CONTENTS 1 Introduction 1 Background 1 Purpose 1 Definitions 2 Organization of the Guide 3 2 Factors Affecting Project and Treatment Selections for Pavement Preservation 4 Traffic Level 4 Pavement Condition 5 ClimaLe/Knvironment 6 Work Zone Duration Restrictions 8 Expected Treatment Performance 9 Costs 12 3 Treatment Selection Process 15 Treatments for HMA-Surfaced Pavements 15 Treatments for PCC-Surfaced Pavements 15 Preservation Treatment Selection 15 Preliminary Identification of Feasible Preservation Treatments 17 Final Identification of Feasible Preservation Treatments 19 Treatment Cost-Effectiveness Analysis 22 Selection of the Preferred Preservation Treatment 28 References 31 Appendix A. Preservation Treatment Summaries 32 Appendix B. Examples of Identifying Feasible Preservation Treatments 47