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http://www.vtti.vt.edu/national/nstsce/

Recent Submissions

  • Camera-based Feature Identification for EasyMile Operation 

    Sarkar, Abhijit; Sundharam, Vaibhav; Manke, Aditi; Grove, Kevin (National Surface Transportation Safety Center for Excellence, 2022-11-15)
    The EasyMile deployment studied in this work included cameras that captured the 360 degrees of roadway environment around the vehicle. We developed a scene perception algorithm using computer vision technology to track ...
  • Effectiveness of Lighted Work Zone Apparel: Effects on Visibility 

    Bhagavathula, Rajaram; Kassing, Andrew; Gibbons, Ron; Medina, Alejandra (National Surface Transportation Safety Center for Excellence, 2022-11-11)
    In United States, collisions between vehicles and workers in a work zone are a major problem. In 2020, there were 157 worker fatalities in work zone in the United States. Increasing worker conspicuity has the potential to ...
  • Exploration of U.S. National Pedestrian Traffic Crashes 

    Witcher, Christina; Henry, Scott; Sullivan, Kaye (National Surface Transportation Safety Center for Excellence, 2022-11-07)
    The number of pedestrian traffic fatalities in the U.S. has been increasing since 2009, following a general decline for several decades, while the number of non-fatally injured pedestrians in traffic crashes remained ...
  • Safety and Crash Risks with Vehicle Strings 

    Li, Eric; Gibbons, Ronald B.; Kim, Bumsik (National Surface Transportation Safety Center for Excellence, 2022-11-03)
    In the course of many previous studies on nighttime safety, the research team came to believe that there is a potential safety benefit of cars traveling in stabilized strings during free-flow conditions. Recent technical ...
  • Initial Investigation of Intersection Lighting 

    Bhagavathula, Rajaram; Gibbons, Ronald B. (National Surface Transportation Safety Center for Excellence, 2022-10-31)
    Nighttime crashes at intersections are a major traffic safety concern in the United States. Although providing lighting at intersections has proved to be a successful intervention against night crashes, current approaches ...
  • The Assessment of New Roadway Lighting in Rain and Fog 

    Williams, Brian; Gibbons, Ronald B. (National Surface Transportation Safety Center for Excellence, 2022-10-27)
    This study sought to determine if different types of roadway lighting performed differently in rain or fog. The performance of the lighting was determined by participants’ ability to detect different objects along the ...
  • Fleet-based Driver Monitoring Systems: Accelerating Commercial Motor Vehicle and Occupational Driver Acceptance of Driver-facing Cameras 

    Camden, Matthew C.; Glenn, T. Laurel; Manke, Aditi; Hanowski, Richard J. (National Surface Transportation Safety Center for Excellence, 2022-10-14)
    Driver monitoring systems (DMSs) are an in-vehicle technology with promise to improve transportation safety for commercial motor vehicle (CMV) and occupational light vehicle drivers. DMSs include various sensors and cameras ...
  • Safety Benefits of a Carrier-implemented Sleep Apnea Program for Commercial Motor Vehicle Drivers 

    Mabry, J. Erin; Glenn, T. Laurel; Soccolich, Susan; Hickman, Jeffrey Scott; Durmer, Jeffrey (National Surface Transportation Safety Center for Excellence, 2022-10-11)
    The Virginia Tech Transportation Institute (VTTI) collaborated with a leading third-party population sleep health provider, Fusion Health, and two for-hire carriers to perform an independent analysis of the safety benefits ...
  • Large Truck Safety at Highway Railroad Grade Crossings: Developing a Naturalistic Commercial Motor Vehicle Database of Railroad Grade Crossings 

    Camden, Matthew C.; Manke, Aditi; Soccolich, Susan A.; Islam, Mouyid; Medina-Flintsch, Alejandra; Feierabend, Neal; Alemayehu, Desta (National Surface Transportation Safety Center for Excellence, 2022-10-12)
    In 2021, there were 2,131 collisions, 237 fatalities, and 653 injuries at highway-railroad grade crossings (RGCs). However, these data do not include the full scope of incidents at RGCs, as they do not account for ...
  • Development and Testing of an Integrated, Versatile, Bicycle-Based Data Acquisition System 

    Owens, Justin M.; Alden, Andrew; Antin, Jon; Gibbons, Ronald B. (National Surface Transportation Safety Center for Excellence, 2022-09-27)
    The goal of this study was to develop and demonstrate the effectiveness of a novel bicycle data acquisition system (bikeDAS) to extend the Virginia Tech Transportation Institute’s expertise in instrumentation and naturalistic ...
  • Does Eyeglance Affect Lane Change Safety: Analysis of Eyeglance Pattern Prior to Lane Change 

