Trucks - Science topic

Less-than-truckload (LTL) logistics presents an interesting and often overlooked practice area of hub location–allocation problems, with its variable discount rates playing a game-changing role. Vulnerability of the roads is another critical factor that has often been neglected when designing hub networks. In this paper, a novel integrated model is...

This paper presents a novel and practical methodology for freight tonnage estimation by leveraging two complementary datasets: Telemetric Traffic Monitoring Sites (TTMS) data and Weigh-In-Motion (WIM) systems. To estimate freight tonnage statewide and potentially nationwide with limited truck weigh-in-motion stations, we have proposed a multi-objec...

We use a combination of primary and secondary data to investigate and quantify the impacts of the COVID-19 pandemic on the California specialty crop sector. We demonstrate that the specialty crop sector was highly resilient during the pandemic and aftermath in terms of output. For many crops, production fell somewhat between 2019 and 2021, but not...

This paper examines geothermal energy applications and development in East Africa. With a large geothermal power potential of 30,000MW, about 5% of this potential has been developed in the region. This study uses secondary data to review source documents, empirical literature and archival information, which was triangulated to obtain greater truths...

Under the condition that there was an interlayer discontinuity length M on both sides of the joint, the effect of vehicle loads and temperature changes on the tensile strain(Ɛ) of the asphalt layer on the (semi) rigid layer crack was analyzed. The analysis conditions included different M values, crack resistant interlayer width and interlayer conti...

Report No 9 presents trends in Russia's import of trucks from China and Europe, focusing on the relative imports of various European brands.

As a rule, the design process of any vehicle is divided into phases of conceptualization, development and industrialization. The most important is the conceptualization phase, on the good elaboration of which the final appearance and quality of the final product will depend. In terms of design, the fundamental engineering issue is the correct choic...

PT XYZ is a company engaged in the manufacturing industry which produces tires. The problem faced by the company is related to the production process which still produces defective products that exceed the target of the key performance indicators (KPI) set by the company. This research analyzes and applies DMAIC ( Define , Measure Analyze , Improve...

At present, the delivery of oil products to agricultural enterprises and farms of the region is carried out by tank trucks from the distribution tank farm Uzneftegaz AK. At the same time, tank trucks may belong to farms or they may be organized into separate specialized auto detachments and belong to specialized enterprises (centralized delivery)....

In order to reduce CO₂ emissions from industrial processes, countries have commenced the vigorous development of CCUS (carbon capture, utilization and storage) technology. The high geographical overlap between China’s extensive coal mining regions and CO2-emitting industrial parks provides an opportunity for the more efficient reduction in CO2 emis...

We propose a multi-sensor fusion localization framework for autonomous heavy-duty trucks suitable for mining scenarios, which enables high-precision, real-time trajectory generation, and map construction. The motion estimated through pre-integration of the inertial measurement unit (IMU) can eliminate distortions in the point cloud and provide an i...

The main factors that have the greatest impact on the change in the efficiency of timber road trains are determined. A promising design of a recuperative cone device with a ball support for the timber platform of a tractor is proposed. A mathematical model has been developed that describes the operation of a cone device with a ball support when mov...

In electric modern energy efficient trucks and buses, transmissions with an electric motor and inverter located directly in the drive axle are increasingly used to increase the useful volume of the passenger compartment or cargo space and improve performance. This highly integrated electromechanical unit is called a mechatronic transmission. The pr...

The paper shows the possibility of creating and programming the basic modules of a software framework based on the modular principle of operation, which should represent an architectural system for organising the automated control of a dump truck. The design process of the localisation module in the context of unmanned vehicles, focusing on the Aut...

The article presents a research of the lubricity of the elements of the mechatronic transmission of an energy efficient truck. Particular attention is paid to the processes associated with ensuring reliable operation of the transmission and reducing friction between the components. Analysis of the distribution of fluids, performed using the SPH met...

