详情

原文传递 Pay Factors Based on Observed Field-Performance Data

题名：	Pay Factors Based on Observed Field-Performance Data
正文语种：	英文
作者：	Environmental Engineering Univ;
作者单位：	Prasad Buddhavarapu;Jorge A.Prozzi;Andre de Fortier Smit
关键词：	Pay adjustment factor; Field performance; Quality control; Performance-related specification (PRS); Censored data; Tobit model; Endogeneity
摘要：	The fundamental purpose of any construction specification is to ensure the expected long-term performance of the final product. A construction project that fails to meet the required quality level should always result in reduced payment to the contractor in order to recover the future costs that the highway agency will incur for additional maintenance. However, a superior-quality project must be rewarded based on actual savings to the agency that correspond with the improvement in performance due to higher construction quality. Performance-related specification (PRS) incorporates the economic implications associated with superior or inferior pavement construction practices. In general, earlier PRS development studies were based on performance data collected from either pilot pavement construction projects or models built based on experimental pavement sections. This study primarily focuses on constructing a pay adjustment framework utilizing field performance data and actual quality control measurements obtained during road construction projects. An econometric modeling approach for establishing the relationship between quality control parameters and the corresponding pavement performance (in terms of early deterioration rate) is proposed. Laboratory density of plant-mix, placement density of compacted pavement, and as-constructed ride quality are identified as performance-sensitive parameters. A performance-related, pay adjustment scheme that is governed by performance-sensitive quality control parameters is also developed.
出版年：	2016
期刊名称：	Journal of Transportation Engineering
卷：	Vol.142
期：	No.5
页码：	04016016