79 research outputs found

    Integrated vehicle-based safety systems first annual report

    Full text link
    The IVBSS program is a four-year, two phase cooperative research program being conducted by an industry team led by the University of Michigan Transportation Research Institute (UMTRI). The program began in November 2005 and will continue through December 2009 if results from vehicle verification tests conducted in the second year of the program indicate that the prototype system meets its performance guidelines and is safe for use by lay drivers in a field operational test planned for July 2008. The decision to execute Phase II of the program will take place in December 2007. The goal of the IVBSS program is to assess the safety benefits and driver acceptance associated with a prototype integrated crash warning system designed to address rear-end, road departure and lane change/merge crashes on light vehicles and heavy commercial trucks. This report describes accomplishments and progress made during the first year of the program (November 2005-December 2006). Activities during the first year focused on system specification, design and development and construction of the prototype vehicles.National Highway Traffic Safety Administrationhttp://deepblue.lib.umich.edu/bitstream/2027.42/57183/1/99863.pd

    Safety Pilot Model Deployment: WSU Basic Safety Messages

    Get PDF
    The Safety Pilot Model Deployment (SPMD) study was run in the Ann Arbor, MI area and involved over 2,000 vehicles. The study goal was to pilot a connected-vehicle system that included roadside units (RSUs) fixed to specific intersections and vehicle-based communication units. Data were collected from RSUs as well as vehicles. Each vehicle was equipped with one of four unique device packages which provide a series of data elements which communicate the vehicle's location and motion. The packages are referenced as the Integrated Safety Device (ISD); Aftermarket Safety Device (ASD); Retrofit Safety Device (RSD) and Vehicle Awareness Device (VAD). More than 75 percent of the total equipped vehicles used a VAD, which is the most primitive device. Vehicles with VAD can only transmit the data being generated and collected by their host vehicle; they are not able to receive messages transmitted from other vehicles. They mainly transmit "here I am" messages while increasing the likelihood of vehicle-to-Vehicle (V2V) and vehicle-to-infrastructure (V2I) interactions. More detailed vehicle-based data came from vehicles equipped with ISD, ASD, and RSD packages with the ability to collect, receive and transmit. Those vehicles had more advanced safety features and they also collected video data files. This dataset contains data from the onboard wireless safety units (WSUs). This file primarily consists of GPS-based data elements and those that are obtained from the vehicle\u2019s Controller Area Network (CAN) Bus. Different brands of WSUs were used but all of the data were stored in one dataset. A series of data elements that present vehicle performance information and the state of a few of its components are also included

    Measures and Methods Used to Assess the Safety and Usability of Driver Information Systems

    Get PDF
    DTFH61-89-C-00044This report concerns in-car systems that may be used to present navigation, hazard warning, vehicle monitoring, traffic, and other information to drivers in cars of the future. It describes in detail measurements researchers have made to determine if those systems are safe and easy to use. Measures that appear most promising for safety and usability tests of driver information systems include the standard deviation of lane position, speed, speed variance, and the mean and frequency of driver eye fixations to displays and mirrors. In some cases, laboratory measures (errors, etc.) may also be useful. Also of interest are time-to-collision and time-to-line crossing, although hardware for readily measuring them in real time is not available. Of lesser utility are workload estimates (SWAT, TLX). Secondary task measures and physiological measures are very weak predictors of safety and usability. To assess usability, application-specific measures (e.g., the number of wrong turns made in using a navigation system) should be collected

    Missouri 2004

    Full text link
    http://www.umtri.umich.edu/tdc/codebook.htmlhttp://deepblue.lib.umich.edu/bitstream/2027.42/13905/2/97669A03.pd

    Michigan 2004

    Full text link
    http://www.umtri.umich.edu/tdc/codebook.htmlhttp://deepblue.lib.umich.edu/bitstream/2027.42/13904/2/32767A31.pd

    FARS 2004- Version 13-Oct-05. Annual report file

    Full text link
    http://www.umtri.umich.edu/tdc/codebook.htmlhttp://deepblue.lib.umich.edu/bitstream/2027.42/13901/2/43157A43.pd

    NASS CDS 2004 - version 15-Sep-05

    Full text link
    http://www.umtri.umich.edu/tdc/codebook.htmlhttp://deepblue.lib.umich.edu/bitstream/2027.42/13902/2/88992A20.pd

    Advanced Crash Avoidance Technologies Program: Annual Report of the Volvo-Ford-UMTRI Project

    Full text link
    Annual Report January-December 2007The Advanced Crash Avoidance Technologies program is a two-year cooperative research program in which Volvo Cars and its partners are one of four industry-led teams working on developing methodologies for estimating the effectiveness of advanced safety technologies intended to assist drivers in avoiding crashes. The program began in January 2007 and will continue through 2008. The aim of this Volvo-led project within the context of the ACAT program, is to develop the general principles of a safety impact methodology (SIM) tool that can be used for driving scenario-based benefit calculations over different phases of a lane departure crash sequence, and to evaluate the potential impact that emerging technologies may have on lane departures crash sequence by a single vehicle. Three new safety technologies from Volvo Cars designed to address lane departure crash sequences are considered for purposes of developing the SIM tool. This report describes the accomplishments and progress made during the first year of the project (January-December 2007). Activities in the first year focused on the development of the SIM tool, assessments of the safety areas and specifications for the candidate technologies, and definition of tests that would give the needed information about these technologies.National Highway Transportation Safety Administrationhttp://deepblue.lib.umich.edu/bitstream/2027.42/98974/1/102496.pd

    Vehicle Classification and Equipment Type Crash Data and Market Survey

    Get PDF
    DTNH22-15-A-00050NHTSA evaluates market trends and crash data to understand how FMVSS affect motor vehicle safety. This report describes a crash data and market survey of five vehicle and equipment categories that all have unique relevance in the FMVSS: (1) large passenger vehicles, trucks, and SUVs excluded from FMVSS No. 208 air bag requirements (Class 2B); (2) limousines over 10,000 lbs. GVWR; (3) \u201centertainer\u201d buses and motor homes over 26,000 lbs. GVWR; (4) medium buses that carry 11 or more occupants; and (5) motorcycle helmets. A market survey was conducted for all five vehicle and equipment categories, while the crash data analysis was conducted only for Class 2B large passenger vehicles of GVWR 8,500 lbs. to 10,000 lbs

    Safety Implications of Various Truck Configurations, Volume III: Summary Report

    Get PDF
    DTFH61-85-C-00091The purpose of this study is to examine changes to size and weight limits in order to determine their effects on the designs and configurations of heavy vehicles, the performance capabilities of the resulting vehicles, and the ensuing safety implications thereof. The summary report provides results and findings from an analytical investigation of the influences of size and weight limits on trucks. In an analytical sense, pavement loading rules and bridge formulas are the inputs to the analyses and vehicle performances are the outputs. Ultimately, the work shows the manner in which size and weight rules influence the safety-related performance of vehicles designed to increase productivity. By treating a number of projected size and weight scenarios, the study has developed a basis for generalizing to sets of principles that can be used in evaluating the possible safety consequences of changes in size and weight regulations
    • …
    corecore