Penelitian ini bertujuan untuk analisis efektivitas alat berat pada kegiatan bongkar muat di lapangan penumpukan sementara PT. Multi Terminal Indonesia agar dapat mengukur performansi alat berat tersebut dan dapat menentukan tindakan apa yang perlu dilakukan dalam menjaga alat dapat beroperasi dengan baik Penelitian ini menggunakan metode kualitati...

The logistics and transportation sectors are struggling to manage empty containers (ECs), resulting in unused resources, inefficiencies, and increased CO2 emissions. The Physical Internet (PI) concept provides an opportunity to improve container sharing and transportation by intelligently organising logistics resources. This paper shows how PI prin...

Background A recent systematic review shows high COVID-19 vaccine effectiveness in fully-vaccinated people in Africa. However, vaccine uptake has varied across populations. We assessed the uptake, perceptions of and willingness to take the COVID-19 vaccine among unvaccinated individuals at two Ugandan border points of entry. Methods This was a cro...

Through the application of Critical Discourse Analysis (CDA) and visual image analysis, this study evaluated 15 English Language Teaching (ELT) textbooks utilized in Vietnam, seeking to explore the extent to which environmental literacy (EL) content is incorporated. The analysis indicates that the knowledge component appears 29 times, Affect 25 tim...

Taking into account the requirements to reduce the release of harmful emissions into the environment, the EU’s environmental standards when transitioning to the Euro 7 standard in 2025 will actually lead vehicles having to operate without producing emissions in all driving situations. Carmakers believe that the new, much stricter regulations will m...

Traffic crashes contribute significantly to non-recurrent congestion, thereby increasing delays, congestion pollution, and other challenges. It is important to have tools that enable accurate prediction of incident duration to reduce delays. It is also necessary to understand factors that affect the duration of traffic crashes. This study developed...

China’s air pollution mitigation policy promotes the shift of bulk cargo transportation from roadways to railways and waterways, which might also influence carbon emissions. In this study, we developed a novel emissions assessment framework encompassing three truck types, rail, and waterways at the provincial level. Using counterfactual scenarios d...

The frequent occurrence of secondary traffic accidents, characterized by vehicles losing control and straying into opposing lanes on highways, has emerged as a pressing concern. To address this issue, attention has been focused on the pivotal role of median guardrails as safety barriers. While conventional guardrails have effectively hindered vehic...

6 Groundwater resources are easy to access in the Gaza Strip but are 7 out of balance with groundwater abstraction. Consequently, the pi-8 ezometric level has dropped, and seawater intrusion has led to an 9 increase in groundwater salinity. 10 To meet household demand for freshwater, dozens of small private 11 companies have entered the desalinatio...

This study scrutinizes the important factors behind the success of video games,Targeting a comprehensive paradigm which merges game quality, brand influence, and market strategies. By investigating the top 100 best-selling titles on Steam, the research looks into the interconnections between creative gameplay, the depth of storytelling, audiovisual...

The rapid urban development in Uttara, Dhaka, has significantly strained its road infrastructure, with 15% of the paved roads suffering from various failures. This study investigates the types of flexible pavement failures in the Uttara region and explores the underlying causes. Factors such as low-quality materials, heavy truck loads, intense rain...

Freight truck-related crashes pose significant challenges, leading to substantial economic losses, injuries, and fatalities, with pronounced spatial disparities across different regions. This study adopts a transport geography perspective to examine spatial justice concerns by employing deep counterfactual inference models to analyze how socioecono...

Working stream: 4 Enabling and tracking impact through data and digital solutions. Use-case: Versatile and scalable tool supporting decision making through extensive data collection. Participants: Beeah, UBQ and EHFAAZ 1. Project concept name: Recycling Business Intelligence (BI) 2. Description: The United Nations announced the Sustainable Developm...

Internal combustion (IC) engines are used widely as the primary power source for automobiles of all types, cars, motorcycles, and trucks. Because of the high combustion temperatures involved in the operation, the excess heat is removed by means of extended fins that increase the surface area for adequate cooling. Significant improvement in the heat...

