Where can you find information about auxiliary lanes at intersections according to AASHTO?

• A. AASHTO Green Book
• B. AASHTO Blue Book
• C. Highway Safety Manual
• D. Traffic Engineering Handbook

Answer: (A)

The AASHTO Green Book is the key reference for geometric design of highways and streets. It contains comprehensive guidelines that include information on many aspects of roadway design, including auxiliary lanes at intersections. Auxiliary lanes are added lanes that help facilitate traffic flow by allowing vehicles to speed up or slow down when merging, turning, or entering/exiting the roadway.

The guidelines in the Green Book provide necessary design criteria, dimension standards, and operational considerations, ensuring that roadway intersections function efficiently and safely. It serves as the definitive resource for civil engineers designing roadway systems, making it the appropriate source for locating detailed information on auxiliary lanes.

Other resources, such as the AASHTO Blue Book, the Highway Safety Manual, and the Traffic Engineering Handbook, focus on different aspects of transportation and traffic engineering, but do not provide the same level of detail regarding geometric design principles specific to intersections and auxiliary lanes.