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Title:

Empirical Documentation of Project Delivery Risks for Highway Design and Construction

Accession Number:

01622797

Record Type:

Component

Abstract:

Highway agencies currently have several options to deliver their transportation projects. These options typically include the traditional design-bid-build (D-B-B), design-build (D-B), and construction manager/general contractor (CM/GC) delivery methods. Selecting an appropriate project delivery method is a complex decision-making process. At the time of the decision, the owner agency and stakeholders have little information and the project plans are not detailed enough to make accurate judgments on project outcomes. As a result, a project delivery decision is often fraught with risk and uncertainty. This paper presents the result of a two-tier approach to evaluating impacts of risks and uncertainties on project delivery selection in highways. Tier 1 involves identifying and verifying 31 risk factors related to the project delivery selection process based on experts with an average of 25 years of relevant experience. Tier 2 involves empirical documentation of project delivery risks based on analyzing 274 completed highway projects (126 D-B-B, 116 D-B, and 32 CM/GC). These 274 projects were collected from 26 agencies. The results indicate the eight risk factors that substantially impact the project delivery selection process. These eight project delivery risk factors include: delays in completing in railroad agreements; project complexity; uncertainty in geotechnical investigation; delays in a right-of-way (ROW) process; unexpected utility encounter; work zone traffic control; challenges to obtain environmental documentation; and delays in delivery schedule. This study also discusses the pertinent findings and rationale behind these critical risk factors. Highway agencies and other practitioners can use these risk factors to make more effective and defensible decisions on which delivery method is the most suitable for their transportation projects.

Supplemental Notes:

This paper was sponsored by TRB committee AFH15 Standing Committee on Project Delivery Methods.

Monograph Accession #:

01618707

Report/Paper Numbers:

17-06461

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Bypaneni, Sai P K
Tran, Daniel

Pagination:

16p

Publication Date:

2017

Conference:

Transportation Research Board 96th Annual Meeting

Location: Washington DC, United States
Date: 2017-1-8 to 2017-1-12
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; References; Tables

Subject Areas:

Administration and Management; Construction; Design; Highways; Planning and Forecasting

Source Data:

Transportation Research Board Annual Meeting 2017 Paper #17-06461

Files:

TRIS, TRB, ATRI

Created Date:

Dec 8 2016 12:38PM