Design of the In-Vehicle Driving Behavior and Crash Risk Study: In Support of the SHRP 2 Naturalistic Driving Study

Abstract

The Second Strategic Highway Research Program America's highway system is critical to meeting the mobility and economic needs of local communities, regions, and the nation. Developments in research and technology-such as advanced materials, communications technology, new data collection technologies, and human factors science-offer a new opportunity to improve the safety and reliability of this important national resource. Breakthrough resolution of significant transportation problems, however, requires concentrated resources over a short time frame. Reflecting this need, the second Strategic Highway Research Program (SHRP 2) has an intense, large-scale focus, integrates multiple fields of research and technology, and is fundamentally different from the broad, missionoriented, discipline-based research programs that have been the mainstay of the highway research industry for half a century. The need for SHRP 2 was identified in TRB Special Report 260: Strategic Highway Research: Saving Lives, Reducing Congestion, Improving Quality of Life, published in 2001 and based on a study sponsored by Congress through the Transportation Equity Act for the 21st Century (TEA-21). SHRP 2, modeled after the first Strategic Highway Research Program, is a focused, timeconstrained, management-driven program designed to complement existing highway research programs. SHRP 2 focuses on applied research in four areas: Safety, to prevent or reduce the severity of highway crashes by understanding driver behavior; Renewal, to address the aging infrastructure through rapid design and construction methods that cause minimal disruptions and produce lasting facilities; Reliability, to reduce congestion through incident reduction, management, response, and mitigation; and Capacity, to integrate mobility, economic, environmental, and community needs in the planning and designing of new transportation capacity.

Motor vehicle driving in high incidence psychiatric disability: Comparison of drivers with ADHD, depression, and no known psychopathology

“…SHRP-2 is a 6-center, prospective, naturalistic driving study. 18 Importantly, drivers were not selected based on diagnostic status but rather completed diagnostic measures after study enrollment. 18 Thus, the present study allows us to examine the extent to which two high incidence psychopathologies (ADHD, Depression) are associated with adverse driving outcomes, independent of the potential role of self-selection, demand characteristics, driving exposure, and referral bias.…”

Longitudinal Research on Aging Drivers (Longroad): Study Design and Methods

“…The LongROAD study is complementary in scope and focus to two large-scale naturalistic driving studies, Candrive/Ozcandrive (Marshall et al 2013a(Marshall et al , 2013b and the Strategic Highway Research Program (SHRP 2) Naturalistic Driving Study (NDS) (Antin et al 2011). The three naturalistic driving projects share similarities including: an interest in better understanding driving behaviors and factors that relate to crashes; data collection at multiple sites; detailed, periodic functional assessment of drivers; the use of in-vehicle data acquisition systems to measure objective driving behaviors and other metrics within a participant's own vehicle; the collection of longitudinal crash data; the periodic collection of questionnaire data on a variety of driving-related topics; a large number of drivers participating (NDS: 3102; Candrive: 1230; and LongROAD: 2990); and multi-year followup with participants.…”

Driver behaviour profiles for road safety analysis

“…The major limitation is the lack of crash data with which to validate the DBP scores. Larger and longer duration naturalistic driving studies such as the Strategic Highway Research Program 2 (SHRP2) (Antin et al, 2011) could be used as input into the DBP algorithm for validation as it contains incidents of recorded casualty crashes while the dataset available to the authors did not. Disaggregate crash data would also allow for refinement of the magnitude weights such as using different sets of weights in each TSI.…”

“…The 100-Car Naturalistic Driving Study incorporated a number of in-vehicle devices to monitor the driver, vehicle and other vehicles (Dingus et al, 2006) and served as a pilot for the national US naturalistic driving study, which included almost 2000 vehicles (Antin et al, 2011). The final dataset contained data recorded from 100 vehicles and 241 drivers over a period of 12-13 months.…”