Recent Updates

Recent Updates
Updates to the Guide to Computation and Use of System Level Valuation of Transportation Assets Through NCHRP Project 20-44(46).

New Case Studies

A total of nine case studies were added to Chapter 9 of the guidance. The new case studies, listed in the table below, illustrate the application of different approaches described in the asset valuation guidance, including different perspectives on what value represents, different approaches for calculating initial value, and different approaches for calculating depreciation.

Case Studies Added Under NCHRP Project 20-44(46)

SectionTopicAssets
9.4Calculating Asset Value for Pavement Base and Surface in a Midwestern AgencyPavement
9.5Comparing Pavement Valuation Based on Condition vs. Age in a Southwestern AgencyPavement
9.6Calculating Asset Value for Assets with Varying Levels of Data Availability in a Western AgencyMultiple asset types
9.7Comparing Bridge Valuation Using Three Depreciation Approaches in a Northwestern AgencyBridge
9.8Using FHWA BIP Tool Data to Develop Bridge Deterioration CurvesBridge
9.9Valuing a Bridge Using the Economic Perspective in an Eastern AgencyBridge
9.10Valuing Pavement Based on Condition in a Metropolitan AgencyPavement
9.11Calculating Vehicle Asset Value Using the Market PerspectiveCutaway Bus
9.12Valuing Highway Assets Using the Economic Perspective in a Western AgencyPavement

Where are they located?


Asset Value Calculation Templates

The research team developed asset value calculation templates for bridges and for ancillary assets. These templates were added as downloadable files to the Guidebook Downloads page. These tools supplement the written guidance within the new case studies and allow readers to use them as resources for doing their own asset valuation calculations.

Bridge Asset Value Calculation Template

An Excel spreadsheet for calculating bridge asset value using bridge inventory and condition data and parameters defined by the calculating agency. In addition to calculating replacement value, the template calculates remaining (or current) asset value using two approaches: composite rating and age-based. The template also yields costs to maintain value and asset consumption ratios for each of the three approaches.

Ancillary Asset Value Calculation Template

An Excel spreadsheet for calculating ancillary asset value using inventory and age data and parameters defined by the calculating agency. This template is intended to be used with assets with limited available data. In addition to calculating replacement value, the template calculates remaining (or current) asset value, cost to maintain value and asset consumption ratio.

Note that Section 3.3 Establish the Asset Hierarchy discusses different considerations in establishing what asses classes to consider when performing the asset valuation calculation, and discusses different asset classes. The following additional resources discuss asset management strategies related to ancillary assets such as: signs, signals, guardrail, culverts, lighting, pavement markings, retaining walls, curb ramps, and noise walls.


Audio Version of the Digital Asset Value Guide

To improve the accessibility and usefulness of the Asset Value Guide, an audio version of the site was added. This audio version of the guidance covers the nine chapters of the site, as well as the two appendices.

These audio files were recorded using Voicemaker, a platform for converting text files to computer-generated narration.

Where are they located?

  • These audio files were then embedded at the beginning of each chapter and section.
  • The MP3 files can also be downloaded from the Guidebook Downloads page.

Glossary of Key Terms

The Asset Value Guide is intended to be a resource for transportation industry workers of all backgrounds and experience levels. To improve the guide’s accessibility for readers with little experience with economic analysis or any form of asset valuation, a glossary of key terms was added as a subsection under the “Support Materials” dropdown menu in the banner at the top of each webpage. This glossary includes an alphabetized list of dozens of terms pulled from each of the nine primary chapters of the guide, with a brief definition.

Where is it located?

  • The Glossary can be found in the “Support Materials” dropdown menu at the top of every page.

Improved Navigation Menus

To enhance the digital guide’s accessibility, the navigation menus were redesigned to include layers of dropdown menus. This new design allows readers to jump directly to the sections and supplemental materials they are looking for, rather than needing to navigate through multiple pages. This redesign also improves accessibility for pages that were unintuitive to find and were often skipped by readers, such as the appendices.

Where are they located?

  • Under the “Chapters” section in the banner at the top of every page.

New Color Theming

To improve the reader’s experience, new color themes were added to each of the nine main chapters of the guide. These color themes add variation the white, blue, and black format of the original version of the Asset Value Guide and help readers associate the different topics of the chapters with different colors or themes.

Where are they located?

  • Each of the nine chapters has a new color theme applied automatically.

Revamped Search Functionality

The revamped search feature includes results from different sections of the guide, not only the main nine chapters. This new system includes guidance from the “Calculation Steps” and the digital appendices. The new search also provides a preview of the key terms appearing within those pages, allowing readers to better assess which sections of the guide are worth exploring in more depth and limit the time wasted searching for the most relevant pages.

Where are they located?

  • The search feature can be accessed by typing a keyword or phrase in the search box located in the top right corner of each page.
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