Preparation of public participation as part of the update of the national clean air program This final report documents the results of the scientific impact assessment, its generally understandable simplification and its target group-specific communication for the following air pollution control measures: ► Mandatory specifications for spreading m...

The maritime industry is under increasing pressure to reduce CO2 emissions, with the International Maritime Organization (IMO) setting a target to reduce greenhouse gas emissions, including emissions from the port sector, by 40% by 2030. However, accurate and reliable methods for estimating CO2 emissions at container ports, which are significant co...

Fire pose more severe threat to steel truss bridge girders as compared to common steel plate and box bridge girders. To deeply clarify failure mechanism of fire exposed steel truss bridge girders, this paper presents an investigation on fire performance of composite steel truss bridge girders simultaneously subjected to structural loadings and hydr...

Background: Shoulder girdle muscle tightness tends to the increased tension and stiffness in the muscles surrounding the glenohumaral joint, including the scapula, neck and clavicle.Tight shoulders can also be lead by prolonged sitting , incorrect sleeping positions. Poor posture and improper alignment of body can also lead shoulder girdle muscles...

We study the effect of using high-resolution elevation data on the selection of the most fuel-efficient (greenest) path for different trucks in various urban environments. We adapt a variant of the Comprehensive Modal Emission Model (CMEM) to show that the optimal speed and the greenest path are slope dependent (dynamic). When there are no elevatio...

Background Rear-end crashes on toll roads have been a significant issue in Indonesia. This type of crash exists and needs a mitigation strategy. However, limited research exists examining the mechanism and contributing factors of these crashes in Indonesia. This research aimed to describe how rear-end crashes have occurred on toll roads in Indonesi...

This paper presents the results of the study of the kinematics and dynamics of an elastic steered wheel depending on its state, the kingpin unit design parameters, and the tire characteristics in order to obtain dependencies for calculating the tire steering resistance torque in static state and during movement. It was established that when steerin...

Pelanggaran terhadap jam operasional truk menjadi salah satu penyebab utama gangguan kelancaran arus perjalanan, terutama di kawasan perkotaan dan jalan utama yang memiliki tingkat mobilitas tinggi. Penelitian ini bertujuan untuk menganalisis dampak pelanggaran tersebut terhadap kelancaran lalu lintas melalui pendekatan tinjauan literatur. Metode y...

In the last two decades, NYC has has undergone a technological shift in surveillance cameras, which produced a cultural change that is deeply rooted in historical oppression. From its inception in the 18th century, the lantern law became an institution for surveillance by targeting black and brown bodies to illuminate themselves at night. For the e...

Recovery strategies for end-of-life (EoL) and end-of-use (EoU) products, such as reuse, remanufacturing, and recycling, present opportunities to enhance profitability and lower emissions while fostering new business prospects. However, significant uncertainties and stochasticity affect the quantity and quality of returned waste tires, costs associa...

Numerical investigations were performed to compare and analyze the effect of the tunnel aspect ratio on the temperature distribution caused by weak and strong plumes. Four tunnel aspect ratios were chosen, which were one, two, four, and eight, respectively. The heat release rates were manipulated within the range of 3 MW to 50 MW in order to replic...

"Rozbieżne emancypacje Przewodnik po prozie 1976-2020" Przemysław Czapliński Trochę podręcznik, trochę przewodnik, multisynteza, quasi-monografia i historycznoliteracki monster truck w jednym. Czas akcji: 1976-2020 Przestrzeń: kultura polska Bohater: literackie gatunki narracyjne Przemysław Czapliński, jeden z najwybitniejszych współczesnych h...

The article addresses the shortcomings in reliability analysis and modeling between various subsystems in a certain type of truck. By organizing and analyzing the failure data of each subsystem, the reliability modeling of the entire vehicle and its subsystems is established based on the Weibull distribution. After that, using hypothesis tests: lin...

