RES2020-05: Tennessee Department of Transportation (TDOT) Right-of-Way (ROW) Appraisal Damages Study

The Tennessee Department of Transportation (TDOT) acquires private and commercial properties in conjunction with transportation projects. Many acquisitions are partial takings, i.e., only a portion of the total property is acquired. For such takings, damage amounts are included for the remainders in reports. However, the value of damages, determined from appraisals, is often questioned by owners of the damaged properties. Consequently, evaluating the accuracy and fairness of those appraisals is of paramount importance to both TDOT and affected property owners. In this regard, recent Tennessee appraisal data are used to identify the conditions affecting damages from right-of-way acquisitions. Specifically, the parcel attributes that have the most significant impact on the percent of damages were identified. Next, a prediction tool named ROWDA was developed based on appraisal data to obtain consistent and accurate damage estimates. Case studies of specific takings were identified and reviewed to assist in the transparency of the right-of-way taking process. For properties that had remainder sales data, damage appraisals were compared with the market data to calculate sales-based damages. They help to determine whether the model developed accurately predicted damages. While the small sample size limits definitive conclusions, the analysis suggests that the model predictions are reasonably accurate. Results show that the median sales-based percent-damages were -37%, close to appraisers’ estimated percent-damages (-35%) and ROWDA predicted percent-damages (-34%). Overall, the ROWDA tool can make the appraisal process more transparent by identifying appraisals that appear to be out of line with the model's projections.

Language

  • English

Project

  • Status: Completed
  • Funding: $201500
  • Contract Numbers:

    RES2020-05

    40100-07219

  • Sponsor Organizations:

    Tennessee Department of Transportation

    James K. Polk Building
    Fifth and Deaderick Street
    Nashville, TN  United States  37243-0349
  • Managing Organizations:

    Tennessee Department of Transportation

    James K. Polk Building
    Fifth and Deaderick Street
    Nashville, TN  United States  37243-0349
  • Project Managers:

    Jonas-Fields, Stephanie

  • Performing Organizations:

    Office of Research

    1534 White Avenue
    Knoxville, TN  United States  37996
  • Principal Investigators:

    Khattak, Asad

    Burton , Mark

  • Start Date: 20191101
  • Expected Completion Date: 20220131
  • Actual Completion Date: 0
  • USDOT Program: Transportation, Planning, Research, and Development

Subject/Index Terms

Filing Info

  • Accession Number: 01744116
  • Record Type: Research project
  • Source Agency: Tennessee Department of Transportation
  • Contract Numbers: RES2020-05, 40100-07219
  • Files: RIP, STATEDOT
  • Created Date: Jun 25 2020 5:53PM