Implementing the Triad affects the way cost estimation is performed.
Full implementation of the Triad requires flexibility in the cost estimation and procurement process.
Uncertainty in site-specific project scope and schedule has always been a significant factor for hazardous waste site cleanup programs. The complete list of contaminants of concern may be unknown, the volumes of affected media imprecise, the efficacy of a proposed remedial action unproven, and the duration of cleanup activities vague. This fact complicates project planning for cleanup projects, including cost estimation and the procurement of characterization and remediation services.
Historically for hazardous waste site cleanup, project uncertainty has been handled by keeping the details of individual project activities fixed and well-defined, but leaving open the number of activities that would ultimately be required to bring about site closure. In this paradigm, short-term costs and schedules are well understood, but lifecycle costs and timelines are unknown.
The Triad flips this paradigm around. Under the Triad, project uncertainties are identified by the systematic planning process and are often addressed directly in on-going activities, with the scope of activities changing to reflect conditions as they are encountered to keep work as efficient and effective as possible. This adaptability is possible through the use of real-time measurement technologies and dynamic work strategies. The results are shortened project timelines and reduced lifecycle costs, but also greater cost and scope uncertainty at the initiation of individual activities. This, in turn, presents Triad-specific cost estimation and procurement needs that must be addressed for successful deployment of a Triad approach.
This section discusses cost estimation and procurement dimensions associated with the Triad approach that are important from a project manager's perspective.
