Research Results Digest National Cooperative Highway Research Program

TRB's National Cooperative Highway Research Program (NCHRP) Research Results Digest 350: Continuing Project to Synthesize Information on Highway Problems is a digest of the progress and status of NCHRP Project 20-5, "Synthesis of Information Related to Highway Problems."

"TRB's National Cooperative Highway Research Program (NCHRP) Research Results Digest 396: Approach to Level-of-Service Target Setting for Highway Assets identifies methodologies and provides guidance for selecting level-of-service targets for maintaining and operating highway assets. In the past, targets have often been established based on the expert opinion of individuals and have not necessarily followed a systematic process. In addition to the digest, the report includes: The contractor's guide to level-of-service target setting for highway assets, The contractor's final report for NCHRP Project 14-25, An Excel spreadsheet tool"--Publisher's description.