<rss version="2.0" xmlns:atom="https://www.w3.org/2005/Atom">
  <channel>
    <title>Transport Research International Documentation (TRID)</title>
    <link>https://trid.trb.org/</link>
    <atom:link href="https://trid.trb.org/Record/RSS?s=PHNlYXJjaD48cGFyYW1zPjxwYXJhbSBuYW1lPSJkYXRlaW4iIHZhbHVlPSJhbGwiIC8+PHBhcmFtIG5hbWU9InN1YmplY3Rsb2dpYyIgdmFsdWU9Im9yIiAvPjxwYXJhbSBuYW1lPSJ0ZXJtc2xvZ2ljIiB2YWx1ZT0ib3IiIC8+PHBhcmFtIG5hbWU9ImxvY2F0aW9uIiB2YWx1ZT0iMCIgLz48L3BhcmFtcz48ZmlsdGVycz48ZmlsdGVyIGZpZWxkPSJpbmRleHRlcm1zIiB2YWx1ZT0iJnF1b3Q7QWxnZXJpYSZxdW90OyIgb3JpZ2luYWxfdmFsdWU9IiZxdW90O0FsZ2VyaWEmcXVvdDsiIC8+PC9maWx0ZXJzPjxyYW5nZXMgLz48c29ydHM+PHNvcnQgZmllbGQ9InB1Ymxpc2hlZCIgb3JkZXI9ImRlc2MiIC8+PC9zb3J0cz48cGVyc2lzdHM+PHBlcnNpc3QgbmFtZT0icmFuZ2V0eXBlIiB2YWx1ZT0icHVibGlzaGVkZGF0ZSIgLz48L3BlcnNpc3RzPjwvc2VhcmNoPg==" rel="self" type="application/rss+xml" />
    <description></description>
    <language>en-us</language>
    <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>
    <image>
      <title>Transport Research International Documentation (TRID)</title>
      <url>https://trid.trb.org/Images/PageHeader-wTitle.jpg</url>
      <link>https://trid.trb.org/</link>
    </image>
    <item>
      <title>Traffic Flow Modeling Using Time Series Models Based Upon IV Estimator Technique</title>
      <link>https://trid.trb.org/View/2670869</link>
      <description><![CDATA[Road traffic modeling is a frequently used computational technique to understand and predict the behavior of real vehicles on roads. Our aim in this study is to develop a mathematical model using instrumental variables (IV) for traffic movement using road traffic determination systems. The model is identified using an algorithm with the smallest possible error constraint, and validated using time series methods, we used a real data measured by radar at the chosen location in our study: 79th National Road near Ahmed Hamani campus in Constantine, Algeria.]]></description>
      <pubDate>Thu, 20 Aug 2026 16:53:20 GMT</pubDate>
      <guid>https://trid.trb.org/View/2670869</guid>
    </item>
    <item>
      <title>Comparative Analysis of Train and Bus Performance: Factors Influencing Public Transport Choices in Algeria</title>
      <link>https://trid.trb.org/View/2579418</link>
      <description><![CDATA[Investment in and modernization of public transport systems have improved the quality of life for citizens in several cities worldwide. However, efficient mobility requires balanced management of different public transport modes. This study assesses the performance of train and bus systems in Algeria to determine which mode is more attractive to passengers and to identify the factors influencing their modal choices. The methodology used in this article combines data from the National Office of Statistics (ONS), the National Railway Transport Company (SNTF), the Algerian Bus Station Management Company (SOGRAL), and a qualitative passenger survey. The analysis is structured into three parts. The first part presents the annual train passengers’ number. The second part, compares passengers’ numbers for train and bus on the same itinerary. While the third part evaluates the two transportation means based on five key performance indicators: accessibility, ticket price, comfort and safety, reliability, and travel time. Results revealed a significant imbalance between the number of passengers using the train and those using the bus, with bus users far outnumbering train users. Furthermore, travel time and operating hours emerge as the primary determinants of passengers’ modal preferences. The study concludes with recommendations to achieve a balance between these two modes of transport and to enhance their service quality.]]></description>
      <pubDate>Mon, 27 Jul 2026 11:16:41 GMT</pubDate>
      <guid>https://trid.trb.org/View/2579418</guid>
    </item>
    <item>
      <title>Mobility Justice and Everyday Transport Practices in Chief, Algeria: A Neighborhood-Scale Analysis of Inequality and Sustainable Mobility</title>
      <link>https://trid.trb.org/View/2691504</link>
      <description><![CDATA[Urban mobility and spatial planning policies are intrinsically linked and jointly contribute to social equity as part of an integrated urban system. Developing urban mobility therefore requires careful consideration of residents’ everyday practices and perceptions, alongside the integration of emerging transport modes and technologies. While research on mobility in Algeria has largely focused on traffic engineering and motorization, the social dimensions of everyday transport practices remain insufficiently explored. This study addresses this gap by analyzing neighborhood-scale mobility patterns in Zeboudj, a district of Chlef (194 ha), using a Household Travel Survey (HTS) conducted with 100 households. The results reveal marked inequalities in access to mobility. Students and salaried workers benefit from higher levels of motility, mainly through private cars and collective taxis, whereas women, retirees, and low-income groups remain constrained by limited, costly, and