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    <title>Transport Research International Documentation (TRID)</title>
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    <atom:link href="https://trid.trb.org/Record/RSS?s=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" rel="self" type="application/rss+xml" />
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    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
    <docs>http://blogs.law.harvard.edu/tech/rss</docs>
    <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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      <link>https://trid.trb.org/</link>
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    <item>
      <title>Research on Multi-Condition Topology Optimization of Transport Ship Pillar Structure</title>
      <link>https://trid.trb.org/View/2778008</link>
      <description><![CDATA[Structural optimization in shipbuilding represents a significant research focus within the fields of naval architecture and marine engineering. This study investigates multi-condition topological optimization for the deck pillar region of a transport ship's sectional structure. A mechanical model incorporating six typical load conditions was developed, and the Analytical Hierarchy Process (AHP) was employed to quantify the weighting coefficients for each condition. This enabled multi-condition collaborative topological optimization of the pillar layout. The optimized configuration underwent model reconstruction and finite element verification. Results demonstrate that the proposed multi-condition collaborative topology optimization method effectively balances structural performance and weight reduction requirements while satisfying strength specifications. This method yields optimal pillar layouts meeting multi-condition constraints, providing a reference for multi-condition topology optimization studies in ship structures.]]></description>
      <pubDate>Wed, 16 Sep 2026 09:22:34 GMT</pubDate>
      <guid>https://trid.trb.org/View/2778008</guid>
    </item>
    <item>
      <title>Research on Online Zero-Point Calibration Technique for Ω-Shaped Coriolis Flowmeters in CCUS Applications</title>
      <link>https://trid.trb.org/View/2777974</link>
      <description><![CDATA[The Ω-shaped Coriolis flowmeter, owing to its suitability for high-pressure and                     wide-temperature conditions, has become the preferred device for CO2                     metering in CCUS-EOR projects. In practical applications, however, the volatile                     nature of operating pressures and temperatures triggers a persistent zero-point                     drift. This instability creates a ripple effect: it not only degrades metering                     precision but also fundamentally undermines the equitable basis of carbon                     trading markets. This study, through theoretical analysis, fluid-structure                     coupling simulation, and experiments, deeply investigates the patterns of                     zero-point drift in Ω-shaped Coriolis flowmeters and corresponding correction                     methods. The research reveals that the asymmetry of the measuring tube structure                     is the primary cause of zero-point drift, with changes in the vibration                     frequency of the measuring tube directly influencing the zero-point value,                     leading to the establishment of a related zero-point drift model. Based on the                     asymmetric structure of a DN15 Ω-shaped Coriolis flowmeter, simulations were                     performed to model the zero-point variation patterns under different pressures                     and temperatures using CO2 as the fluid, thereby verifying the                     effectiveness of the zero-point drift model. To validate our approach, we                     executed targeted zero-point experiments, employing the proposed model to                     predict zero-point shifts across a broad spectrum of pressures and temperatures.                     By integrating these predictions into a refined correction framework, we                     successfully neutralized drift-induced errors. These findings offer both a                     robust theoretical pillar and a practical toolkit for high-precision                     CO2 accounting, ultimately safeguarding the economic integrity of                     carbon trading within CCUS-EOR initiatives.]]></description>
      <pubDate>Wed, 16 Sep 2026 09:22:34 GMT</pubDate>
      <guid>https://trid.trb.org/View/2777974</guid>
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    <item>
      <title>Real-time Vehicle Speed Detection Based on YOLOv11 and DeepSORT</title>
      <link>https://trid.trb.org/View/2777887</link>
