TRB’s National Cooperative Highway Research Program (NCHRP) Web-Only Document 97: Guide to Effective Freeway Performance Measurement: Final Report and Guidebook examines the effective use of freeway performance measures in operating a freeway system and in meeting the information needs of a large spectrum of potential local, regional, and national users. The report includes detailed, step-by-step procedures for measurement and reporting of freeway performance. NCHRP Research Results Digest 312: Guide to Effective Freeway Performance Measurement explores the framework that was used to develop Web-Only Document 97.