CHAPTER 2:
OVERVIEW OF THE ADVANCED TRAVELER INFORMATION SYSTEM (ATIS) SUBSYSTEMS AND FUNCTIONS
Components of the Intelligent Transportation
System (ITS) are currently at various stages of research, development, and implementation.
Numerous 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. DOT is supporting research and development (R&D),
system architecture development, operational tests, institutional and policy
projects, and deployment projects through the national ITS program, as a means
of stimulating the development of systems that will meet institutional and consumer
objectives.
Two major areas of ITS development
are ATIS and CVO. These types of systems will provide the primary means by which
private and commercial vehicle drivers will interact with ITS. Thus, determination
of the system characteristics that will enhance acceptance and usability of
these systems is critical to the success of the ITS 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 has addressed the impact of driver interfaces, information
type, behavioral factors, and user demographics on the development of specific
information subsystems.
Overview of Advanced Traveler Information Systems.
| SUBSYSTEM | FUNCTIONAL CHARACTERISTICS |
| Routing and Navigation | Trip planning |
| Multi-mode travel coordination and planning | |
| Predrive route and destination selection | |
| Dynamic route selection | |
| Route guidance | |
| Route navigation | |
| Automated toll collection | |
| CVO-specific (route scheduling) | |
| Motorist Services | Broadcast services/attractions |
| Services/Attractions directory | |
| Destination coordination | |
| Message transfer | |
| Safety/Warning | Immediate hazard warning |
| Road condition information | |
| Automatic aid request | |
| Manual aid request | |
| Vehicle condition monitoring | |
| CVO-specific (cargo and vehicle monitoring) | |
| Augmented Signage Information | Roadway guidance sign information |
| Roadway notification sign information | |
| Roadway regulatory sign information | |
| CVO-specific (road restriction information) | |
| Commercial Vehicle Operations (CVO)-Specific | Fleet resource management |
| Dispatch | |
| Regulatory administration | |
| Regulatory enforcement |
The above table summarizes the subsystems and functions associated with ATIS/CVO. More detailed summaries of each subsystem are provided by clicking below.
Capabilities of Routing and Navigation Functions
Capabilities of Motorist Services Functions
Capabilities of Safety/Warning Functions