This report from the second Strategic Highway Research Program (SHRP 2), which is administered by the Transportation Research Board of the National Academies, focuses on improving the ability of highway agencies to design and construct long-lasting highway projects with minimal disruption to the traveling public.

"TRB's second Strategic Highway Research Program (SHRP 2) S2-R23-RR-1: Using Existing Pavement in Place and Achieving Long Life describes a procedure for identifying when existing pavements can be used in place as part of the rehabilitation solution and the methods necessary to incorporate the original material into the new pavement structure while achieving long life."--Publisher description.

TRB's second Strategic Highway Research Program (SHRP 2) Report S2-R23-RW-2: Guide to Using Existing Pavement in Place and Achieving Long Life provides guidance for selecting, designing, and constructing long-life pavements using existing pavement structure. The guide is intended to complement the design tools developed by SHRP 2 Report S2-R23-RR-1: Using Existing Pavement in Place and Achieving Long Life.

This book gathers the proceedings of an international conference held at Empa (Swiss Federal Laboratories for materials Science and Technology) in Dübendorf, Switzerland, in July 2020. The conference series was established by the International Society of Maintenance and Rehabilitation of Transport Infrastructure (iSMARTi) for promoting and discussing state-of-the-art design, maintenance, rehabilitation and management of pavements. The inaugural conference was held at Mackenzie Presbyterian University in Sao Paulo, Brazil, in 2000. The series has steadily grown over the past 20 years, with installments hosted in various countries all over the world. The respective contributions share the latest insights from research and practice in the maintenance and rehabilitation of pavements, and discuss advanced materials, technologies and solutions for achieving an even more sustainable and environmentally friendly infrastructure.

Experimental composite pavements were constructed at MnROAD in Minnesota and the University of California Pavement Research Center at Davis, where the pavements were instrumented and monitored under climate and heavy traffic loadings. A composite pavement consisting of HMA over jointed plain concrete also was constructed in the field by the Illinois Tollway north of Chicago. At the Tollway, extensive field surveys were performed on 64 sections of the two types of composite pavements. This project also evaluated, improved, and further validated applicable structural, climatic, material, and performance prediction models, and design algorithms that are included in the AASHTO MEPDG and DARWin-ME, CalME, NCHRP 1-41 reflection cracking, NCHRP 9-30A rutting, and the Lattice bonding model. The current DARWin-ME overlay design procedure for HMA/PCC and a special R21 version of the Mechanistic-Empirical Pavement Design Guide (MEPDG [v.

This report from the second Strategic Highway Research Program (SHRP 2), which is administered by the Transportation Research Board of the National Academies, presents a flexible framework that specifiers may use to assess whether performance specifying represents a viable option for a particular project or project element. If it is indeed a viable option, the Guide discusses how performance specifications may then be developed and used to achieve project-specific goals and satisfy user needs.