Spray reducing devices for heavy goods vehicles

The article represents the next part of the periodical publications of the Department of Economic Research in the field of cost analysis of the Polish international freight transport companies. It summarises and makes comparative assessments of the average unit costs of these companies for the 2019 in relation to the results of the previous period. The survey involved carriers operating on the Eastern markets. The article presents the statistical characteristics of the entities surveyed, taking into account their size, determined based on the number of the fleet’s heavy goods vehicles operated. It also shows how, the average costs of one vehicle-kilometre (veh-km) of mileage for a truck above 12.0 Mg GVW, are shaped, according to the size of the companies and taking into account the destinations of transport. The generic costs structure of the companies examined, has also been analysed. Presented in the tabular and graphic form is the evolution of unit costs for both 2019 and the whole 2009-2019 period.

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Camera-based measurement of cyclist motion

Proceedings of the Institution of Mechanical Engineers Part D Journal of Automobile Engineering ◽

10.1177/0954407018789301 ◽

2018 ◽

Vol 233 (7) ◽

pp. 1793-1805 ◽

Cited By ~ 1

Author(s):

Chris Eddy ◽

Christopher de Saxe ◽

David Cebon

Keyword(s):

Contact Point ◽

Ground Plane ◽

Blind Spot ◽

Geometric Constraints ◽

Average Error ◽

Camera System ◽

Position Data ◽

Close Range ◽

Heavy Goods Vehicles ◽

Full Scale Tests

Heavy goods vehicles are overrepresented in cyclist fatality statistics in the United Kingdom relative to their proportion of total traffic volume. In particular, the statistics highlight a problem for vehicles turning left across the path of a cyclist on their inside. In this article, we present a camera-based system to detect and track cyclists in the blind spot. The system uses boosted classifiers and geometric constraints to detect cyclist wheels, and Canny edge detection to locate the ground contact point. The locations of these points are mapped into physical coordinates using a calibration system based on the ground plane. A Kalman Filter is used to track and predict the future motion of the cyclist. Full-scale tests were conducted using a construction vehicle fitted with two cameras, and the results compared with measurements from an ultrasonic-sensor system. Errors were comparable to the ultrasonic system, with average error standard deviation of 4.3 cm when the cyclist was 1.5 m from the heavy goods vehicles, and 7.1 cm at a distance of 1 m. When results were compared to manually extracted cyclist position data, errors were less than 4 cm at separations of 1.5 and 1 m. Compared to the ultrasonic system, the camera system requires simple hardware and can easily differentiate cyclists from stationary or moving background objects such as parked cars or roadside furniture. However, the cameras suffer from reduced robustness and accuracy at close range and cannot operate in low-light conditions.

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Comparative analysis of reliability and maintenance costs of heavy goods vehicles of selected brands used under long-term rental

2018 XI International Science-Technical Conference Automotive Safety ◽

10.1109/autosafe.2018.8373348 ◽

2018 ◽

Cited By ~ 1

Author(s):

Marcin Slezak ◽

Andrzej Niewczas ◽

Piotr Ignaciuk ◽

Artur Dmowski

Keyword(s):

Comparative Analysis ◽

Maintenance Costs ◽

Heavy Goods Vehicles

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A New Approach of Smart Mobility for Heavy Goods Vehicles in Casablanca

Intelligent Environments 2021 - Ambient Intelligence and Smart Environments ◽

10.3233/aise210086 ◽

2021 ◽

Author(s):

Mohammed Mouhcine Maaroufi ◽

Laila Stour ◽

Ali Agoumi

Keyword(s):

Environmental Sustainability ◽

Traffic Congestion ◽

Traffic Management ◽

Road Traffic ◽

Smart Cities ◽

Research Work ◽

Transport Infrastructure ◽

Transport Systems ◽

Smart Mobility ◽

Heavy Goods Vehicles

Managing mobility, both of people and goods, in cities is a thorny issue. The travel needs of urban populations are increasing and put pressure on transport infrastructure. The Moroccan cities are no exception and will struggle, in the short term, to respond to the challenges of the acceleration of the phenomenon of urbanization and the increase in demand for mobility. This will inevitably prevent them from turning into smart cities. The term smart certainly alludes to better use of technologies, but smart mobility is also defined as “a set of coordinated actions intended to improve the efficiency, effectiveness and environmental sustainability of cities” [1]. The term mobility highlights the preponderance of humans over infrastructure and vehicles. Faced with traffic congestion, the solutions currently adopted which consist of fitting out and widening the infrastructures, only encourage more trips and report the problem with more critical consequences. It is true that beyond a certain density of traffic, even Intelligent Transport Systems (ITS) are not useful. The concept of dynamic lane management or Advanced Traffic Management (ATM) opens up new perspectives. Its objective is to manage and optimize road traffic in a variable manner, in space and in time. This article is a summary of the development of a road infrastructure dedicated to Heavy Goods Vehicles (HGV), the first of its kind in Morocco. It aims to avoid the discomfort caused by trucks in the urban road network of the city of Casablanca. This research work is an opportunity to reflect on the introduction of ITS and ATM to ensure optimal use of existing infrastructure before embarking on heavy and irreversible infrastructure projects.

