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Recent Submissions

  • 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 ...
  • 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 ...
  • Vehicle Information Reporting Systems 

    Fitzgerald, Kaitlyn; Blanco, Myra (National Surface Transportation Safety Center for Excellence, 2020-09-22)
    The Vehicle Identification Number (VIN) standard currently tracks data elements such as manufacturing details, vehicle descriptors, vehicle security codes, and serial numbers. To date, the VIN standard does not include ...
  • Alcohol and Drug Testing: Informational Guidelines for Occupational Drivers 

    Glenn, T. L.; Camden, M. C.; Hickman, J. S. (National Surface Transportation Safety Center for Excellence, 2020-09-04)
    The Omnibus Transportation Employee Testing Act of 1991 requires all Department of Transportation (DOT) agencies to conduct drug and alcohol testing of safety-sensitive transportation employees, which includes commercial ...
  • Examining the Relationship Between CMV Driver Retention and Safety 

    Camden, Matthew C.; Soccolich, Susan A.; Hickman, Jeffrey S.; Walker, Martin; Hanowski, Richard J. (National Surface Transportation Safety Center for Excellence, 2020-08-13)
    Many segments in the trucking industry experience extremely high rates of driver turnover. Although some research has shown a link between high driver turnover and increased crash risk, it is not known if voluntary turnover ...
  • Improving Mobility for Rural Older Adults: A Program Review 

    Wotring, Brian; Antin, Jon (National Surface Transportation Safety Center for Excellence, 2020-08-07)
    The population of older adults is increasing and is expected to represent a larger proportion of the population over the next several decades. Those who live in rural areas face many transportation challenges, including a ...
  • The Assessment of Alternative Overhead Sign Lighting 

    Williams, Brian; Gibbons, Ronald B. (National Surface Transportation Safety Center for Excellence, 2020-07-22)
    This report evaluates an alternative method for lighting highway signs that takes advantage of their retroreflective properties. This method uses a single luminaire mounted some distance upstream of the sign, with a focused, ...
  • Bicycle Visibility: Conspicuity of Bicycle Headlamps, Tail Lamps, and Retroreflective Garments in Nighttime Roadway Environments 

    Bhagavathula, Rajaram; Gibbons, Ronald B.; Williams, Brian; Connell, Caroline (National Surface Transportation Safety Center for Excellence, 2020-07-21)
    Cyclist deaths are overrepresented among traffic fatalities, and increasing cyclist conspicuity to drivers could potentially reduce cyclist deaths, particularly at night. This report describes an experiment with various ...
  • 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 ...
  • Virtual Reality as a Tool to Evaluate Pedestrian Safety 

    Bhagavathula, Rajaram; Williams, Brian; Owens, Justin; Gibbons, Ronald B. (National Surface Transportation Safety Center for Excellence, 2020-06-25)
    Virtual reality (VR) promises to be an effective tool to evaluate changes to the built environment that could improve safety for pedestrians. However, in order to draw actionable conclusions from VR, it is important to ...
  • Safety Countermeasures at Unsignalized Intersections – A Toolbox Approach 

    Li, Eric; Medina, Alejandra; Gibbons, Ronald B. (National Surface Transportation Safety Center for Excellence, 2020-06-23)
    In 2015, approximately 8,000 intersection and intersection-related fatal crashes occurred on the nation’s highway system, resulting in more than 8,400 fatalities. That death toll represented about 24% of the traffic-related ...
  • 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 ...
  • Pre-Employment Screening Best Practices in the Commercial Motor Vehicle Industry 

    Mabry, J. Erin; Hickman, Jeffrey S.; Glenn, T. Laurel (National Surface Transportation Safety Center for Excellence, 2020-05-22)
    This study documents innovative and successful practices for pre-employment screening in the commercial motor vehicle (CMV) industry and assesses the prevalence and effectiveness of these pre-employment screening practices ...
  • Impact of Ridesharing on Vehicle Miles Traveled 

    Du, Jianhe; Rakha, Hesham (National Surface Transportation Safety Center for Excellence, 2020-05-05)
    Due to the rapid development of the ridesharing industry, there is very limited data available for researchers and practitioners to draw a comprehensive conclusion regarding resultant changes in vehicle miles traveled ...
  • Evaluation of an In-vehicle Monitoring System Among an Oil and Gas Well Servicing Fleet 

    Krum, Andrew; Miller, Andrew; Soccolich, Susan (National Surface Transportation Safety Center for Excellence, 2020-05-01)
    A pilot study of an in-vehicle monitoring system (IVMS) was conducted among a fleet of oil and gas well servicing vehicles. Data collected from the fleet were handled anonymously across 21 IVMS-instrumented light vehicle ...
  • Parent Perceptions of Real-Time and Non-Video Feedback from the Driver Coach Study 

    Baker, Stephanie; Klauer, Charlie; Baynes, Peter; Dingus, Thomas A. (National Surface Transportation Safety Center for Excellence, 2020-04-24)
    Motor vehicle crashes are the leading cause of death for teens. Research indicates that an effective way to improve teen safety is through the use of in-vehicle monitoring devices that provide feedback to teens and parents. ...
  • Large Truck Technology Return-on-Investment Calculator: User Guide and Instruction Manual 

    Camden, Matthew C.; Medina-Flintsch, Alejandra; Hickman, Jeffrey S.; Hanowski, Richard J. (National Surface Transportation Safety Center for Excellence, 2020-04-21)
    In 2015, large trucks were involved in 415,000 crashes in the United States that resulted in approximately 116,000 injuries and 4,067 fatalities. One way to reduce these crashes and their resulting injuries and fatalities ...
  • Modeling Driver Intent in Potential Right Turning Scenarios 

    Gorman, Thomas (National Surface Transportation Safety Center for Excellence, 2020-04-20)
    The objective of this work was to build predictive models of driver intent at T-intersections based on vehicle speed, acceleration, brake pedal state, and speed limit data from the Second Strategic Highway Research Program. ...
  • 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 ...
  • Quiet Car Detectability: Impact of Artificial Noise on Ability of Pedestrians to Safely Detect Approaching Electric Vehicles 

    Neurauter, Luke; Roan, Michael; Song, Miao; Miller, Marty; Glenn, Eric; Walters, Jacob (National Surface Transportation Safety Center for Excellence, 2020-04-10)
    Many auto manufacturers are now producing hybrid and electric vehicles with an additive noise component to signal vehicle presence in the same way that internal combustion engine vehicles signal their presence through ...

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