PDRI for Infrastructure

Where is PDRI for Infrastructure used?

The PDRI for Infrastructure template is used to assess scope definition for projects that are linear in nature, cover a wide geographical area, and affect multiple jurisdictions and stakeholder groups.

Key Characteristics

Characteristic Infrastructure
Primary Designer Architect
Project Orientation Horizontal
System Vector
Utilization Conveyance
Operational Flow dynamics & networked grid
Interface with Public Extensive
Environmental Impact Extensive
Primary Cost Earthwork, materials associated with structures
Installed Equipment Cost Minimal
Land Cost  Moderate to high
Jurisdiction Interface  Extensive

Types of Projects

  • power or communication transmission lines
  • navigation locks
  • electrical distribution/transmission
  • airport runways
  • pipelines/pumping stations
  • highways
  • dams or levees
  • telecommunications
  • tunnels
  • canals
  • rails
  • marine or air terminals

Project Performance Impact

Application of the PDRI for Infrastructure template has been tested by the Construction Industry Institute (CII) on billions of dollars worth of infrastructure projects.  These projects included tunnels, security perimeters, pipelines, wharfs, electrical distribution, airport runways and taxiways, and roadways.

The table below compares project performance using their PDRI score at the time of project authorization (end of detailed scope). Projects with a PDRI score under 200 (a lower score indicates a better defined scope) consistently outperform projects with a PDRI score above 200 in terms of cost, schedule, and change orders.

Performance PDRI Score < 200 PDRI Score > 200 Difference
Cost  5% below budget  25% above budget  30%
Schedule  13% behind schedule  30% behind schedule  17%
Change Orders  3% of budget  10% of budget  7%

Reference: Project Definition Rating Index Infrastructure Projects, Implementation Resources 268-2, Version 4.0, Construction Industry Institute, 2013.

Top Ten Elements

Elements - Infrastructure

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