On Reducing Bumps at Pavement-Bridge Interfaces

The goal of this research is to determine the cost-effective solutions for reducing bumps at pavement-bridge interface to improve ride quality, which will in turn reduce safety hazards and maintenance cost. In pursuit of this goal, the research objective of this proposal is to develop new specifications and guidelines for the design and construction of approach slab and adjoining embankment, which will prevent, or at least minimize bridge bumps to an acceptable limit. The research approach is to check existing codes and specifications in some selected Sate Departments of Transportation (DOT) for the design and construction of approach pavement and approach slab, conduct field surveys on some selected highway bridges with visible bumps, determine the best probable solutions that may reduce bumps in the long run, and check the probable solutions for accuracy and effectiveness through structural analysis and design. Once the probable solutions are acceptable, new specifications and guidelines will be developed and recommended to the Ohio Department of Transportation (ODOT) for incorporating into its existing specifications and guidelines for the design and construction of approach slabs and approach pavements.