Now showing items 12-31 of 97

    • 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 ...
    • Color Camera 

      Meyer, Jason E.; Gibbons, Ronald B.; Connell, Caroline A. (National Surface Transportation Safety Center for Excellence (NSTSCE), 2017-02-28)
      Under the sponsorship of the National Surface Transportation Safety Center for Excellence (NSTSCE), a research team at the Virginia Tech Transportation Institute (VTTI) developed a color camera system that can collect ...
    • Commercial Motor Vehicle Crash Risk by Time of Day 

      Camden, Matthew C.; Soccolich, Susan A.; Hickman, Jeffrey S.; Rossi-Alvarez, Alexandria; Hanowski, Richard J. (National Surface Transportation Safety Center for Excellence, 2020-11-16)
      Despite a plethora of research examining commercial motor vehicle (CMV) crash risk as a function of time of day, there are few studies that have included objective measures of exposure. The purpose of this study was to use ...
    • Commercial Motor Vehicle Driver Risk Based on Age and Driving Experience 

      Dunn, Naomi; Soccolich, Susan; Hickman, Jeffrey (National Surface Transportation Safety Center for Excellence, 2020-04-17)
      The commercial motor vehicle (CMV) industry comprises a largely aging workforce, which adds to a widely held concern about a growing CMV driver shortage. As CMV drivers age and retire, there are fewer workers to step in ...
    • 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 ...
    • Commercial Motor Vehicle Operator Fatigue Detection Technology Catalog and Review 

      Mabry, J. Erin; Glenn, T. Laurel; Hickman, Jeffrey Scott (National Surface Transportation Safety Center for Excellence, 2019-02-21)
      According to the National Academies of Science, Engineering, and Medicine, fatigue plays a role in up to 20% of fatal commercial motor vehicle (CMV) crashes. Because fatigue is difficult to self-assess, the use of fatigue ...
    • 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 ...
    • Comparing Three Methods of Eye-Glance Transition Coding 

      McClafferty, Julie A.; Hankey, Jonathan M. (National Surface Transportation Safety Center for Excellence, 2016-09-30)
      In order for researchers to analyze driver glance behavior and compare their results to other studies, glance evaluation methodologies must be comparable in terms of how specific terms are defined. To this end, the ...
    • Consumer Driving Automation System Education: A Learning and Retention Assessment 

      Trimble, Tammy E.; Baker, Stephanie; Russell, Sheldon; Tidwell, Scott (National Surface Transportation Safety Center for Excellence, 2020-07-08)
      For the potential safety benefits of driving automation systems to be fully realized, drivers must understand the capabilities and limitations of these systems. This study explored a range of materials that drivers may ...
    • 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 ...
    • Data Sharing Across Borders: Current Status 

      Lee, Suzanne E.; Hankey, Jonathan M. (National Surface Transportation Safety Center for Excellence, 2020-05-28)
      This report is the culmination of several years of Virginia Tech Transportation Institute (VTTI) involvement in international collaborations in the field of transportation research. The sponsor of this report, the National ...
    • Developing a Web-Based Return-on-Investment Calculator for Truck Safety Technologies 

      Camden, Matthew C.; Medina-Flintsch, Alejandra; Hickman, Jeffrey S.; Feng, Xueting; Hanowski, Richard J. (National Surface Transportation Safety Center for Excellence, 2020-10-08)
      Although large truck advanced safety technologies such as automatic emergency braking, lane departure warning, and video-based onboard monitoring are becoming more prevalent, adoption rates and use are lagging due to ...
    • 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.; 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.
    • Development of a Mobile Measurement System for Roadway Lighting 

      Gibbons, Ronald B.; Meyer, Jason E.; Edwards, Christopher J. (National Surface Transportation Safety Center for Excellence, 2018-01-04)
      In recent years, the complexity of the evaluation metrics of roadway lighting has continually increased. In order to measure the effectiveness of a roadway lighting system in situ, a mobile measurement system has been ...
    • Development of a Protocol to Classify Drivers’ Emotional Conversation 

      Fitch, Gregory M.; Russell, Sheldon M.; McClafferty, Julie A. (2017-05-05)
      To facilitate future analyses of emotion in naturalistic driving study (NDS) data, a protocol was developed to rate the emotional content of video samples collected during NDS. The protocol required data reductionists to ...
    • Development of Curriculum for the Virginia Driver's Licensing Ceremony 

      Duke, Rebekah; Klauer, Charlie; Baker, Stephanie Ann (National Surface Transportation Safety Center for Excellence, 2017-12-06)
      In Virginia, to receive the actual driver’s license (as opposed to the temporary driving permit), both a parent and the teenage driver must appear before a family district court judge and participate in the Virginia Driver’s ...