Document Library

This synthesis documents how state DOTs manage Mechanically Stabilized Earth (MSE) walls in their inventories, including practices for maintenance, rehabilitation, assessment, and life-cycle cost analysis. While MSE walls are common in transportation projects for their efficiency and resilience, most are too new to evaluate long-term performance, and design standards have evolved significantly over time.

Tennessee DOT’s five-year Connected and Automated Vehicle Readiness Action Plan charts how CAV technology will become part of everyday traffic-signal and roadway operations statewide. Grounded in TDOT’s past investments and peer lessons, the plan lays out strategic, actionable steps across planning, policy, funding, engagement, and deployment, with an emphasis on quick safety gains and large-scale interoperability. It also details how TDOT leadership will equip and collaborate with resource-constrained local agencies on infrastructure, operations, and maintenance. Delivering the plan would embed CAV capabilities in TDOT’s standard toolkit and keep Tennessee at the forefront of future CAV investment and expansion.

Welcome to the Winter 2025 edition of the Transportation Performance Management (TPM) Newsletter, sponsored by the American Association of State Highway and Transportation Officials (AASHTO) Committee on Performance-BasedManagement (CPBM) in collaboration with the TPM Technical Service Program. The Technical Service Program is supported by AASHTO in collaboration with the Federal Highway Administration (FHWA). Featuring:

— Welcome from the AASHTO CPBM Chair
— MassDOT Destination Accessibility Measurement and Application
— Measuring Access to Destinations
— Access to Destinations Resources
— Input Needed: Surveys on Integrating Performance Management, Risk Management and Process Improvement, and Program-Level Risk Metrics
— AASHTO Updates
— TAM Webinar Focuses on Expanded Asset Classes in TAMPs
— Status of 2024-2027 PIARC Work Cycle
— Featured Transportation Research
— Save the Date
— Get Involved in a CPBM Subcommittee, Work Group, or Task Force

This brief document outlines the AASHTO CPBM Subcommittee on Asset Management's Strategic Plan for 2011-2015. Colorado DOT scanned their copy for archival purposes. Check out the home of the CPBM Subcommittee on Asset Management for more resources, news, and events: https://www.tam-portal.com/community/cpbm-am/

Welcome to the Fall 2024 edition of the Transportation Performance Management (TPM) Newsletter, sponsored by the American Association of State Highway and Transportation Officials (AASHTO) Committee on Performance-Based Management (CPBM) in collaboration with the TPM Technical Service Program. The Technical Service Program is supported by AASHTO in collaboration with the Federal Highway Administration (FHWA). Featuring:

— Welcome from the AASHTO CPBM Chair
— Improving Safety with Performance Management
— 2025 TRB 104th Annual Meeting Sessions of Interest
— Safety Resources
— AASHTO Updates
— Featured Transportation Research
— Register for the December 5th Joint AASHTO CPBM / TPM TSP Quarterly Virtual Webinar and Meeting
— Save the Date
— Get Involved in a CPBM Subcommittee or Work Group

The United States is experiencing a persistent road safety crisis. Over the past decade, the fatal crash rate per mile traveled has increased, with the sharpest growth occurring among crashes involving vulnerable road users such as pedestrians and bicyclists. U.S. motor vehicle fatality rates are also significantly higher—three to four times greater—than those in other high-income countries in Europe and Asia.

TRB Special Report 354: Tackling the Road Safety Crisis: Saving Lives Through Research and Action, produced by the Transportation Research Board of the National Academies of Sciences, Engineering, and Medicine, examines the scope and causes of this challenge. The study was conducted in response to a request from the Federal Highway Administration, the American Association of State Highway and Transportation Officials, and the Insurance Institute for Highway Safety.

The report outlines a set of recommendations for the U.S. Department of Transportation, including the development of a coordinated, data-driven national road safety research strategy across federally funded safety programs and stronger mechanisms to translate research findings into practice. It also emphasizes the need for systematic research to validate practitioner guidance and retire outdated or unsupported approaches. To advance these goals and elevate national road safety efforts, the study recommends establishing a National Road Safety Research Center.

The "Improving Safety with Performance Management Peer Exchange," held on September 20, 2024, focused on sharing best practices and experiences among state DOTs, FHWA, and other agencies to enhance transportation safety performance. Participants engaged in a collaborative forum discussing strategies, tools, and resources aimed at reducing transportation-related fatalities and serious injuries. A series of sessions addressed safety performance metrics and calculation, risk and resiliency, and the support of vulnerable road users, with insights shared through group discussions and expert presentations. Innovative practices were highlighted in a video showcase from various agencies, emphasizing collaborative and systemic approaches to safety improvements. The exchange concluded with prioritization exercises and strategy discussions, aimed at fostering a collective advancement in safety performance management across transportation agencies.

The Colorado Department of Transportation’s Resilience Improvement Plan (RIP) outlines the agency’s efforts to proactively manage risks and strengthen the state’s transportation infrastructure against natural and human-made hazards. Rooted in lessons from the 2013 flood disaster, the plan highlights CDOT’s Risk and Resilience Program and its commitment to minimizing disruptions and adapting to changing conditions, including those driven by climate change. It also aligns with national initiatives like the PROTECT program under the Bipartisan Infrastructure Law, integrating resilience into both short- and long-term planning. Through ongoing updates and data-driven strategies, the CDOT RIP serves as a framework for maintaining a safe, reliable, and adaptive transportation system.

This is a companion document to NCHRP Report 1122: Implementing Machine Learning at State Departments of Transportation.

Over the past two decades, machine learning—the leading branch of artificial intelligence—has risen rapidly on the strength of exploding data volumes, cheaper storage and computation, and continual algorithmic breakthroughs. Deep-learning techniques and generative AI systems such as ChatGPT are now transforming day-to-day business practices. Yet state and local transportation agencies are drowning in new data streams faster than they can translate them into actionable insight. TRB’s NCHRP Research Report 1122, *Implementing Machine Learning at State Departments of Transportation: A Guide*, equips DOTs with a primer on promising ML use cases, tools for weighing costs, benefits, risks, and constraints, and a roadmap for fostering the data-driven culture needed to scale these capabilities across transportation programs.

Advancements in connected and automated vehicle (CAV) technologies present new challenges for Traffic Incident Management (TIM) and emergency responders (ERs), particularly due to limited information sharing among stakeholders. NCHRP Research Report 1104 offers essential resources and communication tools to enhance collaboration and understanding between CAV developers, TIM personnel, and ERs. The report equips responders and those in the TIM community with strategies and insights to effectively engage with the evolving CAV landscape.

The Spring 2024 issue features the following articles and content:

• Welcome from the AASHTO CPBM Chair
• Driving Change: Transportation Policy in Action
• 2024-2027 PIARC Work Cycle
• AASHTO Updates
• TPM Webinar Explores the Intersection of Risk, Resilience, and Performance Management
• TAM Webinar 68 Highlights Equity and Transportation Asset Management
• Featured Transportation Research
• Save the Date
• Get Involved in a CPBM Subcommittee or Work Group