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Guidebook on Progressive Design-Build for Transportation Projects: Project Planning through Project Implementation

项目名称：	Guidebook on Progressive Design-Build for Transportation Projects: Project Planning through Project Implementation
摘要：	The most commonly used methodology for design-build (DB) contractor selection involves a best value process, with significant weight accorded to price, resulting in a fixed-price contract for design development and construction. Progressive design-build (PDB) is a recent variation that allows early contractor involvement with elements similar to a construction manager/general contractor (CM/GC) approach. Similar to the process used for CM/GC, pricing negotiation occurs for final design and construction in the preliminary design phase. But unlike CM/GC, PDB continues to transfer design liability and construction responsibilities to a DB team starting with the preliminary planning and design phase through to construction completion. PDB contracts include procedures for development of the design, schedule/phasing plan, and a price for final design and construction typically in the form of a guaranteed maximum price (GMP), targeted maximum price (TMP), or agreed lump sum. The development of the price is a key component of PDB as it allows owners to hire a progressive designer-builder without a total price commitment for final design and construction until reasonable design details are defined. Currently, state departments of transportation (DOTs) are utilizing variations in terminology, differing approaches in early progressive design-build team (PDBT)/state interactions, and varying contracting mechanisms due to the limited guidance available to implement PDB on their highway projects. To help state DOTs understand the benefits offered by PDB for transportation projects, research is needed to explore how PDB can be effectively implemented on highway projects. The objective of this research is to develop a guide for state DOTs to effectively and efficiently use PDB delivery for transportation projects that includes assistance with project planning and selection, project implementation, procurement, pricing procedures, and contract administration.
状态：	Proposed
资金：	300000
资助组织：	National Cooperative Highway Research Program；American Association of State Highway and Transportation Officials (AASHTO)；Federal Highway Administration
项目负责人：	McKenney, Christopher T
开始时间：	20221108
主题领域：	Administration and Management；Construction；Highways