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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>Transport Research International Documentation (TRID)</title>
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      <title>Redefining Stakeholder Engagement to Develop Safer Transportation Systems</title>
      <link>https://trid.trb.org/View/2709584</link>
      <description><![CDATA[A major strength of the Transportation Research Board's (TRB’s) Cooperative Research Programs (CRP) is the ability to bring together a variety of subject matter experts to review draft materials developed by research teams and to make technical contributions to the preparation of final deliverables. One method used to obtain stakeholder feedback involves conducting in-person workshops at the National Academies’ Keck Center in Washington, DC, and the Beckman Center in Irvine, California. A stakeholder workshop for Behavioral Traffic Safety Cooperative Research Program (BTSCRP) Project BTS-24, “Multi-Solving Safety Approach: Stepping Away from Silos to Achieve a Safer System” was conducted on March 25, 2026 at the Beckman Center. The research team, led by Iowa State University, is developing a guide to promote and facilitate diverse, cross-sectoral groups to collaborate on multi-solving decision-making and implementation. The BTS-24 workshop brought together 20 traffic safety stakeholders from ten geographically dispersed states including representatives from a state department of transportation (DOT); county DOTs, departments of public works, and road commissions; a city traffic engineer; state police; metropolitan planning organizations; National Rural Technical Assistance Program; Families for Safe Streets; U.S. Park Service; and Tribal representation. Information regarding the BTSCRP program, and specific projects including BTS-24, is available at https://www.trb.org/BTSCRP/BTSCRP.aspx]]></description>
      <pubDate>Wed, 01 Jul 2026 15:07:13 GMT</pubDate>
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      <title>How the Safe System Approach Is Creating Safer Roads</title>
      <link>https://trid.trb.org/View/2709560</link>
      <description><![CDATA[Traditional methods to address highway safety try to design roadways to eliminate any possibility of a crash occurring. The Safe System Approach (SSA) acknowledges that human error is inevitable and focuses on making changes to the transportation environment and operations that help reduce and prevent injuries from these errors. This article highlights global success of SSA implementation and discusses the state of the practice of SSA in the United States. U.S. examples of SSA implementation include Minnesota Department of Transportation's (Minnesota DOT's) use of J-turns, Kansas City, Missouri's use of road diets, Colorado DOT's guidance on setting speed limits, and the prioritization of staff training by New Jersey and Missouri state DOTs.]]></description>
      <pubDate>Wed, 01 Jul 2026 15:07:13 GMT</pubDate>
      <guid>https://trid.trb.org/View/2709560</guid>
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      <title>NCHRP Research Report 1157 and NCHRP Web-Only Document 430: Into the Spotlight: Creating a Safe System for Pedestrians in Darkness</title>
      <link>https://trid.trb.org/View/2709548</link>
      <description><![CDATA[National Cooperative Highway Research Program (NCHRP) Project 17-97, “Strategies to Improve Pedestrian Safety at Night" investigated factors associated with pedestrian risk at night and developed NCHRP Research Report 1157: Strategies to Improve Pedestrian Safety at Night: A Guide. This report focuses on the Safe Speeds and Safe Roadways pillars of the Safe System Approach and provides information and strategies related to safe road users, safe vehicles, and post-crash care. The supporting NCHRP Web-Only Document 430 provides information about the research behind the guidance. This article summarizes key findings from the research and discusses: (1) factors affecting pedestrian risk in darkness, such as, higher roadway speeds, roadway design, vision and visibility, and nighttime behaviors; and (2) applying the Safe System Approach to increase pedestrian safety at night centered around managing motorist speed and redressing underinvestment in underserved communities. The article concludes with recommended actions for local, regional, and state agencies to take now to improve pedestrian safety at night.]]></description>
      <pubDate>Wed, 01 Jul 2026 15:07:13 GMT</pubDate>
      <guid>https://trid.trb.org/View/2709548</guid>
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      <title>ACRP Research Report 243 and ACRP Research Report 261: Preparing Airports and Communities for Advanced Air Mobility</title>
      <link>https://trid.trb.org/View/2709543</link>
