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    <title>Transport Research International Documentation (TRID)</title>
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    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
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    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
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      <title>Real-Time Warnings and Variable Speed Limits: Safety and Travel Reliability During Weather Events</title>
      <link>https://trid.trb.org/View/2727284</link>
      <description><![CDATA[Adverse weather conditions such as rain, snow, fog, and high winds pose significant challenges to roadway safety and mobility. These conditions not only increase the risk of crashes but also contribute to travel delays, congestion, and unpredictable driving behavior. To mitigate these risks, transportation agencies are increasingly deploying variable speed limit (VSL) and real-time warning (RTW) systems, which use real-time data to dynamically adjust speed limits and provide timely hazard alerts. This report, produced by Transportation Research Board's (TRB’s) National Cooperative Highway Research Program, is a guide designed to support transportation professionals in understanding, evaluating, and implementing these systems in response to adverse weather conditions. The strategies and case studies included in this guide are intended to help transportation agencies enhance roadway safety, improve traffic flow, and ensure drivers receive accurate, timely information to navigate hazardous conditions effectively. The same project that produced NCHRP Research Report 1176 also documented its methodology and findings in NCHRP Web-Only Document 447: Evaluating the Impacts of Real-Time Warnings and Variable Speed Limits on Safety and Travel Reliability During Weather Events.]]></description>
      <pubDate>Tue, 14 Jul 2026 13:34:59 GMT</pubDate>
      <guid>https://trid.trb.org/View/2727284</guid>
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      <title>Integrating Transportation Systems Management and Operations into Transportation Asset Management: A Guide</title>
      <link>https://trid.trb.org/View/2724645</link>
      <description><![CDATA[Transportation systems management and operations (TSMO) asset management applies transportation asset management (TAM) principles to TSMO assets to improve decision-making, guide future investments, and maximize system performance while minimizing life-cycle costs and risks. Since the early adoption of TAM, state departments of transportation have expanded their risk-based transportation asset management plans (TAMPs), which traditionally focused on pavements and bridges, to include additional asset types. The rapid evolution of intelligent transportation systems has further broadened the asset base to include software, computer networks, communications systems, and hardware such as inductive loops and cameras. This report, NCHRP Research Report 1182, produced by the Transportation Research Board's (TRB’s) National Cooperative Highway Research Program, provides a comprehensive approach for transportation agencies to integrate TSMO into TAM. This integration helps ensure that TSMO assets are managed efficiently to support agency goals and operational outcomes by enhancing the performance, reliability, and safety of the transportation system, while optimizing resource allocation and minimizing costs.]]></description>
      <pubDate>Mon, 06 Jul 2026 16:28:58 GMT</pubDate>
      <guid>https://trid.trb.org/View/2724645</guid>
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    <item>
      <title>Toolkit for Institutionalizing the Safe System Approach</title>
      <link>https://trid.trb.org/View/2717376</link>
      <description><![CDATA[This report provides a toolkit for transportation and planning agencies with strategies to institutionalize the Safe System Approach (SSA) throughout planning and programming processes. Institutionalizing SSA focuses on system-wide opportunities for injury prevention that can offer broader impact than siloed or isolated safety efforts. The toolkit includes 30 unique tools organized into four themes. The toolkit is envisioned as a menu of options to meet agencies where they are in terms of their needs and readiness. Different strategies will be more appropriate in certain jurisdictions than others, and some tools are interconnected, designed to reinforce one another and create greater impact when used in combination. The toolkit should be of particular use to state, regional, and local agencies actively working to eliminate traffic-related serious injuries and fatalities.]]></description>
      <pubDate>Tue, 30 Jun 2026 10:54:44 GMT</pubDate>
      <guid>https://trid.trb.org/View/2717376</guid>
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      <title>Overcoming Barriers to Implementing Research Outcomes</title>
      <link>https://trid.trb.org/View/2714458</link>
      <description><![CDATA[A myriad of common barriers can hinder research projects from achieving implementation. Within transportation agencies, many of these barriers are associated with organizational challenges, disconnected research outcomes, and workforce constraints. Organizational challenges arise from structures and processes that may not support effective research implementation. Disconnected research outcomes can lead end users to be unwilling to adopt those outcomes in their daily practice. Workforce constraints related to research implementation may involve staff capacity, skill sets, and levels of interest within both the agency’s research department and among the intended beneficiaries of the research outcomes. This report provides a toolkit of strategies to improve the implementation of research outcomes and maximize their impact. The toolkit introduces a common language for describing research and its implementation and presents a series of frameworks that demonstrate alternative approaches to implementation planning. It also outlines strategies for overcoming the most commonly cited barriers to implementing research outcomes. The report is based on a review of existing literature, input from stakeholders, and repeated feedback from state department of transportation (DOT) staff. It is intended for DOT research managers, technical champions, and others involved in applying research results in practice.]]></description>