poor-quality public transport. Urban form and planning deficits—including narrow streets, unplanned urban expansion, and the absence of pedestrian and cycling infrastructure—further reinforce car dependence and congestion. At the same time, residents demonstrate strong environmental awareness and express support for alternative and more sustainable mobility options, although these aspirations remain largely unrealized in everyday practice. By adopting a neighborhood-scale perspective, this article contributes to debates on mobility justice and spatial inequality in medium-sized cities of the Global South. It shows how everyday mobility practices reflect broader challenges of sustainable and inclusive urban development and offers practical insights for planners and policymakers seeking to promote more equitable mobility in Algerian cities.]]></description>
      <pubDate>Wed, 22 Jul 2026 16:59:40 GMT</pubDate>
      <guid>https://trid.trb.org/View/2691504</guid>
    </item>
    <item>
      <title>Perception of Transport-Territory and Transport-City Analysis: Strategies for Mediterranean Cities in Algeria and Italy</title>
      <link>https://trid.trb.org/View/2698298</link>
      <description><![CDATA[The transport sector is a crucial lever for economic, social, and territorial development, playing a key role in regional integration and population mobility. In Algeria, significant efforts are underway to modernize transport infrastructure. These initiatives address the challenges of rapid urbanization and growing demand for mobility, while promoting ecological and sustainable solutions. At the same time, Italy, with its advanced infrastructure, is focusing on sustainability and innovation to modernize an already well-developed transport network, including metros, streetcars, high-speed trains, and freeways. The two countries illustrate complementary dynamics: Algeria is undertaking ambitious projects to address existing gaps, while Italy is adapting its infrastructure to contemporary challenges such as managing urban congestion and upgrading aging assets. Finally, sustainability and social equity lie at the core of transport policies in both Algeria and Italy, with accessible and environmentally friendly solutions aimed at reducing social inequalities and promoting more livable cities. These efforts reflect a transition toward transport systems that support a resilient and environmentally sustainable future.]]></description>
      <pubDate>Wed, 17 Jun 2026 16:14:27 GMT</pubDate>
      <guid>https://trid.trb.org/View/2698298</guid>
    </item>
    <item>
      <title>Public transport service accessibility index: a new approach incorporating residents’ location and transport capacity: a case study in NCSA (Algiers)</title>
      <link>https://trid.trb.org/View/2683128</link>
      <description><![CDATA[The aim of this paper is to develop an evaluation index for resident accessibility to public transport (PTAIR). This index expands over previous measures of public transport accessibility by incorporating additional parameters, specifically spatial resident distribution and transport capacity, with the objective of integrating service quality into accessibility assessment. Research that simultaneously accounts for population distribution and transport capacity as key indicators of accessibility remains limited. To address this gap, the proposed index was applied to the New City of Sidi-Abdallah (NCSA) in Algiers as a case study. Accessibility levels were evaluated and represented through maps generated using a geographic information system. The results reveal a significant mismatch between the transport system and the spatial distribution of residents, particularly in newly developed collective residential neighborhoods where access to public transport is either poor or very poor. These findings suggest that the PTAIR index can serve as a valuable tool for improving public transport planning by aligning accessibility more closely with resident distribution.]]></description>
      <pubDate>Wed, 20 May 2026 10:20:54 GMT</pubDate>
      <guid>https://trid.trb.org/View/2683128</guid>
    </item>
    <item>
      <title>Assessment of Service Quality in Public Transport Using an Underperformance Approach: A Case Study of Constantine, Algeria</title>
      <link>https://trid.trb.org/View/2686218</link>
      <description><![CDATA[The paper proposes a new approach to evaluating the quality of public transport based on underperformance analysis. This approach aims to identify actual service failures by combining objective data and user perceptions. In this context, the objective of this paper is to offer a more reliable evaluation tool adapted to the contexts of developing countries, where certain service deficiencies tend to be normalized. The proposed approach is applied to a real case study in Constantine public transport; a series of objective and subjective indicators are calculated on the basis of infractions provided by local authorities and user perceptions of the service. This approach thus allows for a better understanding of the sources of quality degradation and supports more effective decisions for improving public transport in order to achieve the overall objectives of sustainable mobility.]]></description>