      <description><![CDATA[The technology of real-time and effective vehicle speed detection is considered a key technology to improve traffic monitoring efficiency and traffic safety management grade. To address the limitations of traditional speed detection schemes—including reliance on dedicated hardware, poor environmental adaptability, and high construction and maintenance costs—this paper proposes a r10eal-time vehicle speed detection system based on YOLOv11 and the DeepSORT algorithm. The proposed system uses the YOLOv11 target detection algorithm as its primary model. DeepSORT multi-target tracking technology is integrated to enhance tracking performance. Speed measurement is implemented using a virtual detection line. This approach enables accurate vehicle detection, continuous tracking, and real-time speed measurement within video frames. Through the experiments, the result shows that the improved YOLOv11n model reaches mAP@0.5 of 0.982 and a recall rate of 0.956 in the test set, higher than the YOLOv8n and YOLOv5s models. The speed detection error can be restricted to 3 km/h, satisfying the real-time detection need. There is no need for road surface modification, and the detection system has a flexible layout, providing a dynamic basis for traffic law enforcement and traffic data support for road construction and traffic control optimization.]]></description>
      <pubDate>Wed, 16 Sep 2026 09:17:33 GMT</pubDate>
      <guid>https://trid.trb.org/View/2777887</guid>
    </item>
    <item>
      <title>Further Investigation of Brake Squeal: Effect of (Inboard/Outboard) Pads Property Differential</title>
      <link>https://trid.trb.org/View/2778033</link>
      <description><![CDATA[It was reported earlier that the wear differential between the inboard pad and the outboard pad leads to brake squeal generation. The (inboard/outboard) pads wear differential can occur due to hardware issues such as brake pad drag and/or two different wear rates of the (I/O) pads, which is caused by two different material properties of the pads although the pad formula may be the same. It is found that (I/O) pads compressibility differential/hardness differential/friction differential are all interrelated and that they contribute to brake squeal generation in addition to the inboard pad tangential/radial taper wear. A method has been found to separate the inboard pad friction and the outboard pad friction and to estimate each friction coefficient.]]></description>
      <pubDate>Wed, 16 Sep 2026 09:13:15 GMT</pubDate>
      <guid>https://trid.trb.org/View/2778033</guid>
    </item>
    <item>
      <title>Sustaining aviation: A decision-tree framework for recycling aircraft cabin interiors</title>
      <link>https://trid.trb.org/View/2697003</link>
      <description><![CDATA[The aviation industry faces pressure to reduce its environmental footprint while maintaining cost efficiency, regulatory and safety compliance. This research investigates how recyclability, as a key strategy within circular economy principles, can be implemented for aircraft interior parts. Employing a multi-method approach, including literature analysis, field research, stakeholder interviews, and a case study, this research identifies critical enablers and barriers to recycling aircraft interior parts. The findings demonstrate that recycled materials can meet key fire safety standards, supporting their potential for reuse in safety-relevant aircraft applications. A decision-tree framework was developed to assess the recycling potential of interior parts across maintenance, repair, and overhaul (MRO) operations. The research concludes that advancing recyclability within aircraft interiors aligns with circular economy ambitions and is both technically feasible and economically advantageous, offering a scalable pathway to enhance sustainability and operational efficiency in the aviation sector.]]></description>
      <pubDate>Tue, 18 Aug 2026 14:12:02 GMT</pubDate>
      <guid>https://trid.trb.org/View/2697003</guid>
    </item>
    <item>
      <title>Feasibility study on enhancing the circularity of truck cabins (CIRCAB)</title>
      <link>https://trid.trb.org/View/2751993</link>