      <pubDate>Thu, 18 Jun 2026 16:35:20 GMT</pubDate>
      <guid>https://trid.trb.org/View/2714458</guid>
    </item>
    <item>
      <title>Revenue-Related Tools for New Mobility</title>
      <link>https://trid.trb.org/View/2709406</link>
      <description><![CDATA[This report provides a toolkit to help transportation agencies design and evaluate a broad array of revenue-related tools, such as taxes, fees, and subsidies, that may be applied to new mobility. The research included outreach with stakeholders and case studies to understand the challenges posed by new mobility services that are rapidly emerging. This toolkit on revenue strategies for new mobility is both timely and necessary to address the disruptions straining traditional funding mechanisms for transportation. The toolkit should be of particular use to agencies seeking to align funding and policy goals with appropriate revenue-related tools and evaluate their successes and challenges in various contexts.]]></description>
      <pubDate>Sat, 13 Jun 2026 15:31:06 GMT</pubDate>
      <guid>https://trid.trb.org/View/2709406</guid>
    </item>
    <item>
      <title>Public Transit and Ride Sharing for Rural, Tribal, and Frontier Agencies: A Guide</title>
      <link>https://trid.trb.org/View/2712234</link>
      <description><![CDATA[This report presents guidance for transportation agencies on integrating public transportation in less populated areas with shared-use mobility (SUM) services. The guide provides examples of notable practices and lessons learned from various transportation agencies and presents information regarding SUM services and technology that can be scaled to rural, tribal, or frontier settings. The guide should be of value to state departments of transportation (DOTs) and other agencies seeking to improve available transportation services and enhance mobility options in their communities or regions via innovations in SUM.]]></description>
      <pubDate>Sat, 13 Jun 2026 15:31:06 GMT</pubDate>
      <guid>https://trid.trb.org/View/2712234</guid>
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    <item>
      <title>Depicting Utility Facilities in Design Plans: A Guide</title>
      <link>https://trid.trb.org/View/2712238</link>
      <description><![CDATA[This report presents guidance for state departments of transportation (DOTs) and other transportation agencies on depicting data from various sources to support design decisions and utility conflict identification and resolution. This guide supports end users in (1) depicting existing, proposed, and relocated facilities; (2) prioritizing the depiction of data from multiple sources; (3) reconciling inconsistent utility data from various sources; and (4) determining the reliability of depicted data for design standards. Because maintaining a robust utility dataset can be challenging for agencies, the guidelines in this report further enhance the mechanisms for providing depicted information at varying levels of detail to meet end users’ needs. The guide should be of value to both public and private agencies seeking to ensure that utility information is provided to stakeholders in a consistent format, with the appropriate level of comprehensiveness at the right time.]]></description>
      <pubDate>Sat, 13 Jun 2026 15:31:06 GMT</pubDate>
      <guid>https://trid.trb.org/View/2712238</guid>
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    <item>
      <title>Developing a Guide for Local Truck Parking Regulations</title>
      <link>https://trid.trb.org/View/2703936</link>
      <description><![CDATA[This report presents a report on local truck parking regulations that includes model ordinances, zoning code provisions, and strategies to support decisionmaking and implementation at the local level. The report was developed through a research approach that included a regulatory scan, case studies of local jurisdictions, and the creation of model ordinances and policy tools. This report and accompanying guide are intended to assist agencies and communities in understanding truck parking logistics, engaging stakeholders, and incorporating truck parking considerations into local plans and development codes. These deliverables will be of particular interest to state departments of transportation (DOTs), local government planning officials, metropolitan planning organizations (MPOs), zoning administrators, industrial developers, and freight and logistics professionals.]]></description>
      <pubDate>Sat, 23 May 2026 18:35:19 GMT</pubDate>
      <guid>https://trid.trb.org/View/2703936</guid>
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    <item>
      <title>Preparing the Transportation Workforce for Emerging Technologies: A Guide</title>
      <link>https://trid.trb.org/View/2701279</link>
      <description><![CDATA[This report presents strategies with tailored resources to support efforts by transportation agencies to recruit, develop, and retain staff capable of deploying new transportation technologies. The guide was developed on the basis of an extensive review of industry workforce needs and challenges found in the literature, in stakeholder engagement, and practitioner workshops. This guide will be valuable to transportation agency staff and leadership seeking to build internal capacity to adopt and leverage the benefits of emerging transportation technologies.]]></description>
      <pubDate>Sat, 16 May 2026 12:15:37 GMT</pubDate>
      <guid>https://trid.trb.org/View/2701279</guid>
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    <item>
      <title>Interdependence of Federal, State, and Local Transportation Funding and Ownership</title>
      <link>https://trid.trb.org/View/2701281</link>
