Integrating Outcome Oriented Performance Measures into Traffic Signal Operations Business Processes

Deployment of improvements in signal systems are often constrained by a variety of issues. Some of these are technical, particularly the dependency of systems on the proper function of many different components. Other issues are institutional. This paper presents a view of the technical components based on the Open Systems Interconnection model that is tailored to specific aspects of signal systems, and discusses the business processes of signal systems deployment from a systems engineering perspective, as a framework for understanding how performance measures can be introduced as a means of connecting specific objectives with the appropriate use cases and audiences. An example is presented for the application of detector error checking from the perspective of a system built from the "bottom up" rather than the "top down".