This Interim Technical Bulletin recommends procedures for conducting Life-Cycle Cost Analysis (LCCA) of pavements, provides detailed procedures to determine work zone user costs, and introduces a probabilistic approach to account for the uncertainty associated with LCCA inputs.

"TRB's National Cooperative Highway Research Program (NCHRP) Report 523: Optimal Timing of Pavement Preventive Maintenance Treatment Applications describes a methodology for determining the optimal timing for the application of preventive maintenance treatments to flexible and rigid pavements. NCHRP Report 523 also presents the methodology in the form of a macro-driven Microsoft Excel Visual Basic Application--designated OPTime"--Publisher's description.

This collection contains 22 peer-reviewed papers on climatic effects on pavement and geotechnical infrastructure presented at the 2013 International Symposium on Climatic Effects on Pavement and Geotechnical Infrastructure, held in Fairbanks, Alaska, August 4-7, 2013.