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Project Discrepancies in Roadway Construction and Preservation: A Statistical Analysis of Public–Private Partnership Contract Types in the US

Nahidi, Seyedata; Fountas, Grigorios; Sarvani, Sonduru P.; Sarwar, Md Tawfiq; Anastasopoulos, Panagiotis Ch.

Authors

Seyedata Nahidi

Sonduru P. Sarvani

Md Tawfiq Sarwar

Panagiotis Ch. Anastasopoulos



Abstract

At the planning stage of a roadway construction or preservation project, public agencies face a crucial challenge; to adopt and implement the appropriate contractual framework that can minimize the anticipated project discrepancies, on the basis of project-specific conditions. Focusing on Public-Private Partnerships (PPP), a deeper understanding of the factors that affect each type of discrepancy can assist public agencies in thoroughly evaluating and comparing PPP options. This paper seeks to provide an empirical but comprehensive analysis on PPP-specific project discrepancies, by identifying influential factors that significantly affect cost savings, cost overrun, change orders, and time delays in roadway projects. Using data from 645 PPP projects implemented in the USA between 1996 and 2011, seven popular PPP contracting approaches in the USA were considered in the analysis, and a number of random parameters linear and non-linear statistical models were estimated by PPP approach. The results demonstrate that PPP-specific attributes such as project cost, size, types of constituent activities, and expected duration, have mixed effects on the occurrence and the magnitude of each type of discrepancy.

Citation

Nahidi, S., Fountas, G., Sarvani, S. P., Sarwar, M. T., & Anastasopoulos, P. C. (2017). Project Discrepancies in Roadway Construction and Preservation: A Statistical Analysis of Public–Private Partnership Contract Types in the US. Frontiers in Built Environment, 3, Article 15. https://doi.org/10.3389/fbuil.2017.00015

Journal Article Type Article
Acceptance Date Feb 17, 2017
Online Publication Date Mar 21, 2017
Publication Date Mar 21, 2017
Deposit Date Sep 19, 2018
Publicly Available Date Sep 20, 2018
Journal Frontiers in Built Environment
Electronic ISSN 2297-3362
Publisher Frontiers Media
Peer Reviewed Peer Reviewed
Volume 3
Article Number 15
DOI https://doi.org/10.3389/fbuil.2017.00015
Keywords Public–private partnerships, project discrepancies, cost savings, cost overrun, change orders, time delays, random parameters, statistical modeling
Public URL http://researchrepository.napier.ac.uk/Output/1301301
Contract Date Sep 20, 2018

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Project Discrepancies In Roadway Construction And Preservation: A Statistical Analysis Of Public–Private Partnership Contract Types In The US (230 Kb)
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Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/

Copyright Statement
Copyright © 2017 Nahidi, Fountas, Sarvani, Sarwar and Anastasopoulos. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forumsis permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.






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