Procedures Guide for Right-of-Way Cost Estimation and Cost Management (2009) / Chapter Skim
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Pages 23-34
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From page 23... ...
Such an approach provides the structure needed for improving the accuracy of ROW cost estimates and managing ROW cost during project development. This approach provides a systematic methodology for describing the CE/CM process during all phases of project development.
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* Actual Parcel Cost Updated ROW Cost Estimate Figure 3.1.
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Figure 3.1 presents the overall ROW CE/CM process from the identification of transportation need at the planning phase through the acquisition of right-of-way during the final design phase. Each of the major ROW cost estimates, corresponding to a project development phase, is shown in Figure 3.1.
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. ROW Cost Estimating and Cost Estimation Management As SHAs prepare project cost estimates to support financial decisions, these estimates should include all cost elements.
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ROW requirements evolve as design concepts are developed. Conceptual ROW Cost Estimate Conceptual ROW Cost Estimates are program study estimates used for comparing project alternatives.
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Updating a ROW estimate may involve little more than substituting an amended page to an 28 Procedures Guide for Right-of-Way Cost Estimation and Cost Management Cost Estimating Step Actions Determine conceptual ROW estimate basis Review ROW requirement as documented per project type and scope Create ROW project estimate file Prepare conceptual ROW base estimate Review estimate basis Document observations from field visit Calculate total area by land type Develop cost basis for each ROW element Convert cost basis to estimate for each element Document estimate assumptions including uncertain items Summarize all estimate elements for total ROW cost Determine conceptual ROW risk and set contingency Identify, document, and evaluate major risks Assign a percentage contingency to account for risks Compile total cost estimate (base plus contingency) Review conceptual ROW cost estimate Review estimate basis and assumptions Verify completeness and cost data Review contingency amount based on identified risks Approve and communicate conceptual ROW cost estimate Obtain management approval Authorize communication of the estimate Table 3.1.
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Agency-Level Process Overview 29 Cost Estimating Step Actions Determine baseline ROW estimate basis Review ROW required as documented per project type and scope Request clarification of uncertain ROW requirements Document requirements in project estimate file Prepare baseline ROW base estimate Review estimate basis Document observations from field visit Calculate total area by land type based on potential parcel area Develop cost basis for each ROW element Convert cost basis to estimate for each element Document estimate assumptions including uncertain items Summarize all estimate elements for total ROW cost Determine baseline ROW risk and set contingency Identify risks Assess and analyze risks Assign contingency Document risk analysis and basis for contingency Compile total ROW cost estimate (base plus contingency) Review baseline ROW cost estimate Determine level of review Review estimate basis and assumptions Verify completeness and cost data Review contingency amount based on identified risks Prepare estimate package for approval Approve and communicate baseline ROW cost estimate Obtain management approval Authorize communication internally and externally Table 3.2.
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30 Procedures Guide for Right-of-Way Cost Estimation and Cost Management Cost Estimating Step Actions Update ROW estimate basis Review current ROW plans and compare with previous requirements Identify changes and potential magnitude of changes Request clarification of uncertain ROW requirements Update estimate basis in project estimate file Update ROW base estimate Review updated estimate basis to understand changes Document observations from field visit to confirm modifications Review changes to existing estimate assumptions/limitations Calculate total area for by land type for each parcel Revise cost basis for each ROW element Convert cost basis to update estimate for each element Update estimate documentation include uncertain items Summarize all estimate elements for total ROW cost Update ROW risk and set contingency Review risks Update risks as necessary Update contingency value Document updates to risk and contingency Update total cost estimate (base plus contingency) Review update ROW cost estimate Review estimate changes (basis and assumptions)
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Right-of-Way ROW plans are needed and numerous relocations of residences or displacement of commercial and/or industrial properties are required. A few to over 20 property owners are involved.
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Moderately complex project attributes (NCHRP Report 574 and PennDOT)
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. Cost Estimating Step Description Assess right-of way scope, conditions, and cost Compare final right-of way plan requirements with previous requirements Identify specific changes in right-of way requirements by parcel Estimate cost impact on each affected parcel Compare with current budget for impacted parcel Evaluate potential cost impact Compare actual right-of way cost against current STIP budget by parcel Determine cost impact on total right-of-way Adjust right-of way budget Document changes including changes to estimate basis and assumptions Notify project development team of modified budget Table 3.7.
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General estimating concepts were presented, including ten common ROW estimate elements and key inputs required to prepare estimated costs for the ten elements. Project complexity scenarios were presented because project complexity affects ROW cost estimating and cost management requirements.
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