This report is one of a series 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 analytic phase. Among the other analytic topics discussed in the series are ATIS and CVO system objectives and performance requirements, comparable systems analysis, ATIS/CVO functions, task analysis, alternate systems analysis, driver acceptance, identification and exploration, and definition and prioritization of research studies. This report identifies information display format alternatives for in-vehicle devices for both private and CVO applications and presents a set of human factors design tools designers can use to develop safer and more effective ATIS displays. Also reported are research issues still requiring attention in order to further the goal of this project and to develop useful information format guidelines.