Performance monitoring is defined as the periodic measurement of progress toward explicit short and long run objectives, and the reporting of the results to decision makers to improve program performance. The Washington State Department of Transportation (WSDOT) should use performance monitoring to monitor conditions and trends in transportation on specific facilities and within specific geographic regions and the state as a whole. This report presents a logical framework for WSDOT to use in investigating the development of performance measures. It briefly describes the current status of WSDOT's development of performance monitoring systems. It investigates WSDOT needs, the uses WSDOT has for performance monitoring data, the types of data that can or should be collected and reported for these purposes, and the interactions required between WSDOT and other transportation providers and governmental agencies. Finally, the report outlines ongoing WSDOT research and data collection efforts and recommends directions for further research and analysis.