Document Library

The 15th National TAM Conference on Transportation Asset Management was held Aug 25-28 in Chicago, IL, USA. Materials from the conference sessions are linked in the attached conference program in the "Schedule At-A-Glance" section. For more information on individual sessions, please refer to the detailed agenda on the conference site.

NCHRP Web-Only Document 432: Impacts and Performance of State DOT Resilience Efforts, from TRB's National Cooperative Highway Research Program, supplements NCHRP Research Report 1159 by providing detailed methods, tools, and case examples for evaluating transportation system resilience. The document supports state DOTs in developing performance-based approaches to assess and improve the effectiveness of resilience initiatives and investments.

State departments of transportation are increasingly prioritizing resilience to address disruptions from extreme weather, economic shifts, and population changes. NCHRP Research Report 1159: Measuring Impacts and Performance of State DOT Resilience Efforts* provides guidance on using resilience performance measures to evaluate and justify investments in transportation system resilience. Supplemental NCHRP Web-Only Document 432: Impacts and Performance of State DOT Resilience Efforts provides additional resources for state DOTs in developing performance-based approaches to assess and improve the effectiveness of resilience initiatives and investments.

Artificial intelligence—especially machine learning—is rapidly entering safety-critical domains where failures can harm people, the environment, or property. This report examines how to integrate ML safely into physical systems and outlines research priorities for safety, testing, and evaluation. It argues that rigorous safety-engineering practices must be adapted to ML, requiring changes in research, training, and engineering workflows. The authors urge a shift from judging algorithms by accuracy alone to ensuring system-level safety and reliability.

This guide from TRB’s National Cooperative Highway Research Program offers strategies for state DOTs and partner agencies to build and sustain a strong risk management culture. It emphasizes preparing for evolving challenges—from infrastructure failures to supply chain disruptions—using the Key Bridge collapse in Baltimore as a recent example.

NCHRP Web-Only Document 413: Applying the Safe System Approach to Transportation Planning, Design, and Operations is supplemental to NCHRP Report 1135: A Guide to Applying the Safe System Approach to Transportation Planning, Design, and Operations.

NCHRP Synthesis 652: Traffic Capacity Level of Service: Adaptations and Usage provides resources for state DOTs to evaluate and improve the LOS practices and policies

NCHRP Research Report 1135: A Guide to Applying the Safe System Approach to Transportation Planning, Design, and Operations, provides information for state departments of transportation and other transportation agencies to apply the holistic Safe System approach.

NCHRP Web-Only Document 431: Snapshots of Planning Practices, provides a series of illustrated "snapshots" as as a resource for transportation-planning practice development. This supplemental web-only document provides information for realistic practice implementation and program advancement and was published accompanying NCHRP Research Report 1158: Developing Snapshots for Transportation Planning.

NCHRP Research Report 1158: Developing Snapshots for Transportation Planning, chronicles the process of developing four Snapshots of Planning Practices. Snapshots are concise and visually appealing documents that report on current planning practices in use by transportation agencies across four practice areas: Complete Streets, Data Sharing for Performance Management, Collaboration on Local Freight Delivery, and Economic Analysis to Support Decision-Making.