Bench Test Software Remote Cellular Communications Health Checks Software Upgrades 5

6 S06 Role cont. Institutional Review Board Guidance/Leadership Training all study aspects Study/Participant Management Software design/development Issue Tracking Software integration OEM Network Variable Coordination Recruitment Coordination Call center supervision Screening for all recruitment avenues Advanced vehicle calling lists Sending mail to OEM-provided lists Data Upload hardware & support Ingestion Quality Control Storage 6

7 Data Acquisition System Overview Head Unit Forward Radar & License Assembly Main Unit: NextGen 7

8 DAS Data Captured Multiple Videos Machine Vision Eyes Forward Monitor Lane Tracker Accelerometer Data (3 axis) Rate Sensors (3 axis) GPS Latitude, Longitude, Elevation, Time, Velocity Forward Radar X and Y positions X and Y Velocities Cellular M2M Communications ACN, health checks, location notification Remote upgrades Illuminance sensor Infrared illumination Passive alcohol sensor Incident push button Audio (only on incident push button) Turn signals Vehicle network data Accelerator Brake pedal activation ABS Gear position Steering wheel angle Speed Seat Belt Information Airbag deployment 8

9 Camera Views 9

10 Camera Image Samples Forward View - color 15 Hz continuous video 640x320 pixels Driver Face Rotated for max pixel efficiency Center stack Pedal Interactions Mask Right-Rear View Periodic still cabin image, permanently blurred for passenger anonymity 10

11 Custom Hardware: Installation, Calibration & Ingestion Head Unit Alignment Fixture Vehicle Alignment Radar and Panel Radar Alignment Fixture 11

12 Institutional Review Board (IRB) & Related Overview Certificate of Confidentiality granted by NIH Eight IRBs involved NAS + VT + Each of the data collection contractors (S07s) Two S07s have opted to rely on VT IRB Two submission packets: Overall Study 8 amendments, so far Recruitment 11amendments, so far Why so many amendments? Continual efforts to: expand eligibility criteria (e.g., leased vehicles) enhance and expand recruitment opportunities 12

13 Training & Support Provided All technicians/managers have received training for: Participant Intake, Assessment, & IRB (1 day at ) Crash Investigation (webinar, Levels I & II) Project Management Software (webinar) Garage/Shop management (1 day at ) Hands-on Installation at (3 days at ) Data Transmission & Hard Drive Management Issue Tracking Study/Participant Management Software Two site-readiness visits Onsite technical support during first week of installs Driver Assessment Hardware 13

14 Hands-on Installer Training at 14

15 Custom Support Software Installer-ware step by step installation guide and quality process Bench Test permits bench testing prior to install Shakedown provides initial quality assurance data on a newly installed vehicle Mission Control provides overall & individual status; facilitates many activities: Contacting recruits for scheduling Participant Intake and Assessment Updating & Monitoring: site, participant, and vehicle status Adding secondary drivers Adding crash details Etc. Electronic Forms (i.e., questionnaires and other data collection forms) Web-based Screening Recruitment Tool Participant Portal information for potential recruits & form access Project Wiki Supporting internal sharing of information Request Tracker Integration of issue tracking software Driver ID - Software integration Community Viewer Open source MATLAB -based data access tool 15

16 Installation Support Software 16

17 Shakedown Software 17

18 Maintenance Software 18

19 Participant Portal 19

20 Web-Based Screening Tool 20

21 MCS Study Status - Recruiting 21

22 Mission Control Software: Study Status 22

23 Project Wiki 23

24 Community Viewer 24

25 Issue Handling & Tracking Request Tracker (RT) Tracks all logged issues from inception final adjudication (i.e., unlike phone or ) Queues each work item to appropriate group to address Permits reporting based on queues, categories, etc. Total Tickets Logged: 2,750 25

26 Hotline Google voice Technology Includes automatic transcription of voice mail For when an S07 needs immediate assistance, typically when a participant is onsite Staffed during working hours, including: Weekends Evenings and west coast hours Total Calls:

27 Participant Recruitment Status Multiple Approaches 1. Centralized random cold calls using purchased lists, at first 2. Centralized cold calls using purchased lists (eligible vehicles only) 3. Several script changes implemented to improve uptake rate 4. Traditional approaches (e.g., newspaper ads) 5. Novel Approaches (e.g., facebook, Twitter) Ca. 3,000 have agreed to participate using this method Unfortunately, many drop out prior to installation Call center provides weekly statistics that show recruitment rate and reasons for rejections Challenge: Need to increase rates to fulfill target # of participants target amount of data Approach Number Percent Vehicle-Restricted Cold Calling 2, % Traditional & Novel Approaches % Combined 2, % 27

28 Participant Recruitment Approaches: Traditional & Novel Approaches Flyers distributed on campus facebook/twitter/linkedin Banner ad on State DoT website Craigslist Posters in high schools Local news spot TV AD Contacting local school boards Offering high school science classes tours Community drivers ed. schools Community Traffic Safety Team Focus groups for teens and older people Booths at local events and fairs Flyers tailored to specific demographics Local VT Alumni chapter Flyers at DMV University Magazine PTA/band boosters Lions Club/Kiwanis/Ruritan Senior centers Flyers at private schools PPT slides for presentations Radio Station Radio Station Events Professional Marketers Flyers on cars Newspapers - classifieds Newspapers - non-classifieds Newspaper - university/papers Mass Local Theater Banner Ads Cable News Feed Instrumented demo vehicle Summer orientation Vehicle Wrap or Magnet 28

29 What Questions Do You Have? 29

30 Supplemental Slides if/as Needed 30

31 Experimental Design Gender: Age Range Description One Two DAS Primary Data-Years Age Range Year Years units Participants M Minor Teen M Adult Teen M Young Adult M Adult M Middle Adult M Mature Adult M Younger Older Driver M 76+ Older Older Driver F Minor Teen F Adult Teen F Young Adult F Adult F Middle Adult F Mature Adult F Younger Older Driver F 76+ Older Older Driver Any Advanced Vehicle Technology Totals: new totals 1, ,950 3,102 3,900 original totals 1, ,950 3,102 3,900 31

32 Accelerometer & Rate Sensors Acceleration 500 Hz for incident recording; 10 Hz continuous) Lateral Longitudinal Vertical Gyro yaw rate 100 Hz for incident recording; 10 Hz continuous) 32

33 Forward Radar (10 20 Hz) Minimum of 5 objects tracked Target vehicle range Target vehicle range rate Target vehicle orientation relative to participating vehicle Track type 33

34 GPS (1 Hz) GPS time Latitude Longitude Altitude Velocity (X, Y, Z) Status (number of satellites being tracked) 34