TRB's National Cooperative Highway Research Program (NCHRP) Research Report 855: An Expanded Functional Classification System for Highways and Streets builds upon preliminary engineering of a design project, including developing the purpose and need. In particular, it provides additional contexts beyond urban and rural, facilitates accommodation of modes other than personal vehicles and adds overlays for transit and freight. Two case studies illustrating an application of the expanded system to actual projects are included. Accompanying the report is NCHRP Web-Only Document 230: Developing an Expanded Functional Classification System for More Flexibility in Geometric Design, which documents the methodology of NCHRP Research Report 855.
Table of Contents
|Modal Considerations and Accommodation||26-38|
|Application of the Expanded Functional Classification System||39-44|
|Case Study 1 - US 25/US 421/KY 418; Richmond Road (10.5 miles), Lexington, Fayette County, Kentucky||47-65|
|Case Study 2 - US 150; W. Broadway Avenue (0.73 mile), Louisville, Jefferson County, Kentucky||66-74|
|Case Studies - Lessons Learned||75-74|
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