      <description><![CDATA[The shift to a Circular Economy (CE) is crucial for addressing resource scarcity, price volatility, and environmental impacts. By 2030, CE could reduce the EU's material consumption by 32% and greenhouse gas emissions by 48%. However, remanufacturing which is a key strategy in CE remains low, with a remanufacturing intensity of just 1.1%, in the EU automotive sector. SCANIA, like other OEMs, remanufactures limited components, while truck cabins, with their complex material mixes and high emissions, remain largely unexplored in terms of circularity. Most cabin components, including up to 300 kg of plastics per cabin, are incinerated or landfilled at end-of-life (EoL). There is an economic and environmental opportunity in reusing, refurbishing, or recycling cabin components. To optimize cabin circularity and business potential, understanding current material flows and developing a circular business model is critical. The CIRCAB project aimed at studying the feasibility of enhancing cabin circularity by creating an ecosystem with value chain partners to optimize material handling at every stage. The CIRCAB project concluded with its intended outcomes, including extensive knowledge about the current state of plastic flows across different actors, industrial best practices, business drawbacks and the potential for reusing plastic components from production and end-of-life (EoL) trucks, technological limitations and opportunities in recycling, and legal frameworks promoting the circularity of plastics used in the automotive sector. The CIRCAB project has concluded with a strong urge and commitment for a radical shift that is needed to enhance the circularity of plastic components.]]></description>
      <pubDate>Fri, 07 Aug 2026 08:35:09 GMT</pubDate>
      <guid>https://trid.trb.org/View/2751993</guid>
    </item>
    <item>
      <title>Experimental Study on the Temperature Impact of a Typical Cabin Fire on Adjacent Cabins</title>
      <link>https://trid.trb.org/View/2742662</link>
      <description><![CDATA[The cabins of ships are mainly made of steel. When a fire breaks out, the temperature inside the cabin rises rapidly, and an extensive body of heat spreads through the bulkheads to adjacent cabins. Understanding the variation law of the temperature field in adjacent compartments after a fire occurs in the compartments is of great significance for the research on the thermal safety of ship compartments. This paper designs an L-shaped cabin test system. We conduct fire tests of different scales and obtain the temperature distribution of adjacent compartments. The test results show that as the fire area in the pool keeps rising, the temperature in the adjacent compartments keeps rising. Due to the fact that an extensive body of high-temperature smoke produced by combustion is suspended at the ceiling of the compartment of fire, the temperature of the vertically adjacent compartments is higher than that of the horizontally adjacent compartments.]]></description>
      <pubDate>Mon, 03 Aug 2026 15:42:12 GMT</pubDate>
      <guid>https://trid.trb.org/View/2742662</guid>
    </item>
    <item>
      <title>Simulation of Compression and Bending Performance of GFRP Rod of Composite Hollow Post Insulator</title>
      <link>https://trid.trb.org/View/2742493</link>
      <description><![CDATA[Composite hollow core station post insulators utilize fiber-reinforced epoxy resin as the core rod material, offering advantages such as high specific strength, high specific stiffness, and excellent fatigue resistance. This enables them to effectively meet the flexible, variable, and complex operational demands of modern power systems. However, composite materials exhibit anisotropic characteristics, resulting in complex mechanical properties. Additionally, the core rod of hollow pillar composite insulators is typically fabricated through a spiral-plus-circumferential winding process, which significantly complicates structural design and computational analysis. This study establishes a finite element model of the hollow pillar composite insulator core rod in ABAQUS. It analyzes the influence of fiber content on composite material parameters and performs finite element numerical calculations to examine the stress state of core rods with different winding angles under compressive and bending loads. The research findings provide theoretical support for the optimized structural design of hollow pillar composite insulator core rods.]]></description>
      <pubDate>Mon, 03 Aug 2026 15:15:58 GMT</pubDate>
      <guid>https://trid.trb.org/View/2742493</guid>
    </item>
    <item>
      <title>Improvement of End-of-Life Vehicle Chassis Number Reading Software Using AI-OCR</title>
      <link>https://trid.trb.org/View/2695920</link>
      <description><![CDATA[Starting in April 2026, a new regulation will require accurate management of parts removed from end-of-life vehicles (ELVs). This demands precise reading of vehicle identification numbers (VINs) and tracking of related part information. To address this, we developed VIN reading software, but its recognition accuracy was initially inadequate. In this study, we aimed to improve the software's accuracy. Through testing and analysis, we succeeded in enhancing recognition performance. Additionally, we identified new challenges, such as the impact of VIN plate design on reading accuracy, which must be considered in future improvements.]]></description>
