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Title:

Assessing Owner Expectations in Making the Project Delivery Method Selection Decision

Accession Number:

01764375

Record Type:

Component

Abstract:

The project delivery method (PDM) selection decision in transportation projects fundamentally involves the agency comparing those PDMs that it is authorized to use against projects risks and identifying the method that is perceived to maximize potential project success. While a number of academic studies have been conducted that proposed data-driven quantitative methodologies for optimizing the decision, a recent study funded by the Federal Highway Administration found that state departments of transportation (DOT) rely on a qualitative approach based on the perceived risks inherent with each PDM under consideration. This paper reports the results of case study interviews from eleven DOTs, which involved the rating of 19 project outcomes and the value of 15 preconstruction services. The analysis was conducted using two different approaches: classic Likert scale ratings and factorial pairwise comparison. The paper finds that the outcome reached by each method was different. The Likert scale rating indicated that design-build (DB) was the preferred PDM; whereas, the pairwise comparison found construction manager/general contractor (CMGC) to be the preferred method. The paper infers that the difference relates to the need for the agency to surrender control of the design details in DB. When a head-to-head comparison is made on the 34 variables CMGC is perceived to provide enhanced scope certainty as well as cost and schedule certainty when the DOT controls the design.

Supplemental Notes:

This paper was sponsored by TRB committee AKC20 Standing Committee on Project Delivery Methods.

Report/Paper Numbers:

TRBAM-21-00277

Language:

English

Authors:

Gransberg, Douglas D
D'Angelo, Daniel

Pagination:

10p

Publication Date:

2021

Conference:

Transportation Research Board 100th Annual Meeting

Location: Washington DC, United States
Date: 2021-1-5 to 2021-1-29
Sponsors: Transportation Research Board; Transportation Research Board

Media Type:

Digital/other

Features:

References; Tables

Identifier Terms:

Likert scale

Subject Areas:

Administration and Management; Construction; Transportation (General)

Source Data:

Transportation Research Board Annual Meeting 2021 Paper #TRBAM-21-00277

Files:

TRIS, TRB, ATRI

Created Date:

Feb 2 2021 3:05PM

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