Which book provides information on traffic signal operations?

• A. HCM
• B. Traffic Engineering Manual
• C. Urban Transportation Planning
• D. Transportation Research Board

Answer: (A)

The Highway Capacity Manual (HCM) is a critical resource for understanding traffic operations, including traffic signal operations. It provides methodologies for evaluating the capacity and quality of service of various transportation facilities, including signals. The HCM encompasses principles related to signal timing, optimization of traffic flow at intersections, and performance measures for traffic signals. This manual is widely utilized by traffic engineers to analyze and improve the effectiveness of signalized intersections, making it directly relevant to the question concerning traffic signal operations.

Other books, while relevant to transportation engineering, might focus on broader themes or different aspects of transportation planning and analysis. The Traffic Engineering Manual offers practical guidelines for traffic engineering solutions but may not delve as deeply into the specific metrics and methodologies for signal operations as the HCM does. Urban Transportation Planning focuses more on the overall planning processes for urban transport systems and might not emphasize detailed signal operation metrics. The Transportation Research Board publishes a variety of reports and papers but does not serve as a comprehensive manual for traffic signal operations like the HCM.