      <pubDate>Thu, 02 Apr 2026 13:51:36 GMT</pubDate>
      <guid>https://trid.trb.org/View/2686218</guid>
    </item>
    <item>
      <title>Geotechnical Characterization of Dredging Sediments for Valorization in Road Embankments: Case of the Cheurfas Dam (Algeria)</title>
      <link>https://trid.trb.org/View/2192031</link>
      <description><![CDATA[In environmental geotechnics, the valorization of dredging sediments and their use in embankments is a way increasingly prospected by researchers these last years. It constitutes therefore a research orientation in harmony with the concept of sustainable development. This paper relates to the study of physico-chemical, mineralogical and mechanical properties of a sediment obtained by dredging in the Cheurfas dam (west of Algeria) and their influence on the hydro-mechanical behaviour in the case of their valorization in the design of road embankments. Various aspects were studied: (i) influence of the natural content of organic matter and salts on the mechanical properties (ii) influence of water content on the density and the strength of the material. With an aim of valorization, a treatment with sand, lime and cement proved to be necessary. Various formulations were elaborated in this direction. The paper presents a preliminary synthesis of the influence of the formulation on the mechanical behaviour.]]></description>
      <pubDate>Mon, 23 Mar 2026 15:24:24 GMT</pubDate>
      <guid>https://trid.trb.org/View/2192031</guid>
    </item>
    <item>
      <title>Analysis of the Pedestrians’ Behavior at a Signalized Multimodal Roundabout: A Case Study of Constantine City</title>
      <link>https://trid.trb.org/View/2627784</link>
      <description><![CDATA[This research paper aims at studying pedestrians’ behavior at a multimodal signalized roundabout to identify the real cause of their behaviors, and to propose several solutions. The methodology used in this research follows three phases. The initial phase involves analyzing the volume of pedestrians crossing the roundabout in all directions. The second phase focuses on knowing the pedestrians who do not respect the crosswalks. In the final phase, a questionnaire was administered to determine the causes of pedestrian behavior at the roundabout. The results show that almost half of the pedestrians in each direction do not use the pedestrian crossing. This was confirmed by 45.7% of the participants. Moreover, 75% of the respondents mentioned that the signals were unclear. This causes traffic congestion at the roundabout. The article recommends solutions to encourage pedestrians to use the crossings and improve traffic flow.]]></description>
      <pubDate>Tue, 27 Jan 2026 16:16:17 GMT</pubDate>
      <guid>https://trid.trb.org/View/2627784</guid>
    </item>
    <item>
      <title>BIM-GIS integrated hydrodynamic modeling for road flood risk assessment: A case study in Algeria’s Chiffa Wadi</title>
      <link>https://trid.trb.org/View/2622305</link>
      <description><![CDATA[Ensuring the reliability of road infrastructure under extreme flood conditions is critical for resilient transportation systems. This study proposes a hybrid framework integrating Building Information Modelling (BIM), Geographic Information Systems (GIS), and Hydrodynamic Modelling (HDM) to enhance predictive safety assessments for flood-prone transport networks. The framework highlights the concept of Flooded Road Height (FRH) as a reliability metric, which assesses road vulnerability to flooding by comparing flood depth and road elevation. The methodology was applied to Algeria’s Chiffa Wadi, a high-risk gorge environment prone to recurrent flash floods. A comparative analysis was conducted between a Conventional Hydrodynamic Model (C-HDM) and the integrated BIM-HDM framework. Results show that while both models identify the same critical area at PK 65.862, the C-HDM overestimates the flooded road height by over 65 % compared to the BIM-HDM. A quantitative validation against a historical flood event confirmed the superiority of the integrated framework: the BIM-HDM predicted the flood depth with a relative error of 3.8 %, compared to 71 % for the conventional model. This enhanced precision, resulting from the high-fidelity modelling of the infrastructure, enables a more reliable identification of vulnerability root causes and supports the development of targeted resilience strategies. The BIM-HDM framework facilitates the design of structural adaptation solutions through its interoperability with engineering software and the implementation of mitigation systems (early warning) based on a digital twin. While the C-HDM approach remains effective for basic assessments, BIM-HDM offers superior capabilities for predictive risk analysis, which is essential for planning reliable and secure infrastructure.]]></description>
