Which AASHTO Green Book table includes information about stopping sight distance?

• A. Table 3-2
• B. Table 3-14
• C. Table 3-1
• D. Table 3-10

Answer: (C)

The AASHTO Green Book, formally known as the "A Policy on Geometric Design of Highways and Streets," provides a wealth of information critical for highway design, including tables that address stopping sight distance. The specific table that includes information about stopping sight distance is Table 3-1. This table outlines the necessary sight distances required for different design speeds, helping engineers understand how far ahead drivers need to see in order to stop safely when encountering obstacles or adverse conditions.

Stopping sight distance is a fundamental concept in transportation engineering as it directly affects the safety and operation of roadways. Properly determining this distance is essential for ensuring that vehicles can stop in time to avoid collisions, particularly on roads where traffic speeds are higher.

Other tables, such as Table 3-2, Table 3-10, and Table 3-14, focus on different aspects of geometric design and do not specifically provide stopping sight distance values. Understanding the details found in each of these tables allows for informed decision-making and effective roadway design that emphasizes driver safety and operational efficiency.