Development of Human Factors Guidelines for Advanced Traveler Information Systems and Commercial Vehicle Operations: Task Analysis of ATIS/CVO Functions

7358971996Technical report; June - November 1993Joseph Moyer, HSR-30PDFTech ReportFHWA-RD-95-176DTFH61-92-C-00102Advanced driver information systemsAdvanced traveler information systemsIntelligent transportation systemsCommercial vehicle operationsADVANCED TRAVELER INFORMATION SYSTEMATISCOMMERCIAL VEHICLE OPERATIONSCVOINTELLIGENT VEHICLE HIGHWAY SYSTEMSIVHSUnited States. Joint Program Office for Intelligent Transportation SystemsWheeler, William A.Lee, J.Raby, M.Kinghom, R. A.Bittner, A.McCallum, M.Battelle Human Factors Transportation CenterNTL-INTELLIGENT TRANSPORTATION SYSTEMS-Traveler InformationNTL-INTELLIGENT TRANSPORTATION SYSTEMS-INTELLIGENT TRANSPORTATION SYSTEMSNTL-INTELLIGENT TRANSPORTATION SYSTEMS-Driver Assistance Systems (Vehicles)NTL-INTELLIGENT TRANSPORTATION SYSTEMS-Commercial Vehicle OperationsIntelligent Transportation Systems Joint Program Office;Federal Highway AdministrationThis working paper documents Task E of the present project, Task Analyses for Advanced Traveler Information Systems (ATIS) and Commercial Vehicle Operations (CVO) systems. The goal of Task E is to conduct detailed analyses of the influence of using ATIS on driving tasks for both private and commercial vehicle operators. The task analyses specifying the tasks to be performed by the users as well as the information displayed in the ATIS (including IRANS, IMSIS, ISIS, and IVSAWS) are based on scenarios developed from previous project tasks. Information for the task analysis was obtained from a review of the literature, observations, and interviews of drivers and dispatchers using prototype and first generation operational systems. The report organizes the tasks people and systems do while driving into three usable formats: (1) a graphical representation of the interactions that take place between driving and ATIS/CVO functions; (2) a diagram (i.e., an Operational Sequence Diagram [OSD]) of the sequence of task actions, the types of tasks involved, and the relationship between various human and non-human parts of the system; and (3) a description of each task in terms of its purpose, initiating conditions, task type, and performance considerations. General characteristics and performance considerations are examined for four types of tasks: setup, bridging, decision-making, and integrated. A summary of research issues and additional research needs are identified