When is optimization of a plan finished?
Project performance is continually improved throughout planning, design, and operations. However, attempts to optimize
information used in the planning study should stop once that information is sufficient for decision making. So, the intuitive
optimization that begins prior to TSP is complete once a distinctly different array of alternatives has been formulated. Optimization
in the detailed feasibility analysis (post-Agency Decision Milestone) is complete once we have confidence that our estimates of costs,
impacts and benefits are sufficient to support authorization, NEPA requirements, and budgeting.