    Guo, Feng; Han, Shu; Xu, Jingbin (National Surface Transportation Safety Center for Excellence, 2022-09-23)
    The driver’s eyeglance patterns prior to lane change can have a major impact on crash risk. This study focuses on the area-of-interest (AOI) in eyeglances related to lane changes, including rearview mirror, left/right ...
  • SmartShield: A Proof-of-Concept Application for Augmented Reality in Driving Research 

    Owens, Justin; Kavanaugh, Daniel; Wotring, Brian (National Surface Transportation Safety Center for Excellence, 2022-09-16)
    Driver behavior research has traditionally been conducted using varied modalities ranging from controlled experimental research to naturalistic observation, all of which face fundamental trade-offs among realism, control, ...
  • Analyzing Intersection Gap Acceptance Behavior with Naturalistic Driving Data 

    Li, Yingfeng (Eric); Hao, Haiyan; Gibbons, Ronald B.; Medina, Alejandra (National Surface Transportation Safety Center for Excellence, 2022-09-14)
    Safety at unsignalized intersections continues to be a major concern for transportation agencies and roadway users. To improve intersection safety, this project conducted a comprehensive study of gap acceptance behaviors ...
  • The Shanghai Naturalistic Driving Study 

    Guo, Feng; Han, Shu; Hankey, Jon (National Surface Transportation Safety Center for Excellence, 2022-09-02)
    The Shanghai Naturalistic Driving Study (SHNDS) was a collaborative research study conducted by the Virginia Tech Transportation Institute (VTTI), the General Motors Company, and Tongji University. The SHNDS was the first ...
  • Voluntary Versus Mandatory Standards: Analysis of Voluntary and Mandatory Regulations Use Cases to Address Rapidly Developing Technologies 

    Maheshwary, Anurag; Fitzgerald, Kaitlyn; Trimble, Tammy; Blanco, Myra (National Surface Transportation Safety Center for Excellence, 2021-04-20)
    This report examines the approaches that are being used by a variety of institutions to regulate rapidly emerging technologies in transportation. Several case studies were examined to determine if there are relevant criteria ...
  • Estimating the Prevalence of Synthetic Cannabinoid Use Among Commercial Motor Vehicle Drivers: Developing a Pilot Test to Collect Data on Substance Use 

    Soccolich, Susan A.; Camden, Matthew C.; Glenn, T. Laurel; Link-Owens, Christine; Hall, Anne; Hodge, Julie; Hanowski, Richard J. (National Surface Transportation Safety Center for Excellence, 2022-08-19)
    The extent to which commercial motor vehicle (CMV) drivers are using synthetic cannabinoids (SCs) and the magnitude of SC-impaired driving remains unclear. This study was the first of its kind to specifically pilot test ...
  • A Case Study Approach to Understand Heavy Truck Safety-critical Events in Work Zones 

    Dunn, Naomi; Soccolich, Susan; Hickman, Jeffrey Scott (National Surface Transportation Safety Center for Excellence, 2022-08)
    Large trucks are overrepresented in work zone crashes. Data from the Federal Motor Carrier Safety Administration’s Large Truck and Bus Crash Facts show that, in 2017, 30% of work zone fatal crashes and 12% of work zone ...
  • Analysis of Car Cut-ins Between Trucks Based on Existing Naturalistic Driving Data 

    Sarkar, Abhijit; Engström, Johan; Hanowski, Richard J. (National Surface Transportation Safety Center for Excellence, 2022-03-21)
    For successful operation of cooperative adaptive cruise control, the participating vehicles follow certain operational criteria. For truck platooning, the participating trucks are required to maintain a minimum inter-vehicular ...
  • Alcohol Intoxication Checklist: A Naturalistic Approach 

    Wotring, Brian; Antin, Jonathan F.; Smith, Ryan C. (National Surface Transportation Safety Center for Excellence, 2021-07-16)
    This effort sought to determine the prevalence of particular visual and behavioral indicators for alcohol intoxication using data collected in the Strategic Highway Research Program 2 Naturalistic Driving Study (SHRP 2 ...
  • Analysis of Run-off-road Safety-critical Events in Virginia 

    Turturici, Marissa; Noble, Alexandria M.; Klauer, Charlie (National Surface Transportation Safety Center for Excellence, 2021-05-27)
    Run-off-road (ROR) crashes account for a large proportion of fatalities on U.S. roadways. ROR crashes usually involve a single vehicle and occur when the vehicle departs the roadway and then strikes an object. The research ...

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