The handbook, in its treatment of signs, pavement markings and signals, presents typical values or ranges of values used for implementing traffic control measures, as well as providing examples of contract plan sheets, specifications and work orders. With respect to signs, consideration is given to materials, equipment, installation, maintenance, vandalism, etc. The section on pavement markings includes materials, methods of application and application operations. Traffic signal design, operation, equipment, and maintenance are discussed, as are various types of signal systems.