Browsing National Surface Transportation Safety Center for Excellence Reports (NSTSCE, VTTI) by Issue Date
Now showing items 1-20 of 121
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Fatigue analyses: from 16 months of naturalistic commercial motor vehicle driving data
(National Surface Transportation Safety Center for Excellence, 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 ... -
Development and validation of a luminance camera: final report
(National Surface Transportation Safety Center for Excellence, 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. -
Commercial motor vehicle health and fatigue study: final report
(National Surface Transportation Safety Center for Excellence, 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 ... -
Development and evaluation of a naturalistic observer rating of drowsiness protocol : final report
(National Surface Transportation Safety Center for Excellence, 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 ... -
Method for identifying rural, urban, and interstate driving in naturalistic driving data : final report
(National Surface Transportation Safety Center for Excellence, 2009-03-12)By employing the functionality of GIS, code was written which allows for an automated process to compare the GPS data recorded in the naturalistic driving data with geographic map data from the U.S. Census Bureau and road ... -
Modeling 100-car safety events: a case-based approach for analyzing naturalistic driving data: final report
(National Surface Transportation Safety Center for Excellence, 2009-09-30)This study developed an integrated framework for modeling the safety outcomes of naturalistic driving studies and addressed several critical methodological issues. The results indicate a certain level of discrepancy between ... -
100-car reanalysis: summary of primary and secondary driver characteristics
(National Surface Transportation Safety Center for Excellence, 2010-08-27)This project's goal was to build a complete trip file inventory for the 100-Car data set... Data points collected for each file include Driver ID (with new IDs created as new secondary drivers were found), Ambient Lighting, ... -
Identification of factors related to violation propensity: mining the data of the Franklin intersections
(National Surface Transportation Safety Center for Excellence, 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 ... -
Luminance metrics for roadway lighting
(National Surface Transportation Safety Center for Excellence, 2011-03-25)The focus of the current study is the comparison of multiple contrast metrics... The images of pedestrians from a previous nighttime research study were used for analysis. The pedestrians were clothed in both denim and ... -
In-vehicle device acquisition and usage in personal vehicles : commercial versus non-commercial driver's license holders
(National Surface Transportation Safety Center for Excellence, 2011-03-28)A survey was administered to 1,524 Virginia Tech faculty, staff, and students and Blacksburg Transit drivers in an effort to differentiate between commercial driver's license holders (72 of the respondents) and "regular" ... -
A policy review of the impact existing privacy principles have on current and emerging transportation safety technology
(National Surface Transportation Safety Center for Excellence, 2011-05-12)Ensuring the safety of travelers by the use of technology, and protecting the personal information that is collected for those applications, is an important transportation policy concern. Perceptions of an abuse of privacy ... -
Identifying high-risk commercial truck drivers using a naturalistic approach
(National Surface Transportation Safety Center for Excellence, 2011-06-30)The current report investigated the 'high-risk' driver concept, and predictors associated with group membership, in a sample of 200 CMV drivers using naturalistic data from the Drowsy Driver Warning System Field Operational ... -
Geospatial analysis of high-crash intersections and rural roads using naturalistic driving data : final report
(National Surface Transportation Safety Center for Excellence, 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 ... -
A survey of light-vehicle driver education programs to determine the prevalence of curriculum on sharing the road with heavy vehicles: final report
(National Surface Transportation Safety Center for Excellence, 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 ... -
Towards developing a US-EU common distracted driving taxonomy : updating a naturalistic driving data coding approach
(National Surface Transportation Safety Center for Excellence, 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. ... -
Assessment of the impact of color contrast in the detection and recognition of objects in a road environment: final report
(National Surface Transportation Safety Center for Excellence, 2011-12-16)With the development of new light sources, options for the color and spectral output of a luminaire are wider than for traditional light sources. This can impact visibility as the spectral output of a light source may have ... -
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
(National Surface Transportation Safety Center for Excellence, 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 ... -
Market Guide to Fleet Telematics Services: Creating a Consumer's Guide to Currently Available Aftermarket Solutions
(National Surface Transportation Safety Center for Excellence, 2012-12-21)This report documents an effort to review the currently available, aftermarket telematics solutions. The project involved: (a) a survey of the current telematics market; (b) a review of the available telematics systems; ... -
Senior Mobility Awareness Symposium Brief
(National Surface Transportation Safety Center for Excellence, 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 ... -
Distraction Index Framework: Final Report
(National Surface Transportation Safety Center for Excellence, 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 ...