      <pubDate>Mon, 26 Jan 2026 14:44:16 GMT</pubDate>
      <guid>https://trid.trb.org/View/2622305</guid>
    </item>
    <item>
      <title>Optimisation of Quay Crane Scheduling Problem at the Port of Algeria</title>
      <link>https://trid.trb.org/View/2407313</link>
      <description><![CDATA[More than 90% of world trade is doing by global maritime transport, with over 90,000 ships. This has favored the evolution of containerized freight transport and this has greatly contributed to the development of intermodal transport. These handling operations require a sharp look and a well adapted speed of decision to achieve the shortest possible ship handling time, to ensure the good deployment of these operations while synchronising them with the overall architecture of the port. This work aims to discuss the Quay Crane Scheduling Problem (QCSP), the main objective is to minimize the loading/ unloading time of the containers and therefore reduce the waiting time of the ships in the terminals, with the port of Bejaia in Algeria- as a concrete application, using mixed integer linear programming and genetic algorithm.]]></description>
      <pubDate>Tue, 28 Oct 2025 09:50:12 GMT</pubDate>
      <guid>https://trid.trb.org/View/2407313</guid>
    </item>
    <item>
      <title>Safe and secure accessibility to trails. results of a field survey considering gender-based differences</title>
      <link>https://trid.trb.org/View/2583112</link>
      <description><![CDATA[Long-distance walking itineraries are gaining increasing prominence due to their significant contribution to sustainable tourism mobility and the rediscovery of local territories. These trails promote physical and mental health, strengthen local communities and enhance cultural heritage. Ensuring safety and security is essential to foster broader participation and reduce constraints linked to perceived risks. Increasingly present among walkers, women face specific limitations and risks; these include the threat of violence, a factor which significantly influences their behaviour and participation.By analysing survey data from Italy, Austria and Algeria, this study examines the accessibility of walking routes and how accessibility is affected by risk perceptions - defined by international standards as varying by impact and likelihood. The application of a risk matrix highlights critical areas of perceived risk considering gender-based differences. The results reveal how men and women assess and respond differently to potential hazards, influencing their itinerary preparation and safety measures. The study highlights gender differences in risk perception, risk experiences, preparedness, and preferred interventions. These differences underscore the need for tailored approaches in trail planning and risk management to ensure inclusive, effective safety measures, aiming to encourage greater participation, especially among women.]]></description>
      <pubDate>Mon, 22 Sep 2025 08:49:25 GMT</pubDate>
      <guid>https://trid.trb.org/View/2583112</guid>
    </item>
    <item>
      <title>TariqAmn's Innovative Road Safety Paradigm through Smart Technology</title>
      <link>https://trid.trb.org/View/2475796</link>
      <description><![CDATA[In response to escalating road safety challenges within Algeria, marked by rising traffic volumes and urban development, the "TariqAmn Algeria" initiative emerges as a groundbreaking approach in traffic management. This study delineates the development and deployment of this innovative system, which leverages intelligent traffic signs, LiDAR (Light Detection and Ranging, using laser light to measure distances) radar, and proactive brake control technologies, embedded within a robust traffic management framework. The system's dynamic adaptation to real-time traffic conditions and its enforcement of speed compliance are central to its design. Rigorous evaluations through SUMO (Simulation of Urban Mobility, a traffic simulation software) simulations and field tests in high-risk urban settings affirm its efficacy, demonstrating a 60% reduction in traffic incidents and a 50% reduction in speeding violations. By marrying local cultural insights with cutting-edge technology, "TariqAmn Algeria" not only enhances immediate road safety but also establishes a new paradigm in traffic management systems. The findings illuminate the significant scalability potential of the system, promising broader applications in enhancing road safety and adherence to traffic regulations across various regions, such as densely populated urban areas, high-traffic corridors, and accident-prone black spots. This initiative underscores the critical role of Intelligent Transportation Systems (ITS) in modern road safety strategies and sets a precedent for future technological advancements in the field.]]></description>
      <pubDate>Fri, 31 Jan 2025 11:38:31 GMT</pubDate>
      <guid>https://trid.trb.org/View/2475796</guid>
    </item>
    <item>
      <title>Application of the IRAP Method Combined with GIS to Improve Road Safety on New Highway Projects in Algeria</title>