      <pubDate>Fri, 31 Jul 2026 09:23:51 GMT</pubDate>
      <guid>https://trid.trb.org/View/2695920</guid>
    </item>
    <item>
      <title>3D Shape Generative AI for Thin Sheet Metal Components under Geometric Boundary Shape Constraints</title>
      <link>https://trid.trb.org/View/2695906</link>
      <description><![CDATA[This study proposes a novel image-based shape generative model for automotive thin sheet metal components that generates internal shape under geometric shape constraints. By representing boundaries with B-spline curves and internal shapes as differential height maps, the method ensures consistency at the edges and enables diverse shape generation even with limited datasets. The results demonstrate the model's practical applicability and ability to produce varied boundary-conforming shapes. Applied to a vehicle hood inner panel, the generated shapes were successfully integrated into the actual vehicle FE model with only some modifications.]]></description>
      <pubDate>Fri, 31 Jul 2026 09:23:51 GMT</pubDate>
      <guid>https://trid.trb.org/View/2695906</guid>
    </item>
    <item>
      <title>Effects of endwall slot jet angles on the performance of high-load compressor cascade</title>
      <link>https://trid.trb.org/View/2698266</link>
      <description><![CDATA[The three-dimensional corner separation represents a major obstacle to enhance performance of a high-load compressor cascade. To tackle this challenge, we conducted a computational fluid dynamics (CFD) numerical simulation to investigate impact of the endwall slit jet parameters on performance of the compressor cascade. Through numerical analysis, we found that the endwall slot jets substantially suppressed the corner separation and reduced flow loss. At a jet flow rate comprising a mere 0.435% of the mainstream flow rate, a 30° combined jet angle can cause a drop of 27.63% in losses and an increase of 9.2% in the static pressure coefficient. The primary mechanism behind the effectiveness of endwall slot jets lies in their ability to reduce flow losses and improve cascade performance. This is achieved by suppressing secondary flow in the endwall region, facilitating the mixing of low-energy fluid with the mainstream, proficiently regulating the development of passage vortices and inducing vortices.]]></description>
      <pubDate>Wed, 29 Jul 2026 09:16:18 GMT</pubDate>
      <guid>https://trid.trb.org/View/2698266</guid>
    </item>
    <item>
      <title>Lightweight design of automotive parts based on the FPTO method</title>
      <link>https://trid.trb.org/View/2698262</link>
      <description><![CDATA[Topology optimisation is a method to maximise or minimise an objective function by optimising material distribution under design constraints. In the theoretical research of topology optimisation, most algorithms are developed on regular geometric models in software such as MATLAB. However, applying these findings directly to complex structures with irregular geometries in engineering is challenging. Optimisation of such structures relies on commercial software using density-based methods, hindering open algorithm research. The floating projection topology optimisation (FPTO) is a stable, efficient method producing good results. This study introduces the FPTO principles and investigates its integration on the MATLAB-ABAQUS platform, including conducting analysis in ABAQUS, performing optimisation solution and result visualisation in MATLAB, and facilitating data exchange. The boundaries of the topology structure are smoothed to better meet actual engineering requirements. This research explores the application of FPTO to automotive components, achieving lightweight designs for wheel hubs and control arms, offering an effective engineering solution.]]></description>
      <pubDate>Wed, 29 Jul 2026 09:16:18 GMT</pubDate>
      <guid>https://trid.trb.org/View/2698262</guid>
    </item>
    <item>
      <title>Determination of the Environmental Component Life Cycle of a Vehicle</title>
      <link>https://trid.trb.org/View/2579757</link>
