The current federal surface transportation law, Moving Ahead for Progress in the 21st Century Act (MAP-21), requires transportation agencies to use a performance-based approach to planning and programming transportation projects. Travel time reliability and congestion reduction are explicit goals of the act. As agencies work to meet these goals, the timely results of significant research on data and tools to evaluate reliability can help them better understand and predict the variability of travel time and its impact on congestion. To help transportation agencies integrate mobility and reliability performance measures into the transportation planning and programming process, a SHRP 2 research project on Incorporating Reliability Performance Measures into the Transportation Planning and Programming Processes (L05) has developed three reports: 1) Guide to Incorporating Reliability Performance Measures into the Transportation Planning and Programming Processes (Guide), 2) Guide to Incorporating Reliability Performance Measures into the Transportation Planning and Programming Processes: Technical Reference (Technical Reference), and 3) Incorporating Reliability Performance Measures into the Transportation Planning and Programming Processes (Final Report). This project brief provides an overview of these three reports. (Author/publisher)
Samenvatting