      <description><![CDATA[This report presents a guide to help state departments of transportation (DOTs) navigate funding and financing interdependence. The guide outlines how these interdependences work, strategies to manage them, and the outcomes of the interdependences. It was developed based on extensive review of the state of the practice, engagement of the community of practice, and use cases. The information in the guide will be of immediate interest to policymakers and funding decision-makers. The findings will serve as a valuable resource for state DOTs and other public transportation agencies.]]></description>
      <pubDate>Sat, 16 May 2026 12:15:36 GMT</pubDate>
      <guid>https://trid.trb.org/View/2701281</guid>
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    <item>
      <title>Data Ontologies for Data-Driven Decision-Making: Development and Use</title>
      <link>https://trid.trb.org/View/2689752</link>
      <description><![CDATA[This report presents an advanced data representation and knowledge management guide, providing state departments of transportation (DOTs) with tools and techniques to treat data as a business asset. The guide also provides state DOTs with essential resources to develop and implement data ontologies that support data-driven decision-making. It was developed through a literature review, survey, case studies, and use cases. The information contained in the guide will be of immediate interest to transportation data practitioners and managers. The findings will serve as a valuable resource for state DOTs and other public transportation agencies.]]></description>
      <pubDate>Sat, 11 Apr 2026 11:01:05 GMT</pubDate>
      <guid>https://trid.trb.org/View/2689752</guid>
    </item>
    <item>
      <title>Delineation of Linear Roadside Hardware Systems and Roadside Obstacles</title>
      <link>https://trid.trb.org/View/2682135</link>
      <description><![CDATA[This report provides information on the practices for delineating linear roadside hardware systems and roadside obstacles, including their descriptions, effectiveness, and appropriate applications. This information was developed from (1) a review and evaluation of current practices relevant to the delineation of linear roadside hardware systems and roadside obstacles, (2) an analysis of crash data and the effectiveness of delineation practices in reducing crash severity or crash frequency, and (3) a human factors study evaluating the effectiveness of several roadside hardware and roadside obstacle delineation practices. The information contained in this report will help highway agencies and other organizations concerned with safety aspects on highways make informed decisions regarding the delineation of roadside hardware and obstacles to reduce crashes and improve safety.]]></description>
      <pubDate>Sun, 22 Mar 2026 17:18:11 GMT</pubDate>
      <guid>https://trid.trb.org/View/2682135</guid>
    </item>
    <item>
      <title>UAS Flight Proficiency Examination: Proctor Guide for PROPS Test</title>
      <link>https://trid.trb.org/View/2682213</link>
      <description><![CDATA[This report provides instructions and scoring procedures for applying the standardized evaluation criteria for the Pilot Readiness and Operational Proficiency Standardized (PROPS) Test. Both the guide and the test were developed through iterative design phases, independent reviews, and structured feedback from state department of transportation (DOT) personnel. The guide and PROPS Test will be of particular interest to state DOTs, aviation program managers, and policymakers responsible for unmanned aircraft system (UAS) operations and workforce certification.]]></description>
      <pubDate>Sun, 22 Mar 2026 17:18:11 GMT</pubDate>
      <guid>https://trid.trb.org/View/2682213</guid>
    </item>
    <item>
      <title>Incorporating Uncertainty into Long-Range Transportation Planning: A Guide</title>
      <link>https://trid.trb.org/View/2682175</link>
      <description><![CDATA[This report presents strategies to assist state departments of transportation (DOTs) with incorporating uncertainty into their long-range transportation planning processes. The guide provides suggestions on plan scoping, development, implementation, and capacity building. It was developed based on an extensive review of literature and practice and documents sources of uncertainty, decision-making frameworks, data and methods, and the regulatory context. The information contained in the guide will be of immediate interest to transportation planners and decision-makers. The findings will serve as a valuable resource for state DOTs and other public transportation agencies.]]></description>
      <pubDate>Sun, 22 Mar 2026 17:18:11 GMT</pubDate>
      <guid>https://trid.trb.org/View/2682175</guid>
    </item>
    <item>
      <title>Evaluating the Safety Effects of Automated Traffic Signal Performance Measures</title>
      <link>https://trid.trb.org/View/2681403</link>
      <description><![CDATA[This report presents two methods for using crash modification factors (CMFs) to evaluate the safety effects of automated traffic signal performance measures (ATSPMs) based on changes in signal timing or operation. The first method produces an estimate of the change in crash frequency and crash cost associated with implementing an ATSPM-based approach to signal timing and operations within a signal system. The second method uses CMFs to quantify the change in crash frequency and severity associated with a specific ATSPM-based change to signal timing or operation at one or more signalized intersections (e.g., the safety effect of reducing red light running). The methods were developed based on data from arterials and signalized intersections in several states over multiple years. This report will be of interest to state departments of transportation, local transportation agencies, and consultants involved in planning, managing, maintaining, or operating traffic signals utilizing ATSPMs.]]></description>
      <pubDate>Sun, 22 Mar 2026 17:18:11 GMT</pubDate>
      <guid>https://trid.trb.org/View/2681403</guid>
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