Which tables will you use to find storage length for the 85th percentile?

Which tables will you use to find storage length for the 85th percentile?

• A. Table 9-20 and 9-22
• B. Table 9-22 and 9-23
• C. Table 9-21 and 9-23
• D. Table 9-24 and 9-25

Answer: (B)

To determine the storage length for the 85th percentile, it is essential to reference specific tables that provide the necessary data related to traffic flow and accident probability. In this case, the chosen tables contain information relevant to vehicle storage lengths and turn lane requirements based on various traffic conditions. Table 9-22 specifically focuses on the storage lengths needed for turn lanes at intersections, which is crucial for assessing the space required for the 85th percentile queue length. It compiles empirical data, allowing engineers to estimate the appropriate length based on the observed traffic behavior. Table 9-23 complements this by offering additional data about storage lengths but focuses on various traffic volumes and vehicle types that impact storage requirements. By utilizing both tables, you can significantly refine your understanding of how many vehicles are likely to occupy a storage lane at peak conditions. Thus, using both Table 9-22 and Table 9-23 enables you to accurately assess and calculate the expected storage length for the 85th percentile, ensuring that traffic flow is optimized and that adequate space is provided for vehicles at turning movements.

To determine the storage length for the 85th percentile, it is essential to reference specific tables that provide the necessary data related to traffic flow and accident probability. In this case, the chosen tables contain information relevant to vehicle storage lengths and turn lane requirements based on various traffic conditions.

Table 9-22 specifically focuses on the storage lengths needed for turn lanes at intersections, which is crucial for assessing the space required for the 85th percentile queue length. It compiles empirical data, allowing engineers to estimate the appropriate length based on the observed traffic behavior.

Table 9-23 complements this by offering additional data about storage lengths but focuses on various traffic volumes and vehicle types that impact storage requirements. By utilizing both tables, you can significantly refine your understanding of how many vehicles are likely to occupy a storage lane at peak conditions.

Thus, using both Table 9-22 and Table 9-23 enables you to accurately assess and calculate the expected storage length for the 85th percentile, ensuring that traffic flow is optimized and that adequate space is provided for vehicles at turning movements.