      <description><![CDATA[Advanced air mobility (AAM) is the collective term for next-generation aircraft that typically are highly automated, electrically powered, and capable of taking off and landing vertically. This emerging aviation sector offers new, cost-effective ways to move people and products, with potential applications ranging from air taxis to logistics and goods delivery, emergency response, and private and recreational use. As currently envisioned, the AAM ecosystem initially will rely on existing airports, heliports, and routes, but dedicated facilities and new routes are likely to be developed in the future. To help airports and communities thoughtfully and strategically prepare for AAM, the Transportation Research Board's (TRB’s) Airport Cooperative Research Program (ACRP) undertook two research studies aimed at providing an overview of the technologies and potential societal changes, along with practical guidelines and tools to assess and improve readiness. This article summarizes ACRP Research Report 243: Urban Air Mobility: An Airport Perspective and ACRP Research Report 261: Advanced Air Mobility and Community Outreach: A Primer for Successful Stakeholder Engagement.]]></description>
      <pubDate>Wed, 01 Jul 2026 15:07:13 GMT</pubDate>
      <guid>https://trid.trb.org/View/2709543</guid>
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      <title>Washington State Wildlife Crossings: Restoring Habitat Connectivity While Improving Motorist Safety</title>
      <link>https://trid.trb.org/View/2709495</link>
      <description><![CDATA[Incorporating wildlife crossing structures into transportation infrastructure did not become standard practice at Washington State Department of Transportation (Washington State DOT) until statewide habitat connectivity priorities were established and the performance of several in-state wildlife crossing structures were monitored and reported. This article written by the habitat connectivity biologist in the Washington State DOT Fish and Wildlife Program discusses: (1) the Washington Habitat Connectivity Action Plan (WAHCAP) a prioritization framework that identifies areas along the state highway system that would benefit most from the construction of wildlife crossing structures; (2) implementing wildlife crossing structures through retrofitting, within larger transportation projects, or as standalone projects; and (3) long-term monitoring of wildlife crossing structures. Specific Washington State DOT wildlife crossings are highlighted, such as, I-90's eleven large wildlife crossing structures, wildlife fencing installation along U.S. Hwy 97 to protect mule deer, and a standalone wildlife crossing on SR-20 to prevent elk-vehicle collisions.]]></description>
      <pubDate>Wed, 01 Jul 2026 15:07:13 GMT</pubDate>
      <guid>https://trid.trb.org/View/2709495</guid>
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      <title>2026 TRB Annual Meeting Highlights: Spotlight on the Future of Transportation</title>
      <link>https://trid.trb.org/View/2681176</link>
      <description><![CDATA[More than 10,500 transportation professionals from around the world gathered in Washington, DC, for the 105th Transportation Research Board (TRB) Annual Meeting, held January 11-15, 2026. Sessions and workshops addressed topics such as digitization and artificial intelligence-machine learning in the rail environment, preventing vessel allision impacts on bridges, and air traffic management modernization. This article includes photographs and highlights from the meeting including awards presented and an introduction to the 2026 chair and 2026 vice chair of the TRB Executive Committee.]]></description>
      <pubDate>Thu, 02 Apr 2026 15:16:37 GMT</pubDate>
      <guid>https://trid.trb.org/View/2681176</guid>
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      <title>NCHRP Research Report 1152: Leveraging AI and Big Data to Enhance Safety Analysis</title>
      <link>https://trid.trb.org/View/2678815</link>
      <description><![CDATA[National Cooperative Highway Research Program's (NCHRP's) Project 17-100 explored ways to harness artificial intelligence and data from traffic cameras, automated vehicles, and other systems to evaluate and enhance traffic safety. This article looks at the research design and phases, pilot demonstrations, deliverables, and agency application. Application examples include: automated streetlight inventory from street-view imagery; turning speeds and trajectories from intersection video analytics; inference of vehicle volumes and types, classified by length, from single loop detectors; turning-movement estimation from connected-vehicle telemetry; lane-marking and width extraction from lidar; traffic-sign detection and recognition from roadway video logs; multiscale pedestrian detection from mounted surveillance cameras; and road-surface condition analytics from on-site edge computing devices. The primary deliverable was a practitioner-focused user’s guide, NCHRP Research Report 1152: Leveraging Artificial Intelligence and Big Data to Enhance Safety Analysis: A Guide. Agencies can use the guide to translate safety questions into appropriate datasets and model designs, adopt a planning-first pathway for machine learning, and implement tested workflows across the full data life cycle from acquisition through deployment.]]></description>
      <pubDate>Thu, 02 Apr 2026 15:16:37 GMT</pubDate>
      <guid>https://trid.trb.org/View/2678815</guid>
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      <title>Transportation's Role in Building and Sustaining a Competitive Economy</title>
      <link>https://trid.trb.org/View/2678783</link>
