• naturalistic driving

    A new approach among already applied traffic research methods

100-Car Naturalistic Driving Study

The 100-Car Naturalistic Driving Study tracked the behaviour of the drivers of 100 vehicles equipped with video and sensor devices for more than one year. Drivers commuting on a regular basis were recruited to the study. 78 drivers drove their own car, whereas 22 drivers used leased cars. All cars were instrumented, and data were collected over an 18-month period. The instrumentation included a vehicle network box that interacted with the vehicle network, an accelerometer box obtaining longitudinal and lateral kinematic information, headway detection system providing information on leading or following vehicles, side obstacle detection to detect lateral conflicts, incident box, video-based lane-tracking system and video to validate any sensor based findings. The video equipment consisted of 5 cameras monitoring the driver’s face and driver side of the vehicle, the forward view, the rear view, the passenger side, and a view of the driver’s hands and surrounding areas. This research effort was initiated to provide an unprecedented level of detail concerning driver performance, behaviour, environment, driving context and other factors that were associated with critical incidents, near crashes and crashes. A primary goal was to provide vital exposure and pre-crash data necessary for understanding causes of crashes, supporting the development and refinement of crash avoidance countermeasures, and estimating the potential of these countermeasures to reduce crashes and their consequences.

During the study time, the vehicles were driven about 3 million km, yielding 42,300 hours of data. The 241 drivers were involved in 82 crashes, 761 near-crashes, and 8,295 critical incidents. The study and its follow-on analysis were cosponsored by the National Highway Traffic Safety Administration (NHTSA), the Virginia Transportation Research Council—the research division of the Virginia Department of Transportation (DOT) and a partnership between Virginia DOT and the University of Virginia—and Virginia Tech.

More Information on the 100-Car Naturalistic Driving Study.


Last update: November 20, 2009