Improved Methodology for Benefit Estimation of Preservation Projects

This research report presents an improved process for evaluating the benefits and economic tradeoffs
associated with a variety of highway preservation projects. It includes a summary of results from a
comprehensive phone survey concerning the use and application of the software developed by the Federal
Highway Administration (FHWA), known as the Highway Economic Requirement System (HERS-ST). This
national survey revealed that only a few states utilize this software in evaluating highway preservation
projects and revealed an existing need to bridge pavement management and economic impact analyses in the
evaluation of highway preservation projects. This research project developed a supplemental software
application tool within Excel to improve the HERS-ST software and enhance the capabilities of evaluating
highway preservation project analyses. This software application, the HERS-ST Benefit Application Tool
(HERS-ST-BAT), has been developed to enhance and improve upon the project evaluation process. By
combining HERS-ST-BAT and HERS-ST, the analyst is able to provide estimates for a variety of regional level
agency and user costs associated with preservation programs and more effectively consider different
investment alternatives. Three separate preservation project case studies are selected to apply the
HERS-ST-BAT and detailed results are presented.

Publication Date: 
Tuesday, April 17, 2018
Publication Number: 
WA-RD 877.1
Last modified: 
04/23/2018 - 12:44
Eric L. Jessup, You Zhou, Eric Lang.
Freight Policy Transportation Institute (FPTI). Washington State University.
Number of Pages: 
Preservation, Highways, Economic factors, User benefits, Costs, Economic impacts, Software packages, Surveys, Highway maintenance, Pavement management systems, Evaluation, Case studies, Recommendations.