Browsing Virginia Tech Transportation Institute (VTTI) by Issue Date
Now showing items 1-20 of 532
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Development of models for detection of automobile driver impairment
(Virginia Tech, 1985-08-05)Two of the leading causes of automobile accidents are driver impairment due to alcohol and drowsiness. Apparently, a relatively large percentage of these accidents occur because drivers are unaware of the degree to which ... -
Attentional demand evaluation for an automobile moving-map navigation system
(Virginia Tech, 1987)A study was undertaken to test and evaluate the human factors design aspects of an automobile moving-map navigation system. The primary objective of the study was to assess the driver attentional demand required by the ... -
Development of Human Factors Guidelines for ATIS and CVO Identify Strengths and Weaknesses of Alternative Information Display Formats
(United States. Federal Highway Administration, 1993-10)This report is one of a series produced as part of a contract designed to develop precise, detailed, human factors design guidelines for Advanced Traveler Information Systems (ATIS) and Commercial Vehicle Operations (CVO). ... -
TravTek Evaluation Task C3 - Camera Car Study
(United States. Federal Highway Administration, 1995-06)The goal of the TravTek Camera Car Study was to furnish a detailed evaluation of driving and navigation performance, system usability, and safety for the TravTek system. To achieve this goal, an instrumented "camera car" ... -
Review and evaluation of models that produce trip tables from ground counts
(Virginia Center for Transportation Innovation and Research, 1996-02)This research effort was motivated by the desires of planning agencies to seek alternative methods of deriving current or base year Origin-Destination (O-D) trip tables without adopting conventional O-D surveys that are ... -
Development of Human Factors Guidelines for Advanced Traveler Information Systems and Commercial Vehicle Operations: Literature Review
(United States. Federal Highway Administration, 1996-11)The purpose of Task A was to conduct a literature review of human factors-applicable articles associated with Advanced Traveler Information Systems (ATIS) and ATIS-related commercial vehicle operations (CVO) systems. ... -
Application of Magnetorheological Dampers for Vehicle Seat Suspensions
(Virginia Tech, 1997-12-03)This study evaluates and provides solutions to the problem of poor subjective feel of seat suspensions that employ magnetorheological (MR) dampers and skyhook control. An Isringhausen seat suspension that had been modified ... -
On-line Traffic Signalization using Robust Feedback Control
(Virginia Tech, 1997-12-18)The traffic signal affects the life of virtually everyone every day. The effectiveness of signal systems can reduce the incidence
of delays, stops, fuel consumption, emission of pollutants, and accidents. The problems ... -
A Method to Enhance the Performance of Synthetic Origin-Destination (O-D) Trip Table Estimation Models
(Virginia Center for Transportation Innovation and Research, 1998-01)The conventional methods of determining origin-destination (O-D) trip tables involve elaborate surveys, e.g., home interviews, that require considerable time, staff, and funds. To overcome this drawback, a number of ... -
Development of Human Factors Guidelines for Advanced Traveler Information Systems and Commercial Vehicle Operations: Display Channels
(United States. Federal Highway Administration, 1999-12)Three experiments were conducted in a driving simulator to evaluate effects of in-vehicle message modality and message format on comprehension and memory for younger and older drivers. Visual icons and text messages were ... -
Development of Human Factors Guidelines for Advanced Traveler Information Systems and Commercial Vehicle Operations: ATIS Function Transitions
(United States. Federal Highway Administration, 1999-12)The objective of the first experiment reported below was to measure the cognitive demands associated with transitioning across Advanced Traveler Information System (ATIS) functions. This required the development of both ... -
Effects of In-Vehicle Information Systems (IVIS) Tasks on the Information Processing Demands of a Commercial Vehicle Operations (CVO) Driver
(Virginia Tech, 1999-12-10)This study was performed with two main goals in mind. The first goal was to understand and predict "red-lines" and "yellow-lines" in terms of what the CVO driver can process without hindering the primary task of driving. ... -
Phoenix Metropolitan Model Deployment Initiative Evaluation Report
(United States. Federal Highway Administration, 2000-04)This report presents the evaluation results of the Phoenix, Arizona Metropolitan Model Deployment Initiative (MMDI). The MMDI was a three-year program of the Intelligent Transportation Systems (ITS) Joint Program Office ... -
Metropolitan Model Deployment Initiative San Antonio Evaluation Report
(United States. Department of Transportation, 2000-05)This report presents the evaluation results of the San Antonio, Texas Metropolitan Model Deployment Initiative (MMDI). The MMDI was sponsored by the US Department of Transportation and focused on aggressive deployment of ... -
The Impact of Local/Short Haul Operations on Driver Fatigue
(Virginia Tech, 2000-05-23)Massie, Blower, and Campbell (1997) indicate that trucks that operate less than 50 miles from the vehicle's home base comprise 58% of the trucking industry. However, despite being the largest segment, research involving ... -
Improvement of Conspicuity of Trailblazing Signs: Phase III-Evaluation of Fluorescent Colors
(Virginia Center for Transportation Innovation and Research, 2001-02)This report represents a Phase III effort to design and evaluate a new sign design for incident route trailblazing. The colors evaluated were fluorescent coral, fluorescent purple, fluorescent yellow-green, and non-fluorescent ... -
A Comparison of CORSIM and INTEGRATION for the Modeling of Stationary Bottlenecks
(Virginia Tech, 2001-05-09)Though comparisons of simulation models have been conducted, few investigations have examined in detail the logical differences between models. If the output measures of effectiveness are to be interpreted correctly, it ... -
Truck Modeling Along Grade Sections
(Virginia Tech, 2001-05-11)This research effort first characterizes the trucks traveling along US highways by analyzing data from Interstate 81. It is hypothesized that I-81 is typical of US highways and thus can provide some insight into typical ... -
Deploying an ITS Warning System for No-Passing Zones on Two-Lane Rural Roads
(Virginia Tech, 2001-06-28)A new safety application, as part of ITS Advanced Rural Transportation System (ARTS), has been developed to be deployed on a two-lane rural road (Route 114), in Southwest Virginia. The route segment under study is subject ... -
Impact of Sleeper Berth Usage on Driver Fatigue, Final Project Report
(United States. Federal Motor Carrier Safety Administration, 2002)The goal of this project was to assess the impact that sleeper berth usage has on operator alertness. Forty-seven males and nine females participated in this study, constituting 13 teams and 30 single drivers. All drivers ...
