Title:
Trade-off Analysis to Improve Concrete Pavement Sustainability by Optimizing Designs
Author(s):
James Mack
Publication:
Web Session
Volume:
ws_S23_JamesMack.pdf
Issue:
Appears on pages(s):
Keywords:
DOI:
Date:
4/2/2023
Abstract:
Historically concrete pavement designs are based on an engineering analysis where the pavement thickness is chosen to meet the traffic, environmental, and subgrade conditions for the project, and the other features, such as joint spacing, base types, etc., are set by practice and policy. If these other features are evaluated, it is assumed that all the designs will perform similarly. This is not a reasonable assumption. Furthermore, this often results in over-designed concrete pavements, leading to higher economic costs and environmental impacts. This presentation will show how pavement engineers can optimize pavement designs by accounting for the performance differences between pavements with different design features; and using a trade-off analysis to create pavement structures with low initial costs and initial CO2 emissions, as well as low life cycle costs and lifetime CO2 emissions.