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3 3. Application of a Life-Cycle Cost Analysis (LCCA) Procedure: pavement-type selection process. This chapter also presents This includes identification of a computational model as a discussion on developing strategies for each alternative to well as the gathering of cost and performance data for each sustain the desired performance level over the pavement's alternative to be considered. Guidance and computational life cycle. procedures for performing LCCA are being improved all Chapter 4 describes LCCA of pavement alternatives, includ- the time, and it is important that the agency keep abreast of ing establishing an LCCA framework, estimating initial and these developments. future costs, computing life-cycle costs, and analyzing and 4. Evaluation of Economic and Noneconomic Factors: After the interpreting the results. LCCA is completed, the feasible alternatives must be eval- Chapter 5 provides detailed guidance on the evaluation of uated to determine whether they meet the agency's goals. pavement alternatives using economic and noneconomic fac- An agency must identify those factors that previously have tors. This chapter also provides guidance on the application of been used in determining pavement type, as well as newly an alternative-preference screening matrix in selecting the pre- identified factors, and weigh their importance. This guide ferred pavement type. The application of the screening matrix describes the types of factors to consider and the develop- is illustrated with an example presented in Appendix A. ment of a screening matrix to evaluate these factors. Chapter 6 presents a discussion on the use of alternate bid- 5. Development of Policies for Alternate Bidding: Alternate bid- ding to select between two equivalent pavement alternatives. ding provides a competitive method of selecting a pave- On these projects, the agency provides the alternatives and ment alternative when two or more equivalent pavement specifies them in the bid document, and the contractor must alternatives are identified for a specific project. Policies will choose one of the agency-provided alternatives. The agency need to be developed as to when alternative bidding is to develops the bid adjustment factors based on its own pavement be used, along with the processes to be followed. life-cycle model. 6. Development of Policies for Alternative Contracting Projects: Chapter 7 outlines the processes for contractor-based pave- The limits and criteria to be used for allowing the bidder to ment selection on design-build and warranty projects. For select the type and design of pavements on alternative con- these projects, when the contractor is responsible for all or por- tracting projects, such as design-build and performance tions of the pavement design and selection processes, the proj- warranty projects, will need to be determined. ect criteria generally require the contractor to follow processes similar to the one used by the agency for design-bid-build proj- ects. However, the process may be modified if the contractor 1.4 Organization and Use provides extended warranties or assumes responsibility for This guide is organized into seven chapters. operations and maintenance. Chapter 1 includes introductory material. Appendix A illustrates the application of an alternative- Chapter 2 provides an overview of the pavement-type selec- preference screening matrix for pavement-type selection. tion process, including a flow chart outlining the entire process. Appendixes B and C present examples to illustrate the This guide addresses agency-based selection for traditional pavement-type selection process for alternate bidding and design-bid-build and alternate pavement-type bidding proj- design-build operations and maintenance projects, respec- ects, as well as contractor-based selection for design-build and tively. A summary of the research performed in NCHRP warranty projects. Project 10-75 that led to the development of this Guide for Chapter 3 outlines the steps to identify and evaluate poten- Pavement-Type Selection is presented as an attachment to this tial pavement alternatives that should be considered in the guide.