Pavement analysis and design: future perspective

• Mix design, quality control, construction method and pavement design together determines the performance and longevity of a pavement. The future pavement design is expected to take an integrated design approach considering all these issues together.
• The parameters associated with pavement design are stochastic in nature. Thus, the two pavement designs (designed deterministically) having same design traffic may have different levels of reliabilities of survival. Thus, reliability issues of pavement design are gradually becoming important considerations (NCHRP 2005).
• A pavement designer essentially looks for the most economical design, yet considering the structural, functional, and drainage design requirement. The future pavement design practice is expected to consider the cost optimality over the entire life cycle of the pavement (Deshpande etal. 2010).