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E-Enforcement in Digital Government

Electronic Government ◽

10.4018/978-1-59904-947-2.ch100 ◽

2011 ◽

pp. 1354-1363

Author(s):

Hans de Bruijn ◽

Marieke Koopmans-van Berlo

Keyword(s):

European Union ◽

The Netherlands ◽

Private Sector ◽

Significant Rise ◽

The European Union ◽

Digital Government ◽

Special Position ◽

The Road ◽

Weigh In Motion ◽

Heavy Goods Vehicles

In recent years, there has been a significant rise in “e-enforcement.” E-enforcement is the use of electronic tools in law enforcement. In this article, we consider two new forms of e-enforcement which have recently been introduced in Europe. These are Weigh in Motion with Video (WIM-Vid) and the digital tachograph. WIM-Vid is a system involving sensors in the road and cameras in order to register overloading of heavy goods vehicles. WIM-Vid was developed and implemented in the Netherlands and is currently attracting international attention. The digital tachograph replaces the analogue tachograph in all heavy goods vehicles within the European Union. The machine registers drivers’ driving and rest times. In this article, we focus on the special position of the clients of e-enforcement, the regulatees. Although e-enforcement is a form of e-government or digital government, the position of the client is quite distinct. Many definitions describe e-government in terms of service delivery (Chen, 2002; Devadoss, Pan, & Huang, 2002; Finger & Pécaud, 2003; Hiller & Belanger, 2001; Ho, 2002; Moon, 2002). These descriptions feature the concept of customer focus (Devadoss et al., 2002; Finger & Pécaud, 2003; Ho, 2002). The purpose of e-government should be to satisfy these customers, whether they are ordinary citizens or parties in private sector (Finger & Pécaud, 2003). The clients of enforcement, however, are offenders or potential offenders. These clients are characterized by the fact that they do not want the service and generally exhibit uncooperative behaviour (Alford, 2002). They may, for example, actively evade the “service” of enforcement, or commit information fraud (Hawkins, 1984). In this article we will see what the distinct position of the clients of enforcement means for the effects of e-enforcement.

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Heavy Goods Vehicles (HGVs)

Bridge Management ◽

10.1016/b978-0-7506-8511-5.10014-7 ◽

2010 ◽

pp. 543-552

Author(s):

M.J. Ryall

Keyword(s):

Heavy Goods Vehicles

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Path-Following Steering Control for Articulated Vehicles

Journal of Dynamic Systems Measurement and Control ◽

10.1115/1.4023396 ◽

2013 ◽

Vol 135 (3) ◽

Cited By ~ 28

Author(s):

B. A. Jujnovich ◽

D. Cebon

Keyword(s):

High Speed ◽

Path Following ◽

Steering Control ◽

Active Steering ◽

High Speeds ◽

Wide Range ◽

Articulated Vehicles ◽

Speed Range ◽

Heavy Goods Vehicles ◽

Low Speeds

Passive steering systems have been used for some years to control the steering of trailer axles on articulated vehicles. These normally use a “command steer” control strategy, which is designed to work well in steady-state circles at low speeds, but which generates inappropriate steer angles during transient low-speed maneuvers and at high speeds. In this paper, “active” steering control strategies are developed for articulated heavy goods vehicles. These aim to achieve accurate path following for tractor and trailer, for all paths and all normal vehicle speeds, in the presence of external disturbances. Controllers are designed to implement the path-following strategies at low and high speeds, whilst taking into account the complexities and practicalities of articulated vehicles. At low speeds, the articulation and steer angles on articulated heavy goods vehicles are large and small-angle approximations are not appropriate. Hence, nonlinear controllers based on kinematics are required. But at high-speeds, the dynamic stability of control system is compromised if the kinematics-based controllers remain active. This is because a key state of the system, the side-slip characteristics of the trailer, exhibits a sign-change with increasing speeds. The low and high speed controllers are blended together using a speed-dependent gain, in the intermediate speed range. Simulations are conducted to compare the performance of the new steering controllers with conventional vehicles (with unsteered drive and trailer axles) and with vehicles with command steer controllers on their trailer axles. The simulations show that active steering has the potential to improve significantly the directional performance of articulated vehicles for a wide range of conditions, throughout the speed range.

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