TRB’s second Strategic Highway Research Program (SHRP 2) Renewal Project R23 has released a prepublication, non-edited draft version of a report titled Using the Existing Pavement In-Place and Achieving Long Life that 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.
In addition to the report, Renewal Project R23 also developed an interactive computer software program that helps users through the decision process. The software also provides all of the resource documentation related to the project.