Components of the Intelligent Vehicle-Highway System (IVHS) are currently at various stages of research, development, and implementation. Several private firms are modifying products developed in Europe and Japan, or developing new systems to support their product development objectives. At the same time, the U.S. Department of Transportation (DOT) is supporting research and development (R&D), system architecture development, operational tests, institutional and policy projects, and deployment projects through the national IVHS program as a means of stimulating the development of systems that will meet institutional and consumer objectives.

Two major areas of IVHS development are Advanced Traveler Information Systems (ATIS) and Commercial Vehicle Operations (CVO). These types of systems will provide the primary means by which private and commercial vehicle drivers will interact with IVHS. Thus, determination of the system characteristics that will enhance acceptance and usability of these systems is critical to the success of the IVHS initiative. In recognition of this human factors challenge in developing ATIS and CVO systems, the Federal Highway Administration (FHWA) initiated the present project, which is being conducted to develop human factors guidelines for the design of ATIS and CVO systems. This project will address the impacts of driver interfaces, information type, behavioral factors, and user demographics on the development of specific information subsystems.

This working paper documents Task B of the present project, Identify Advanced Traveler Information Systems (ATIS) and Commercial Vehicle Operations (CVO) System Objectives and Performance Requirements. The goal of Task B is to define the transportation community's current conceptualization of ATIS and CVO, providing a baseline of information for subsequent tasks. Information was obtained from a literature review, conducted as the first task of the project, and by interviewing and surveying government and private representatives of the ATIS and CVO development community. The results of this report are intended to support future project work by:

• Providing basic information regarding the range of operational capabilities to be included in ATIS and CVO systems for use in the more specific definition of system functions and features during the conduct of Task C, Define Functions.
• Providing a survey of ATIS and CVO systems currently developed, or under development, in support of Task D, Comparable Systems Analysis.
• Providing a preliminary set of ATIS and CVO scenarios that can be further elaborated during the conduct of Task E, Task Analysis.
• Providing a summary of performance requirements currently identified by the transportation community for subsequent incorporation in project research.

The remainder of this working paper describes the methods and results of the Task B analyses. Section II. METHOD describes the interview participants, procedures and materials, and analyses. Section III. ATIS TECHNOLOGY OVERVIEW provides a description of ATIS architecture and assumptions adopted in conducting this task, and an overview of ATIS and CVO system capabilities. Section IV. DEVELOPMENT OBJECTIVES AND PERFORMANCE REQUIREMENTS identifies the performance requirements of ATIS and CVO systems associated with five general objectives. Section V. SCENARIO OVERVIEW describes the approach taken in developing the 12 private and 14 CVO scenarios included in this paper. Sections VI through IX describe the operational capabilities, projected benefits and performance requirements, and operational scenarios as they relate to private vehicle and CVO, for each of the four major ATIS subsystems: In-vehicle Routing and Navigation Systems (IRANS), In-vehicle Motor Services Information Systems (IMSIS), In-vehicle Signing Information Systems (ISIS), and In-vehicle Safety Advisory and Warning Systems (IVSAWS). Section X describes the operational capabilities, projected benefits and performance requirements, and operational scenarios as they relate to CVO-specific IVHS development.