FOREWORD
This report is one of a series reports
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). The contractual effort consists of three phases: analytic,
empirical, and integration. This report is a product of the empirical phase.
The empirical phase will also address topics such as: ATIS function transition,
display channels, multi-modality displays, CVO driver fatigue, display formats
and workload, and head-up displays. Among the analytic topics discussed in the
series are functional description of ATIS/CVO, comparable systems analysis,
task analysis of ATIS/CVO functions, alternate systems analysis, identification
and exploration of driver acceptance, and definition and prioritization of research
studies.
This study is part of the empirical
phase of this ATIS/CVO guidelines development effort and is one of a series
of investigations designed to provide supporting rationale for the in-vehicle
design guidelines. The research reported in this document investigated the effects
of varying information accuracy regarding traffic conditions, in both familiar
and unfamiliar traffic networks, on driver performance, use and acceptance of
in-vehicle information systems.
Copies of this report can be obtained
through the Research and Technology Report Center, 9701 Philadelphia Court,
Unit Q, Lanham, Maryland 20706, telephone: (301) 577-0818, fax: (301) 577-1421,
or the National Technical Information Service (NTIS), 5285 Port Royal Road,
Springfield, Virginia 22161, telephone: (703) 487-4650, fax: (703) 321-8547.
A. George Ostensen, Director
Office of Safety and Traffic
Operations Research and Development
NOTICE
This document is disseminated under
the sponsorship of the Department of Transportation in the interest of information
exchange. The United States Government assumes no liability for its content
or use thereof. This report does not constitute a standard, specification, or
regulation.
The United States Government does not endorse products or manufacturers. Trade and manufacturers' names appear in this report only because they are considered essential to the object of the document.
| 1. Report No.
FHWA-RD-96-145 |
2. Government Accession No. | 3. Recipient's Catalog No. | |
| 4. Title
and Subtitle
DEVELOPMENT OF HUMAN FACTORS GUIDELINES FOR ADVANCED TRAVELER INFORMATION SYSTEMS (ATIS) AND COMMERCIAL VEHICLE OPERATIONS (CVO): THE EFFECTS OF INACCURATE TRAFFIC INFORMATION ON DRIVER BEHAVIOR AND ACCEPTANCE OF AN ADVANCED IN-VEHICLE TRAVELER INFORMATION SYSTEM |
5. Report Date February 1998 |
||
| 7. Author(s)
B.H. Kantowitz, R.J. Hanowski, & S.C. Kantowitz |
8. Performing Organization Report No. | ||
| 9.
Performing Organization Name and Address
Battelle Human Factors Transportation Center 4000 NE 41st Street Seattle, WA 98105 |
10. Work
Unit No. (TRAIS)
3B2C1012 |
||
| 11. Contract
or Grant No.
DTFH61-92-C-00102 |
|||
| 12.
Sponsoring Agency Name and Address
Office of Safety and Traffic Operations R&D Federal Highway Administration 6300 Georgetown Pike McLean, VA 22101-2296 |
13. Type
of Report and Period Covered
Technical Report February 1995 - November 1996 |
||
| 14. Sponsoring Agency Code | |||
| 15. Supplementary
Notes
Contracting Officer's Technical Representative (COTR): Joe Moyer, HSR-30, Thomas Granda, SAIC |
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| 16. Abstract
How reliable must traffic information be for motorists to trust and accept such advice? This study provides data to aid the designer of Advanced Traveler Information Systems (ATIS) in selecting an appropriate level of system accuracy. The Battelle Route Guidance Simulator was used to study: (1) the effects of information accuracy, and (2) familiarity of the driving environment on objective and subjective indices of driver performance and opinion. The simulator provided real-time information and traffic video. Information was either 100 percent, 71 percent, or 43 percent accurate. Drivers experienced either Seattle and its environs or an artificial setting that was topologically matched to Seattle. Results showed that while 100 percent accurate information yielded best driver performance and subjective opinion, information that was 71 percent accurate was still accepted and used. But information that was 43 percent accurate produced powerful decrements in performance and opinion. Simulated ATIS information was not used as effectively in the familiar Seattle setting. Driver trust decreased with inaccurate information but recovered, although not always fully, with subsequent accurate information. |
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| 17. Key
Words
ATIS, ITS, Traffic Information, Trust |
18. Distribution
Statement
No Restrictions. This document is available to the public through the National Technical Information Service, Springfield, Virginia, 22161. |
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| 19. Security Classif.
(of this report)
Unclassified |
20. Security Classif.
(of this page)
Unclassified |
21. No. of Pages
27 |
22. Price |
Form DOT F 1700.7 (8-72)
Reproduction of completed page authorized