      <description><![CDATA[This article includes highlights from a Fall 2025 webinar hosted by the Transportation Research Board focused on how transportation supports economic growth and supply chain resilience. The webinar featured three presenters: (1) Rolf Schmitt, Bureau of Transportation Statistics, discussed the different roles that transportation plays in the economy and the use of data to support transportation investment and decision making; (2) Paul Bingham, S&P Global Market Intelligence, focused on businesses’ supply chain logistics; and (3) Carrie Kissel, National Association of Development Organizations, focused on rural transportation and its effect on the overall health of the U.S. economy. The webinar video and PowerPoint slides are available at  https://www.nationalacademies.org/projects/TRB-TRB%20EO-25-P-659/event/45884]]></description>
      <pubDate>Thu, 02 Apr 2026 15:16:37 GMT</pubDate>
      <guid>https://trid.trb.org/View/2678783</guid>
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    <item>
      <title>NCHRP Research Report 1115: In Case of Emergency: Easing Weight Limits for Commercial Trucks</title>
      <link>https://trid.trb.org/View/2678790</link>
      <description><![CDATA[The Texas A&M Transportation Institute recently concluded a comprehensive study to address the challenges state agencies face in managing regulatory relief for overweight commercial motor vehicles transporting supplies during emergencies. The research aimed to establish a unified approach to emergency management, focusing on the definitions of emergency and emergency commodities, identifying successful practices, and formulating a decision framework tailored to different emergency scenarios. The study, conducted under National Cooperative Highway Research Program (NCHRP) Project 3-13(05), “Regulatory Relief of Commercial Vehicle Weight Requirements for Emergency Transportation of Critical Commodities,” and resulting guide highlighted the importance of streamlining special permits in emergency situations. This need became apparent during the COVID-19 pandemic, when rapid changes in commerce increased demand on the freight community to deliver emergency supplies and goods amid uncertainty. The study noted the challenges posed by the lack of uniformity in permit regulations between neighboring states and within states that have multiple entities responsible for infrastructure ownership, operation, and local oversight. The study culminated in the creation of a comprehensive guide—NCHRP Research Report 1115: Transporting Freight in Emergencies: A Guide on Special Permits and Weight Requirements—that integrates best practices and essential resources.]]></description>
      <pubDate>Thu, 02 Apr 2026 15:16:37 GMT</pubDate>
      <guid>https://trid.trb.org/View/2678790</guid>
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    <item>
      <title>BTSCRP Research Report 5: Tracking Traffic Records Data: Challenges and Strategies for Success</title>
      <link>https://trid.trb.org/View/2678772</link>
      <description><![CDATA[To compare safety outcomes across jurisdictions, data must be consistently structured. Yet, in many parts of the United States, traffic records are collected and stored inconsistently, even within the same state, making cross-jurisdiction comparisons difficult or impossible. The ability of state and local highway officials to track traffic citations through the judicial process is critical to identifying high-risk drivers and supporting systemic safety improvement. The Transportation Research Board's (TRB’s) Behavioral Traffic Safety Cooperative Research Program (BTSCRP) Project BTS-04, published as BTSCRP Research Report 5: Strategies to Improve State Traffic Citation and Adjudication Outcomes, was launched to identify challenges and potential solutions in traffic records management and to produce a practical toolkit for agencies and states. This article summarizes the project’s background, methods, and key findings including strategies for transitioning to digital traffic-records systems.]]></description>
      <pubDate>Thu, 02 Apr 2026 15:16:37 GMT</pubDate>
      <guid>https://trid.trb.org/View/2678772</guid>
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    <item>
      <title>Data and AI for Transportation: Insights from TRB’s 2025 DATA Conference</title>
      <link>https://trid.trb.org/View/2678726</link>
      <description><![CDATA[In late May 2025, the Transportation Research Board (TRB) Conference on Data and AI for Transportation Advancement (DATA), gathered transportation professionals to discuss how artificial intelligence (AI) will transform the way people and goods move. The conference included sessions covering topics such as machine learning for traffic operations, digital twins, responsible data use, the need for training and organizational support, the energy costs of data centers and generative AI, and how AI can prevent crashes. In addition, field visits to the Microsoft campus in Redmond, Washington, and the University of Washington's Smart Transportation and Applications Research (STAR) Lab highlighted academic breakthroughs and their applications. If one theme tied the entire conference together, it was safety. Whether the focus was predicting crashes, detecting incidents, or optimizing traffic operations, speakers reminded attendees that the real purpose of AI in transportation is to reduce harm and save lives.]]></description>
      <pubDate>Thu, 02 Apr 2026 15:16:37 GMT</pubDate>
      <guid>https://trid.trb.org/View/2678726</guid>
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    <item>
      <title>Cooperative Research Programs Celebrated</title>
