Now showing items 4-23 of 44

    • Case Study on the Impact of Treating Sleep Apnea in Commercial Motor Vehicle Drivers: Sleep Apnea Programs from Two Leading U.S. Carriers and Focus Group Findings 

      Mabry, J. Erin; Baker, Stephanie Ann; Hickman, Jeffrey S.; Hanowski, Richard J. (Virginia Tech. Virginia Tech Transportation Institute, 2012-09-28)
      Approximately one in four commercial motor vehicle (CMV) drivers in the U.S. are estimated to possess mild or higher levels of obstructive sleep apnea (OSA), the most common sleep-breathing disorder that is associated with ...
    • Case Study on Worksite Health and Wellness Program for Commercial Motor Vehicle Drivers 

      Mabry, J. Erin; Hickman, Jeffrey S.; Hanowski, Richard J. (Virginia Tech. Virginia Tech Transportation Institute, 2013-10)
      Due to the elevated prevalence of overweight and obesity in the transportation industry and the risks that accompany obesity, a health and wellness (H&W) program at a leading trucking organization was initiated to reduce ...
    • CMV Driver Health Outreach 

      Trimble, Tammy E.; Morgan, Justin F.; Hanowski, Richard J.; Blanco, Myra (Virginia Tech. Virginia Tech Transportation Institute, 2013-10)
      Many commercial motor vehicle (CMV) drivers struggle to maintain a healthy lifestyle against the demands of their job. While some previous CMV health programs have been developed, these programs have either not been widely ...
    • Commercial Motor Vehicle Driving Safety Website 

      Tidwell, Scott; Trimble, Tammy; Blanco, Myra (National Surface Transportation Safety Center for Excellence, 2016-08-06)
      This report documents the CMV Driving Safety website (http://cmvdrivingsafety.org/), which was created by the National Surface Transportation Safety Center for Excellence (NSTSCE) as an outreach effort to assist commercial ...
    • Commercial motor vehicle health and fatigue study : final report 

      Wiegand, Douglas M.; Hanowski, Richard J.; McDonald, Shelby E. (Virginia Tech. Virginia Tech Transportation Institute, 2009-02-11)
      Fatigue is a major risk factor in commercial motor vehicle operations, identified in naturalistic driving studies as a contributing factor in approximately 20 percent of safety-critical incidents. Understanding the nature ...
    • Common Data Elements between the Large Truck Crash Causation Study Investigations and Commercially Available Onboard Monitoring Systems 

      Marburg, T. Laurel; Hickman, Jeffrey S.; Hanowski, Richard J. (2015-01-28)
      At the heart of traffic safety is the identification of factors that lead to crashes. With this knowledge, interventions can be developed to mitigate or prevent these factors from occurring in the future. Post hoc ...
    • Crash Trifecta: A Complex Driving Scenario Describing Crash Causation 

      Dunn, Naomi J.; Hickman, Jeffrey S.; Hanowski, Richard J. (2014-07-28)
      When determining crash causation, crash databases emphasize a single, unitary critical reason (CR) as the primary proximal cause of a safety-critical event (SCE), which leaves no room for the specification of any other ...
    • Development and evaluation of a naturalistic observer rating of drowsiness protocol : final report 

      Wiegand, Douglas M.; McClafferty, Julie; McDonald, Shelby E.; Hanowski, Richard J. (Virginia Tech. Virginia Tech Transportation Institute, 2009-02-25)
      VTTI researchers have developed a method for rating driver drowsiness based on the evaluation of naturalistic video footage of the driver's face and upper torso. This measure, referred to as the Observer Rating of Drowsiness ...
    • Development and validation of a luminance camera : final report 

      Meyer, Jason E.; Gibbons, Ronald B. (Ronald Bruce); Edwards, Christopher J. (Virginia Tech. Virginia Tech Transportation Institute, 2009-02-11)
      Under the sponsorship of the National Surface Transportation Safety Center for Excellence (NSTSCE), an effort was undertaken to develop a system of image capture to analyze luminance data gathered in naturalistic driving research.
    • Distraction Index Framework: Final Report 

      Perez, Miguel A.; Hankey, Jonathan M. (Virginia Tech. Virginia Tech Transportation Institute, 2013-03-01)
      The usage of a radio while driving has long been considered socially acceptable. There is recent concern, however, about radio usage, in its ever-changing context, remaining a relatively low-risk activity to perform while ...
    • Effective Use of Commercially Available Onboard Safety Monitoring Technologies: Guidance for Commercial Motor Vehicle Carriers 

