Now showing items 79-97 of 97

    • The Risk of a Safety-critical Event Associated with Mobile Device Subtasks in Specific Driving Contexts 

      Fitch, Gregory M.; Hanowski, Richard J.; Guo, Feng (2014-07-28)
      Using a cell phone while driving has been associated with an increased crash risk. However, when examining the inherent subtasks, naturalistic driving studies (NDSs) have shown that safety-critical event (SCE) risk is ...
    • Roadway Epochs: Documentation and User Manual 

      McCall, Robert; McLaughlin, Shane B. (National Surface Transportation Safety Center for Excellence, 2015-08-24)
      This report describes the contents of the Roadway Epochs Database, which is a collection of tables providing indices for users to access vehicle data from the 100-Car and Second Strategic Highway Research Program (SHRP 2) ...
    • Rural Intersection Lighting Safety Analysis 

      Bhagavathula, Rajaram; Gibbons, Ronald B.; Terry, Travis N.; Edwards, Christopher J. (National Surface Transportation Safety Center for Excellence, 2017-08-03)
      Under the sponsorship of the National Surface Transportation Safety Center for Excellence (NSTSCE), this research studied the relationship between lighting level and the night-to-day (ND) crash ratio at rural intersections ...
    • 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 ...
    • Senior Mobility Awareness Symposium Brief 

      Antin, Jonathan F. (Virginia Tech. Virginia Tech Transportation Institute, 2013)
      Researchers at the Virginia Tech Transportation Institute (VTTI) hosted a symposium designed to increase awareness of the mobility challenges faced by seniors and offer state-of-the-art solutions to those individuals who ...
    • Strategies for Combating Drowsy Driving Using Adaptive Workload and Secondary Task Countermeasures 

      Llaneras, Robert; Meyer, Jason E.; Short, Maureen; Rayes, Freddy (National Surface Transportation Safety Center for Excellence, 2018-07-25)
      This study evaluated the effectiveness of alternative workload-based interventions intended to restore driver alertness following drowsy episodes. The study served as a proof of concept for varying the nature and onset of ...
    • Supporting CMV Driver Distraction Outreach Efforts: Letter Report Summary 

      Morgan, Justin F.; Flintsch, Alejandra Medina; Blanco, Myra; Hanowski, Richard J.; Fitchett, Vikki L.; Fitzgerald, Hollie E.; Radlbeck, Joshua (National Surface Transportation Safety Center for Excellence, 2015-04-08)
      The Federal Motor Carrier Safety Administration (FMCSA) CMV Driving Tips website (https://cms.fmcsa.dot.gov/safety/driver-safety/cmv-driving-tips-overview) is a source for information on safety and practical driving tips ...
    • A survey of light-vehicle driver education programs to determine the prevalence of curriculum on sharing the road with heavy vehicles: final report 

      Baker, Stephanie Ann; Schaudt, William A.; Freed, J. C.; Toole, Laura (Virginia Tech. Virginia Tech Transportation Institute, 2011-12-01)
      Light-vehicle driver education programs that contain content about heavy-vehicle operation may be helpful in reducing light-vehicle/heavy-vehicle interactions. However, it is unclear as to the extent of current state ...
    • A Survey of Motorcyclists: Data for Research Design and Instrumentation 

      Williams, Vicki Higginbotham; McLaughlin, Shane B. (Virginia Tech. Virginia Tech Transportation Institute, 2013-03-01)
      The results of a survey of 424 motorcyclists are presented in order to provide information for motorcycle safety research. Survey questions address topics related to rider demographics, riding experience (years, mileage, ...
    • Tips for Sharing the Road with Commercial Motor Vehicles: A Web-Based Approach 

      Dunn, Naomi J.; Baker, Stephanie Ann; Blanco, Myra (National Surface Transportation Safety Center for Excellence, 2016-01-11)
      This report documents the Tips for Sharing the Road with Commercial Motor Vehicles website (http://www.cmvroadsharing.org). The website was created by the National Surface Transportation Safety Center for Excellence to ...
    • Towards developing a US-EU common distracted driving taxonomy : updating a naturalistic driving data coding approach 

      Hanowski, Richard J. (Virginia Tech. Virginia Tech Transportation Institute, 2011-12-07)
      Naturalistic video data reduction is a process of identifying information from video and putting it into a format that can be analyzed. Developing a sufficiently detailed event coding scheme is critical to this process. ...
    • Transportation Research Today: The NSTSCE Quarterly Newsletter 

      Tidwell, Scott; Fitchett, Vikki L.; Blanco, Myra (National Surface Transportation Safety Center for Excellence, 2015-11-02)
      The National Surface Transportation Safety Center for Excellence (NSTSCE) newsletter, Transportation Research Today, was published quarterly from January 2014 to October 2014. The newsletter described NSTSCE research and ...
    • Undiagnosed Obstructive Sleep Apnea in Commercial Motor Vehicle Drivers: Application of STOP-Bang 

      Glenn, T. Laurel; Mabry, Jessica E.; Soccolich, Susan A.; Hickman, Jeff S. (National Surface Transportation Safety Center for Excellence, 2020-04-06)
      Although several studies have estimated the prevalence of obstructive sleep apnea (OSA) in the commercial motor vehicle (CMV) driver population, limitations such as small sample sizes and study samples that are not ...
    • Using Functional Classification to Enhance Naturalistic Driving Data Crash/Near Crash Algorithms 

      Sudweeks, Jeremy D. (2015-01-20)
      A persistent challenge in using naturalistic driving data is identifying events of interest from a large data set in a cost-effective manner. A common approach to this problem is to develop kinematic thresholds against ...
    • 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 ...
    • Video Magnification to Detect Heart Rate for Drivers 

      Sarkar, Abhijit; Doerzaph, Zachary R.; Abbott, A. Lynn (National Surface Transportation Safety Center for Excellence, 2017-11-13)
      Heart rate is a strong indicator of a person’s psychophysiological state. For this reason, many applications would benefit from the ability to measure noncontact heart rate. The present work describes a new procedure for ...
    • 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 ...
    • Weather Camera 

      Palmer, Matthew; Gibbons, Ronald B. (National Surface Transportation Safety Center for Excellence, 2019-11-18)
      Fog- and weather-related visibility reduction is a common cause of multiple-vehicle crashes. Large differential speeds and a tendency of vehicle operators to drive faster than is safe can lead to terrible crashes. Fog can ...
    • Work Zone Lighting’s Effect on Driver Visibility 

      Bhagavathula, Rajaram; Gibbons, Ronald B. (National Surface Transportation Safety Center for Excellence, 2019-06-05)
      Portable light towers are a significant source of glare to motorists entering a work zone. Although existing research has evaluated the effect of light tower orientation on visibility and glare, the effects of factors like ...