United States Department of Transportation
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Traffic Signal Program Handbook
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2023-04-01
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[PDF-4.85 MB]
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Abstract:A programmatic approach to traffic control systems management and operations strategically links business processes, workforce, systems and technology, and management decisions to objectives that are consistent with the goals of the organization. The purpose of this handbook is to advance the use of objectives and performance-based approaches to traffic signal management and to improve design, operations, and maintenance practices, resulting in increased safety, mobility, and efficiency for all users. This handbook is divided into two parts. Part I focuses on how to develop an effective traffic signal program by describing the elements of a traffic signal program (Chapter 2) and how to assess and improve the level of maturity of the program’s capabilities (Chapter 3). Part II focuses on the systems and technologies associated with a traffic signal program, specifically the systems and technologies agencies may want to deploy to achieve various program objectives. The intent of part II is to provide insight and guidance to allow traffic signal program managers and operators to make decisions related to the types of systems and technologies they need to install at signalized intersections. Part II begins with a discussion of the Systems Engineering process (Chapter 4) and illustrates its roles in the identification, selection, and design of traffic signal systems and technologies. Part II next discusses the basic systems and technologies needed to achieve good basic service at the intersection level (Chapter 5), and then discusses how higher program objectives can be achieved through improved detection (Chapter 6), communications (Chapter 7), system control (Chapter 8), and, finally, advanced control (Chapter 9).
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