      <link>https://trid.trb.org/View/2475710</link>
      <description><![CDATA[This article aims to proactively predict high-risk accident areas in a new highway project in terms of its technical and geometric characteristics. The purpose of this study is to provide road project managers with better road safety assessment tools for the vehicle occupant category. The methodology used combines the International Road Assessment Program (IRAP) methodology and the Geographic Information System (GIS). The IRAP program enables the calculation and classification of risks for each 100-meter segment besides their categorization using a star rating; whereas, the GIS is used to map the risks and identify high-risk accident segments. This method was applied to a new highway project of 110 hectometres located in GHAZAOUET in Algeria. The results of the study revealed that this combined method is innovative in more than one way as it is an effective decision-making aid tool for road safety experts. It, therefore, makes it possible to target accident-prone sections in a faster way before carrying out on site road safety inspections. Technically speaking, this study shows that the existence of closely curved radii mixed at traffic speeds exceeding 80 km/h and the presence of road exits are the main factors affecting the safety of vehicle occupants. Speed control; thus, remains one among the cheapest measures to improve safety.]]></description>
      <pubDate>Fri, 24 Jan 2025 17:04:38 GMT</pubDate>
      <guid>https://trid.trb.org/View/2475710</guid>
    </item>
    <item>
      <title>A study of the nonlinear behaviour of the irregular Beni Haroun cable-stayed bridge to progressive seismic failure under SVGM</title>
      <link>https://trid.trb.org/View/2475184</link>
      <description><![CDATA[The progressive failure of the nonlinear irregular Cable-Stayed Bridges (CSBs) under Spatial Variability of Ground Motions (SVGM) counting seismic wave propagation, incoherence effect and site-response effect is investigated. A spectral representation method is used in order to develop a computer code. This code is used to simulate SVGM time histories to be compatible with an overall coherency function and a target response spectrum, A three-dimensional Finite Element Model (FEM) of an asymmetric bridge: the Beni Haroun cable-stayed bridge (CSB) (North Eastern Algeria) is developed in order to include the effects of the main components of SVGM on response parameters in terms of variations of absolute maximum vertical displacements and flexural moments along the deck and on height of short and tall pylons of study CSB, in particular, nonlinear bridge response quantities are examined in terms of rotational ductility demands at the ends of the short and tall piers of the bridge under all components of SVGM. The numerical results are comforted with those obtained assuming uniform seismic excitations. The analysis results reveal, among others, that the bridge responses are very sensitive to the SVGM, with site-response effects being more critical for bridge response than those of incoherence components and wave propagation. As a general trend, it is showed that the assumption of uniform excitation results in much lower ductility demands on bridges than incoherence and site SVGM components and that the latter should be considered for the seismic response assessments and progressive seismic failure studies of irregular cable-stayed bridges.]]></description>
      <pubDate>Mon, 13 Jan 2025 10:34:56 GMT</pubDate>
      <guid>https://trid.trb.org/View/2475184</guid>
    </item>
    <item>
      <title>Reliability-based maintenance optimization of long-distance oil and gas transmission pipeline networks</title>
      <link>https://trid.trb.org/View/2385103</link>
      <description><![CDATA[This paper presents a maintenance model for optimal planning of pipeline network inspections subjected to corrosion and residual stress. The proposed model includes predictive degradation modeling, spatio-temporal reliability, and expected cost minimization. The pipeline networks are formed by linear segments and irregular zones such as elbows, weld joints, and flanges for putting pipes together and changing the direction of gas or liquid flow. The mean of Karhunen-Loève expansion is used to model space-variant corrosion, residual stress, and stochastic dependency in different exposure zones. Monte Carlo simulations are employed to compute the failure probability of individual components. Subsequently, a Bayesian network evaluates the failure probability of the complex pipeline network and identifies the most critical components. Depending on the objective or market demand uncertainties, a cost model is also proposed to optimize the inspection policy. The methodology is applied to a case study, and the results show that it can provide valuable insights to decision-makers to enhance complex systems' safety and reliability.]]></description>
      <pubDate>Thu, 27 Jun 2024 14:04:19 GMT</pubDate>
      <guid>https://trid.trb.org/View/2385103</guid>
    </item>
  </channel>
</rss>