      <link>https://trid.trb.org/View/2635942</link>
      <description><![CDATA[Two units in the Transportation Research Board's (TRB’s) Cooperative Research Programs marked milestones this past fall. On September 10, the Airport Cooperative Research Program (ACRP) kicked off its 20th anniversary by receiving a 2025 Award of Excellence from the Michigan Aeronautics Commission and Michigan Department of Transportation (DOT). The anniversary salute continued on September 26 at the annual ACRP Day. The virtual event featured a panel discussion and opportunities for participants to share success stories about implementing research-based practices to improve operations, safety, and efficiency. On October 1, the Transit Cooperative Research Program (TCRP) also featured a special event at this year’s TCRP Day: a live, in-person taping of the Transit Unplugged podcast. A panel of transportation professionals and host, Paul Comfort, explored the critical role of research in shaping the future of public transit, and TCRP’s crucial role in delivering actionable research on subjects ranging from fare policy to safety to workforce development that affect millions of people daily.]]></description>
      <pubDate>Tue, 06 Jan 2026 08:59:30 GMT</pubDate>
      <guid>https://trid.trb.org/View/2635942</guid>
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    <item>
      <title>Connecting the West: Three State DOTs Team Up for Safety Innovations</title>
      <link>https://trid.trb.org/View/2627341</link>
      <description><![CDATA[In June 2024, the Utah Department of Transportation (Utah DOT) received a $20 million grant from the U.S. Department of Transportation (U.S. DOT) to establish the Connecting the West Program. This funding enables Utah, Colorado, and Wyoming DOTs, as well as other partners, to implement innovative smart transportation technologies that can save lives and increase mobility. Through multiple real-world applications of vehicle-to-everything (V2X) technologies, Utah DOT is creating a digital seat belt that advances its goal of zero fatalities on the state’s roads. Application examples include LiDAR technology that alerts drivers to pedestrians and cyclists at intersections; signal preemption and priority for snowplows, emergency vehicles, and transit buses; and traveler information messages with warnings about icy roads and lane closures. The collaboration of the three state DOTs and partners ensures that these applications will be interoperable across state lines and improve the overall safety of the transportation network.]]></description>
      <pubDate>Tue, 06 Jan 2026 08:59:30 GMT</pubDate>
      <guid>https://trid.trb.org/View/2627341</guid>
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    <item>
      <title>Using Virtual Reality to Boost Pedestrian Safety</title>
      <link>https://trid.trb.org/View/2628299</link>
      <description><![CDATA[Researchers at Toronto Metropolitan University in Toronto, Ontario, Canada, are pioneering a novel approach to improving pedestrian safety: using virtual reality to illuminate behavior. In a first-of-its-kind study, a team from the university’s Laboratory of Innovation in Transportation (LiTrans) outfitted 171 participants with virtual reality goggles and sweat-detecting sensors to track their stress responses as they navigated across an immersive, computer-generated street that simulated driving and cycling interactions. Since stress is known to affect decision making, capturing emotional reactions to test environments in real time could yield clues for reducing midblock crossings and other risky pedestrian behavior, as well as designing safer streets. In addition, by collecting behavioral data from pedestrians, virtual reality experiments help inform deep-learning models that can predict street-crossing behavior and train self-driving vehicles to react.]]></description>
      <pubDate>Tue, 06 Jan 2026 08:59:30 GMT</pubDate>
      <guid>https://trid.trb.org/View/2628299</guid>
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    <item>
      <title>Time for Reform: The U.S. Coast Guard’s Certificate of Compliance Program for Liquefied Gas Carriers</title>
      <link>https://trid.trb.org/View/2627340</link>
      <description><![CDATA[In 2021, Congress, concerned about the shortage of U.S. Coast Guard (USCG) marine inspectors and other inspection challenges, requested that the National Academies study the USCG’s ability to address the growth in liquefied gas exports, as well as the safety compliance of associated foreign tank ships when loading these exports for transport overseas. The resulting study, Transportation Research Board (TRB) Special Report 350: Reforming the Coast Guard’s Certificate of Compliance Program for Liquefied Gas Carriers: Promoting Efficient Implementation and Safety Effectiveness, found that USCG's Certificate of Compliance (COC) program for liquefied gas carriers is in need of reform. Some of the committee’s specific recommendations to Congress and USCG include extending the COC’s validity term to five years (in alignment with the duration of major international certificates), as well as enhancing its current Port State Control risk assessment and vetting capabilities.]]></description>
      <pubDate>Tue, 06 Jan 2026 08:59:30 GMT</pubDate>
      <guid>https://trid.trb.org/View/2627340</guid>
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