      <description><![CDATA[The authors explored a complete life cycle model and examined the potential for developing information systems to support car operation processes’ organizational and functional aspects. They integrated information related to the stages of a car's life cycle and its technical control systems, which are essential for monitoring and diagnosing the condition of vehicles. Their study is based on a comprehensive approach considering the interaction between the “car - driver - operating conditions - infrastructure for car operation (including transport and highways).” They focused on implementing “systems with full responsibility,” such as FADEC (Full Authority Digital Electronic Control) systems, aiming to create integrated onboard systems for managing the operational processes of various vehicle components. The research also looked into control and diagnostic systems, as well as systems for organizational and functional support, such as IPV (Impact Protection Vehicle), CALS (Continuous Acquisition and Life Cycle Support), and PLM (Product Lifecycle Management). The authors proposed and developed various information software complexes (ISC) and algorithms for their operation. They presented the results of their studies on fuel consumption under controlled experimental conditions.]]></description>
      <pubDate>Mon, 27 Jul 2026 11:16:40 GMT</pubDate>
      <guid>https://trid.trb.org/View/2579757</guid>
    </item>
    <item>
      <title>The Decision-Making Framework for Mastering the Maintenance of Aircraft Components</title>
      <link>https://trid.trb.org/View/2581481</link>
      <description><![CDATA[The paper presents a novel decision-making framework for assessing the feasibility of internalizing aircraft component maintenance operations. The framework addresses a critical challenge faced by airlines and maintenance organizations in optimizing their maintenance strategies. By integrating multiple data sources and employing advanced algorithms, the proposed system provides a comprehensive approach to evaluating the potential for in-house component maintenance. The framework incorporates three key elements: a database of potential maintenance service providers, an assessment of component maintenance volumes, and an analysis of required resources. A central algorithm processes this data to evaluate the feasibility of internalizing maintenance for specific components. The study also introduces a financial assessment model to quantify the economic viability of such initiatives. The framework culminates in a tripartite classification system, offering clear guidance on which components are suitable for immediate internalization, which require further study, and which are not recommended for in-house maintenance. This research contributes to the field of aviation maintenance by providing a structured, data-driven approach to strategic decision-making, potentially leading to improved operational efficiency and cost-effectiveness in aircraft maintenance operations.]]></description>
      <pubDate>Mon, 27 Jul 2026 11:16:39 GMT</pubDate>
      <guid>https://trid.trb.org/View/2581481</guid>
    </item>
    <item>
      <title>Design and Prototyping of a Winding Reconfiguration System for Electric Traction Applications</title>
      <link>https://trid.trb.org/View/2724697</link>
      <description><![CDATA[Battery electric vehicles (BEVs) place high demands on electric drives across a wide operating range: high efficiency in customer-related driving scenarios and maximum performance in dynamic driving modes. A promising solution to this challenge is the dynamic reconfiguration of the electric machine winding configuration between series and parallel mode, enabling optimal electromagnetic properties of the drive for different operating points. This paper presents the design and prototyping of an electronic winding reconfiguration system for high-performance traction applications. The hardware prototype has been designed and built, but has not yet been tested, which is why the results are based on simulations. Unlike mechanical winding reconfiguration concepts, which have long transition times and cannot switch under load, the proposed system enables fast and safe load transitions between the winding configurations. The study describes the topology and hardware of the switching unit, including the integration of power semiconductors, the required connection assemblies, cooling concept and the control of the power electronics. A novel control strategy is presented that ensures continuous current paths during switching, prevents overvoltage in the windings and minimises torque interruptions. To this end, the active short-circuit operation of the electric drive is taken into account. Simulations show that the system achieves efficiency gains of up to two percentage points in the partial load range while maintaining its full performance. The additional losses caused by the switching unit remain low in the partial load range, ensuring a net efficiency gain. The proposed concept offers a practical approach to extending the range of BEV drives by dynamically reconfiguring the windings of the electric machine, thereby improving partial load efficiency without compromising performance.]]></description>
      <pubDate>Tue, 21 Jul 2026 11:41:23 GMT</pubDate>
      <guid>https://trid.trb.org/View/2724697</guid>
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