01778904

Component

https://doi.org/10.1177/03611981211025518

Many state highway agencies (SHAs) have adopted pay adjustment provisions in their acceptance plans for construction and materials. In these payment adjustment acceptance plans, the percentage of material within specification limits (PWL) has been selected as the quality measure to relate production quality to pay factors, and pay equations are used to determine a pay factor for a lot based on PWL. Various pay equations have been proposed by the highway community for adoption in SHAs’ specifications. However, the effectiveness of these pay equations has not been fully evaluated. Another issue concerning the pay adjustment acceptance plans is the risk associated with single and multiple pay factors. The purpose of this study was to evaluate the effects of different pay equations commonly used by SHAs and the risks associated with pay adjustment acceptance plans. This was achieved by developing operating characteristic curves associated with various pay factors and expected pay curves and Monte Carlo simulation for assessing the effects in the long run. The methodology suggested in this paper is transferable elsewhere where similar materials and specifications are used for the acceptance of pavements.

Yunpeng Zhao https://orcid.org/0000-0003-4183-7635 © National Academy of Sciences: Transportation Research Board 2021.

English

0000-0003-4183-7635

pp 1258-1271

2021-11

Transportation Research Record: Journal of the Transportation Research Board

Web

References (11)

Adjustment factors; Equations; Materials; Monte Carlo method; Paving; Payment; Quality assurance; Simulation; State highway departments

Construction; Finance; Highways; Materials; Pavements

TRIS, TRB, ATRI

Jul 25 2021 3:12PM