The National Academies

NCHRP 23-08 [Final]

A Guide for Incorporating Maintenance Costs into a Transportation Asset Management Plan

  Project Data
Funds: $350,000
Research Agency: Applied Pavement Technology, Inc.
Principal Investigator: Brad Allen
Effective Date: 9/22/2020
Completion Date: 10/22/2022


The Moving Ahead for Progress in the 21st Century Act (MAP-21) established a performance-based Federal-Aid Highway Program that includes a requirement for state departments of transportation (DOTs) and metropolitan planning organizations (MPOs), and other transportation planning agencies to develop and regularly update a risk-based Transportation Asset Management Plan (TAMP).  The TAMP is designed to identify investment and management strategies to improve or preserve asset conditions as well as the performance of the National Highway System (NHS).  Although only pavements and bridges on the NHS are required to be included in the TAMP, states are encouraged to include additional assets.  At a minimum, the TAMP should include the following: 

  • A summary of NHS pavement and bridge assets, including a description of conditions;
  • Asset management objectives and performance measures;
  • Identification of any performance gaps;
  • A life-cycle cost and risk management analysis; and
  • A 10-year financial plan and corresponding investment strategies.

While most states are able to capture past and planned expenditures on capital projects, states are finding it challenging to incorporate maintenance costs into their TAMP.  

The absence of maintenance cost data in a TAMP must be addressed to capture the full amount of investments being made by states in the transportation system.  This issue is especially important as state transportation agencies increase their attention to system preservation, placing greater emphasis on preventive maintenance. 


The objective of this research is to develop a guide for state DOTs and other transportation agencies on incorporating maintenance costs in a risk-based TAMP, including but not limited to the following: 

1.    A detailed presentation of procedures for identifying, collecting, and managing required data;

2.    Using life-cycle planning tools and techniques to demonstrate financial requirements and cost-effectiveness of maintenance activities and preservation programs and the potential change in costs and liabilities associated with deferring these actions;

3.    Formulating strategies that identify how to invest available funds over the next 10 years (as required by the TAMP) using life-cycle and benefit-cost analyses (and other applicable tools and techniques) to measure tradeoffs between capital and maintenance activities in alternative investment scenarios; and

4.    Designing components of a financial plan showing anticipated revenues and planned investments in capital and maintenance costs for the next 10 years.  

Status:  Research has been completed. The research report and supplemental deliverables may be found here: https://www.trb.org/Publications/Blurbs/183099.aspx

To create a link to this page, use this URL: http://apps.trb.org/cmsfeed/TRBNetProjectDisplay.asp?ProjectID=4789