Right-of-Way Methods and Tools to Control Project Cost Escalation (2009) / Chapter Skim
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Pages 28-48
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CHAPTER 3 CRITICAL REVIEW OF THE STATE OF PRACTICE Chapter 2 summarized the state of practice based upon the literature review and SHA and City agency interviews. This chapter provides a critical review of SHA practice in dealing with right-of-way estimation and management of right-of-way estimates.
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this research. The steps are discussed further in Chapter 4.
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Planning Estimate The right-of-way planning estimate is generally the first estimate produced to quantify right-of-way cost. The typical timeline for the planning estimate is 10 to 20 years prior to the forecasted construction letting time.
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Early Scope Definition Scope definition is critically important to the development of a cost estimate. In the case of a right-of-way cost estimate, scope definition is directly related to the completeness of the stated project right-of-way requirements.
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Percent-based Right-of-Way Cost Estimate Three of the SHAs interviewed use a percent-based right-of-way cost estimate procedure to develop a planning cost estimate. The percent-based cost estimate involves applying a percentage value to the estimated construction cost to determine the right-of-way cost portion for the planning estimate.
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Therefore, the critical review in this section discusses programming and preliminary design right-of-way cost estimation together. In general, and depending on project complexity there may be a number of cost estimates prepared during the programming phase.
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The map provided at preliminary design will include even more detail with greater certainty as a function of the project development evolution. Parcel boundaries and rightof-way areas of each parcel are identified.
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procedure focuses on right-of-way cost estimating for major projects and minor projects. This classification of projects is defined in ODOT project development process (PDP)
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most recent comparable sales in the area. Year-to-year inflation is not constant and can even differ by area; therefore, dated historical data is of little value when attempting to estimate real estate values.
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Figure 2. Right-of-way cost estimate sheet used by Caltrans 34
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Appraisers Employed as Cost Estimators The right-of-way cost estimators at one SHA are licensed and experienced appraisers. This does not seem to be a common agency practice.
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risk analysis by identifying and evaluating all factors that may impact the project. Contingencies are applied based upon the risk analysis.
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a new estimator or the original one) will have a general idea of where the estimate stands while giving them a point of reference to begin the update.
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Figure 3. Screen capture of Virginia's cost estimating system (PCES)
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Figure 4. Screen capture of Virginia's cost estimating system (PCES)
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Figure 5. Screen capture of Virginia's cost estimating system (PCES)
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Final Design When a project transitions from preliminary design into final design, right-of-way requirements are not usually restated. In essence, the right-of-way process must be completed ahead of other design elements in the project development process to ensure that all right-of-way real estate is acquired prior to construction.
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separate categories: 1) cost estimation management; and 2)
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budget set by the baseline estimate. This examination applies both to managing right-ofway cost and total project cost.
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Table 3. Summary of notable practices identified through SHA interviews Project Development Phase Best Practice Description Planning Conceptual Cost Estimate Map Aerial photo or map of each potential alignment showing approximate ROW boundaries.
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CHAPTER SUMMARY Cost estimation and cost estimate management practices currently used by SHAs were reviewed during the research and analyzed in relation to the project development phases. This chapter discusses these SHA practices in reference to right-of-way estimates completed at the various phases of the project development process.
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