SHRP 2 Reliability Program Brief: January 2011

TRB’s second Strategic Highway Research Program (SHRP 2) has released the latest version of its Reliability Program Brief, which summarizes recent progress within the Reliability area of SHRP 2. Reliability research in SHRP 2 addresses the root causes of unpredictable travel times by focusing on highway system operations. Travel time reliability, which is valued for many reasons, is compromised by unexpected congestion. Reducing this nonrecurring congestion can help transportation agencies improve travel time reliability even as travel demand grows.