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12 feedback and nonfeedback conditions, possibly indicating that ance Metrics Partnership (CAMP) collaborative project, the drivers became aware of their unsafe driving behaviors and first study was an infrastructure-based effort monitoring sig- learned to improve their driving. nalized and stop-controlled intersections. The study was The study used a DriveCam camera mounted to the wind- undertaken to model stopping behavior and the kinematic shield underneath the rearview mirror. The DriveCam is a factors that could lead to intersection violations. palm-sized device that integrates two cameras (in-cab and for- Continuous video was collected. Stop-controlled inter- ward view) and a wireless transmitter. Video data are continu- sections generally had one camera focused on one particular ously buffered 24 h per day but only write to memory when a approach. Signalized intersections had four channels of video, threshold in latitudinal or longitudinal force is exceeded. one for each approach. In total, 1.5 TB of video and radar data Twenty seconds of data (10 before and 10 after each "event were collected. Other data collected included lateral speed, trigger") were recorded. Event triggers included any event that lateral and longitudinal acceleration, lateral and longitudinal exceeded g-forces of .055 for lateral movement or 0.50 for lon- range, and lane tracking for approaching objects (1617). gitudinal movement. If an event occurred, the drivers were given immediate feedback. Project 13: Pilot Study to Test In this data set, weather was coded as clear or cloudy; fog; Multiple Medication Usage rain; mist; snow, sleet, or hail; or smoke or dust. Because no and Driving Functioning GPS data were collected, location-related environmental data cannot be linked to the data. However, the data were reduced The study was performed by TransAnalytics for the National such that extensive environmental data (e.g., traffic condition, Highway Traffic Safety Administration (NHTSA). Its purpose work zones, and driver behavior data) are coded in the reduced was to explore the relationship between polypharmacy and database by reductionists (1314). driving functioning through separate but related research activ- ities. Driver performance evaluations, brake response time, and functioning screening measures were conducted for the study Project 11: Naturalistic Teen sample; drug profiles were documented through a "brown bag" Driving Study review by a licensed pharmacist. Field evaluation occurred on The Naturalistic Teen Driving Study (NTNDS) was conducted routes in residential communities in the Hockessin, Delaware, by VTTI. The primary purpose of the study was to evaluate and and Parkville, Maryland, vicinities. quantify crash risk among teen drivers. VTTI installed DASs in Two miniature video cameras were used: one for the driver's 42 cars primarily driven by newly licensed teenage drivers in face view and one for the forward road view. Cameras were the New River Valley area of Virginia. Naturalistic driving data used in the field study of driver performance of 44 older adults. of the teens and a parent of each teen were collected during the Additionally, cameras were used in private cars of a subsample course of 18 months. The resulting data set has 500,000 VMT, of five individuals. The video data included the Advanced amounting to 5.1 TB of data. System Format (ASF) with 704 496 resolutions and a 12-Hz Continuous video was collected on four channels: driver's frame rate. Each trip was recorded in 10- to 100-s snippets face, instrument panel (over driver's right shoulder), forward (depending on the amount of motion in the video), which were roadway, and rear roadway. Two additional cameras would later combined and rendered in postprocessing to produce periodically activate for a few seconds at a time. These cameras single clips for subsequent video coding analysis. Recorders provided views of the vehicle's entire cabin (blurred to protect were set to start recording automatically when powered on and passenger identities) and the lap area of the back seat. to stop recording when no motion was detected in the driver Other data, such as GPS (latitude, longitude, and heading); face view camera for at least 30 s. X, Y, and Z acceleration; forward radar-collected data; and Other data, such as driving speed, brake response time, GPS, video-based lane tracking data, as well as reduced data (e.g., onboard diagnostics (including vehicle speed, throttle position, eyeglance behavior, time-of-day and ambient lighting, road and engine speed), and date and time, were also recorded. The type and geometry, and traffic density), were available in the lane-changing behavior of the drivers was manually recorded resulting database (15). by researchers in this study (18). Project 12: Cooperative Project 14: Older Driver Intersection Collision Field Operational Test Avoidance System for The purpose of the FOT, which is being conducted by Violations Infrastructure VTTI, is to study older drivers' driving behavior. The data During the Cooperative Intersection Collision Avoidance Sys- collection process is still ongoing. The estimated resulting tem for Violations (CICAS-V), a VTTI and Collision Avoid- data set should have 4,867 h of video data and 2.5 TB of