      Camden, Matthew C.; Hickman, Jeffrey S.; Hanowski, Richard J. (National Surface Transportation Safety Center for Excellence, 2015-03-03)
      Studies show that most commercial motor vehicle (CMV) crashes involve risky driving behaviors or errors on the part of the driver and thus are preventable. One method to reduce risky driving behaviors is through the use ...
    • Enhanced Camera 

      White, Elizabeth; Chilcott, Dan; Doerzaph, Zachary (National Surface Transportation Safety Center for Excellence, 2016-08-09)
      This report describes testing equipment and procedures developed by the Center for Technology Development at the Virginia Tech Transportation Institute (VTTI) to evaluate critical attributes for cameras used in naturalistic ...
    • Evaluating the Influence of Crashes on Driving Behavior using Naturalistic Driving Study Data 

      Guo, Feng; Chen, Chen (National Surface Transportation Safety Center for Excellence, 2015-07-16)
      It is hypothesized that intense events such as crashes could influence driver behavior and driving risk. This study evaluated the influences of crash events on driver behavior and driving risk using data from the 100-Car ...
    • Evaluation of Light-Vehicle Driver Education Programs Targeting Sharing the Road with Heavy Vehicles: A Case Study Analysis 

      Baker, Stephanie Ann; Schaudt, William A.; Joslin, Spencer; Tidwell, Scott; Bowman, Darrell Scott, 1969-
      The purpose of this case study project sponsored by the National Surface Transportation Safety Center for Excellence (NSTSCE) was twofold. First, researchers investigated current light-vehicle driver education programs ...
    • Evaluation of Older Driver Fitness-to-Drive Metrics and Driving Risk Using Naturalistic Driving Study Data 

      Guo, Feng; Fang, Youjia; Antin, Jonathan F. (National Surface Transportation Safety Center for Excellence, 2015-07-28)
      In this study, we evaluated the relationship between older drivers’ fitness assessment profiles and their driving risk, represented primarily by crash and near-crash (CNC) rate, and secondarily by high g-force (HGF) event ...
    • Fatigue analyses : from 16 months of naturalistic commercial motor vehicle driving data 

      Wiegand, Douglas M.; Hanowski, Richard J.; Olson, Rebecca L. (Rebecca Lynn); Melvin, Whitney (Virginia Tech. Virginia Tech Transportation Institute, 2008-05-31)
      Under the sponsorship of the National Surface Transportation Safety Center for Excellence, an existing naturalistic data set from the Drowsy Driver Warning System Field Operational Test (DDWS FOT) was expanded and analyzed ...
    • Geospatial analysis of high-crash intersections and rural roads using naturalistic driving data : final report 

      Cannon, Brad R.; Sudweeks, Jeremy D. (Virginia Tech. Virginia Tech Transportation Institute, 2011-09-26)
      Despite the fact that overall road safety continues to improve, intersections and rural roads persist as trouble areas or hotspots. Using a previously developed method, naturalistic driving data were identified through ...
    • Heavy-Vehicle Safety Outreach 

      National Surface Transportation Safety Center for Excellence (2014-04-09)
      The objective of the Heavy-Vehicle Safety Outreach project was to develop and implement a pragmatic curriculum to support the needs of safety managers. Safety managers for motor carrier fleets serve as the point of ...
    • Identification of Cognitive Load in Naturalistic Driving 

      Angell, Linda; Perez, Miguel A.; Soccolich, Susan A. (National Surface Transportation Safety Center for Excellence, 2015-07-28)
      Over the last decade, naturalistic driving studies have provided significant insight into issues pertaining to the roles of distraction, inattention, and drowsiness in crash risk. New techniques have been developed for ...
    • Identification of factors related to violation propensity : mining the data of the Franklin intersections 

      Doerzaph, Zachary R. (Zachary Richard); Bhagavathula, Rajaram (Virginia Tech. Virginia Tech Transportation Institute, 2011-02-04)
      This report describes an investigation of factors related to the prevalence of red-light violations at signalized intersections. A sample of 3,000 violators were compared to a matched set of compliant vehicle approaches ...