Globally, thousands of truck occupants die annually from motor vehicle incidents. During medico-legal investigations of such incidents, forensic practitioners are required to undertake thorough examinations of the injuries present. Despite this, very few studies assessing skeletal fractures in particular, in deceased truck occupants are currently a...

This research work, which is part of a traffic monitoring project, introduces a computer vision framework for multiple vehicle detection and information extraction, which is based on some novel machine/deep learning and mathematical models. The proposed technique detects the vehicles in the traffic video sequences and also extracts their main infor...

With the growth in road transport volume and increasingly stringent environmental regulations, the use of lightweight dump trucks not only reduces fuel consumption but also enhances transport efficiency, aligning with the principles of green development. It has now become a key focus in the field of heavy-duty vehicle research. The carriage is loca...

The purpose of this study is to explore nonlinear and threshold effects of traffic statuses and road geometries, as well as their interactions, on traffic accident severity. In contrast to earlier research that primarily defined road alignment qualitatively as straight or curved, flat or slope, this study focused on the design elements of road geom...

This article addresses the development of General Motors’ assembly plant in the port of Tanjung Priok in Batavia/Jakarta, Indonesia. The American multinational operated the plant—its first production line in Southeast Asia—between 1927 and 1955. General Motors gave impetus to Tanjung Priok’s economic importance, and it became a key element in the p...

Amazon rainforests have many hidden treasures; thus, a balance between mine activities and the environment must be maintained. In the northern region of Brazil, there is a large diversity of metal ore deposits, the exploitation of which requires innovative and sustainable mining operations. Historically, mining operations have caused various enviro...

The tire life depends on many factors, such as the correct loading of the dump truck, longitudinal and transverse slopes of the road, turning radius, internal tire pressure, uniform distribution of the loaded ore, average operating speed of the dump truck, road surface, its condition and type, driver skill, ambient temperature, etc. It has been stu...

Road freight is a main mode of transportation in the logistics system, and its operation substantially depends on the heavy goods vehicle (HGV) trucks. One of the places, where trucks drivers spend hours in the long-haul route, is the parking lot. As a result, the safety matter in truck parking lots is important to the efficient performance of truc...

Ordered PtCo intermetallic (OIM) catalyst (L10-PtCo/C) is a promising candidate as the oxygen reduction reaction (ORR) catalyst in hybrid fuel cell systems (FCS) for class-8 heavy duty (HD) trucks. Compared to a baseline annealed Pt on high surface area carbon (a-Pt/HSC) catalyst, its mass activity (MA) is 71% higher initially and 144% higher after...

The European automotive sector is under pressure to transform into a zero net emission industry. This involves lightweight, highly efficient vehicles, but also zero emission structural materials. At the same time, a steel industry with automotion as its main customer faces a similar conundrum; it is only natural that this synergy is explored. One o...

This study describes the features, manifestations and interrelationships of job stress, working capacity, professional performance and safety in loggers with a shift work organization in the North. This study involved 402 loggers. The research methods include questionnaires and psychophysiological diagnostics of stress and working capacity as well...

To investigate the energy-saving advantages of truck platoons, this study focused on two, three, and six-axle trucks as research subjects. A non-uniform platoon model of trucks was constructed based on braking performance differences. The aerodynamic characteristics of the non-uniform platoon fleet were analyzed in depth using numerical simulation...

The paper presents the determination of the load factor of a mining dump truck, taking into account the characteristics of the rock and the load. The parameters of mining equipment and loading schemes of loam and clay on the loading platform of a 240-tonne capacity dumper are analyzed. Models of mining equipment and simulation model of the process...

The article assesses the capabilities of regenerative braking in terms of braking efficiency when studying the motion of a model of an energy-efficient electric vehicle with a mechatronic transmission using motion cycles recorded on real vehicles. Based on statistical data, a study of driving conditions was conducted, the required braking power and...

