The objective of this research, NCHRP 13-04, was to develop a Guide for Optimal Replacement Cycles of Highway Operations Equipment. The guide included processes and tools for consideration in making decisions regarding the optimal replacement cycles of on- and off-road highway operations equipment used by state highway agencies.
The study’s report, Research Report 879: Optimal Replacement Cycles of Highway Operations Equipment, acts as a handbook on equipment replacement concepts and an instruction manual for making cost-effective replacement decisions. The research report presents a process for determining replacement needs for highway operations equipment, identifying candidate equipment units for replacement, and preparing an annual equipment replacement program. The products include a guidance document and an Excel-based replacement optimization tool to support the equipment replacement process and facilitate its implementation.

The objective of this research was to develop a TAM gap analysis tool for state DOT and local transportation practitioners to facilitate their implementation of TAM. The tool was formulated as a spreadsheet application based on the prototype presented in TAM, Volume 2 (developed through NCHRP and published by AASHTO), with refinements responsive to (a) requirements of MAP-21 and anticipated FHWA rulemaking and (b) institutional and technical characteristics of U.S. transportation system management practices.

The objective of TRB's National Cooperative Highway Research Program (NCHRP) Project 08-36(Task 128) was to evaluate Design Visualization Methods and their applicability to transportation planning and analysis. The report, Web-Only Document 226: Data Visualization Methods for Transportation Agencies, provides techniques for planners who have various levels of experience with displaying and reporting information in a visual format. It includes practices for developing visualization skills, enhancing transportation analysis, and improving public engagement.