NCHRP 15-52, Developing a Context-Sensitive Functional Classification System for More Flexibility in Geometric Design

The objective of this research is to identify potential improvements to the traditional functional classification system to better incorporate the context, user needs, and functions of the roadway facility. The potential improvements should lead to a flexible framework that can be used by planners and designers in the development of optimal geometric design solutions. The research will investigate existing uses of functional classification and identify new trends and efforts both nationally and internationally. Best practices will be identified and a new approach will be proposed for acceptance by AASHTO and other transportation agencies.