The rising frequency of heavy truck accidents in China poses a significant public safety risk, endangering lives and property. However, current research based on data from heavy truck accidents in China remains limited, making it challenging to support the formulation of traffic management measures. To mitigate the severity of these accidents, this...

A wave of competition damage claims started in 2018, following the European Commission’s decision in the truck cartel case, as follow-on actions. Due to the territorial jurisdiction rules of the Hungarian Civil Procedure Act, these were brought before different courts, several of which have already reached the Hungarian Supreme Court. In the truck...

Wood supply chains are massively threatened by climate change impacts, leading to more frequent and severe forest calamities. Improving the resilience of wood supply chains requires enhanced knowledge about the structure, critical indicators, and challenges of the transport system. Consequently, a comprehensive empirical study of wood transport was...

This study investigated the prevalence of childhood asthma and respiratory symptoms with their associated air pollution sources among adolescents aged 13–14 years residing in a Malaria-endemic region. Methods: A cross-sectional survey was conducted with 2855 adolescents from fourteen (14) selected schools in communities exposed to high levels of ai...

Yerba mate (YM) is an important crop derived from the cultivation of the native tree Ilex paraguariensis in northeastern Argentina, used for the preparation of mate infusion, which is widely consumed in South America. This study aimed at assessing the environmental impact, namely of CO2 equivalent (CO2eq.) emissions, of the YM value chain while ide...

The article examines the heating of a truck’s energy efficient mechatronic transmission during operation of an electric motor in maximum power mode. Particular attention is paid to the process of modeling conjugate heat transfer and its impact on the energy efficiency of mechatronic transmission. To solve this problem, computational fluid dynamics...

The article provides an overview and analysis of modern energy efficient trucks with traction electric drive wheels. A description is presented indicating the main technical characteristics of the model range of energy efficient trucks with electric drive wheels, such companies as DAF Trucks, Mercedes-Benz, Daimler Trucks North America, Kenworth, M...

This paper reports on a study to identify the actual costs of water supply in two contexts with long-term refugee populations: Itang in the Gambella region of Ethiopia and Rwamwanja in the Kamwenge District of Uganda. Following the initial rapid, overwhelming demand for services at these locations, the water services have evolved through different...

Accidents involving cyclists and trucks are among the most severe road accidents. In 2021, 199 cyclists were killed in accidents involving a truck in the EU. The main accident situation is a truck turning right and a cyclist going straight ahead. A large proportion of these accidents are caused by the inadequate visibility in an HGV (Heavy Goods Ve...

ABSTRACT As a result of depending of open pits, dumping distances increase. Dumping distance defines the hauling cost. Hauling cost is factor on determination of the maximum working depth of the pit. To lower hauling cost, mobil crusher-conveyor systems have been used instead of conventional systems, excavator-truck haulage, recently. By this way,...

Within the scope of this work, the effect of the position of the stiffening ribs used in the arm transition regions of a heavy-duty truck rear axle housing prototype on fatigue failure tendency was examined. In the vertical fatigue tests applied to the housing prototype, it was observed that the component withstood the targeted number of load cycle...

The purpose of the research is to identify entrepreneurial risks and ways to implement risk management in the enterprise in the field of services. The object of the study is the entity "Autogrup Expres" SRL, which is an international freight transport company with the trucks of small weight capacity. Prin risc se subînțelege probabilitatea de apa...

Introduction: Transportation companies have increasingly shifted their workforce from permanent to outsourced roles, a trend that has consequences for self-employed truck drivers. This transition leads to extended working hours, resulting in fatigue and an increased risk of crashes. The present study investigates the factors contributing to fatigue...

The United Nations International Labour Organization (ILO) has recently incorporated driver pay into its guidelines on the promotion of safe and decent work in road transport. ILO guideline 73 states that ‘the remuneration of … CMV [commercial motor vehicle] drivers should be sustainable and take into consideration the attractiveness and sustainabi...