Track 2: Performance-Based Design Guide for New and Rehabilitated Concrete Pavements

Recent and in-progress research by track

Find up-to-date research organized by CP Road Map tracks in a searchable database.


The goal of this track is to continue enhancing the next generation of mechanistic approaches to pavement design and improving their integration with materials, construction, and environmental inputs. A major element of the track is helping agencies and contractors successfully make the change from strictly empirical design approaches to mechanistic approaches.

Activities to Date

  • Work is underway to develop a guide that outlines the existing concrete overlay design process, defines the key inputs, and provides numerous design examples and typical cross-sections.
  • Industry and State DOTs are investigating the size and spacing of concrete tie bars to make their use more efficient and economical.
  • The team is planning to evaluate the effect of construction practices on concrete materials properties and develop new tests for characterizing concrete strength and modulus that better reflect field behavior.
  • A future project will look at ways to improve distress and smoothness prediction models for jointed plain concrete pavement (JPCP). This project will result in more cost-effective and reliable designs for JPCP.


Research projects


  • Subtrack 1: Design Guide Structural Models
  • Subtrack 2: Design Guide Inputs, Performance Models, and Reliability
  • Subtrack 3: Special Design and Rehabilitation Issues
  • Subtrack 4: Improved Mechanistic Design Procedures
  • Subtrack 5: Design Guide Implementation