scholarly journals Combination and Selection of Traffic Safety Expert Judgments for the Prevention of Driving Risks

Sensors ◽  
2012 ◽  
Vol 12 (11) ◽  
pp. 14711-14729 ◽  
Author(s):  
Enrique Cabello ◽  
Cristina Conde ◽  
Isaac Diego ◽  
Javier Moguerza ◽  
Andrés Redchuk
Keyword(s):  
Traffic Safety ◽  
Selection Of

An Ultra-Wideband System for Vehicle Positioning

2010 ◽  
Vol 56 (3) ◽  
pp. 247-256 ◽  
Author(s):  
Jerzy Kolakowski ◽  
Jacek Cichocki ◽  
Piotr Makal ◽  
Ryszard Michnowski
Keyword(s):  
Traffic Safety ◽  
Ultra Wideband ◽  
System Configuration ◽  
Vehicle Localization ◽  
Precise Information ◽  
Localization System ◽  
System Concept ◽  
Vehicle Position ◽  
Vehicle Positioning ◽  
Selection Of

An Ultra-Wideband System for Vehicle PositioningSystems supporting traffic safety require precise information on a vehicle position. The paper contains a proposal for a vehicle localization system based on ultra-wideband (UWB) technology. The system allows for vehicle positioning with submeter accuracy. The paper presents a system concept and an algorithm used for position calculation. The algorithm consists in selection of a system configuration in order to decrease the positioning uncertainty. The system concept was verified with a developed system demonstrator. The paper contains a description of the devices comprising the system. Exemplary results of outdoor demonstrator tests are included and discussed. The tests confirmed efficiency and attractiveness of the proposed solution.

scholarly journals LANDSCAPE DESIGN ON THE SIDES OF THE BAGHDAD-BABEL ROAD "AN APPLIED MODEL FOR A REST AREA

2019 ◽  
Vol 50 (4) ◽  
Author(s):  
Hussain & Jasim
Keyword(s):  
Traffic Safety ◽  
Traffic Accident ◽  
Traffic Density ◽  
The Road ◽  
Applied Model ◽  
Local Species ◽  
The Right ◽  
Design Proposal ◽  
Main Entrance ◽  
Selection Of

 The study was aimed to design the  landscape on the sides of Baghdad-Babel road and landscaping the aspects of this section of the road length of 1 km, which represents the main entrance of the province of Babel, which is the municipality of Alexandria to achieve the strategy of beautiful roads through the appropriate selection of types of vegetation and emphasis on local species and adapted to environment and soil, which is one of the main factors in the conservation of vegetation on the sides of the roads, as well as the preparation of a design proposal for a rest area on the right side of the section of the road under study to an area of ​​270,14.108 m2 is not intended for any future use, its currently used by drivers of heavy and medium vehicles and the regular vehicles and passengers while waiting at the entrance to the province of Babylon and provide an opportunity to reduce stress and fatigue on the driver and management of travel requirements and improve traffic safety by reducing traffic accident rates as a result of traffic density in this way.

scholarly journals An Analysis of Traffic Conflicts as a Tool for Sustainable Road Transport

2020 ◽  
Vol 12 (17) ◽  
pp. 7198
Author(s):  
Vladislav Krivda ◽  
Jan Petru ◽  
David Macha ◽  
Kristyna Plocova ◽  
David Fibich
Keyword(s):  
Traffic Safety ◽  
Road Transport ◽  
European Countries ◽  
Road User ◽  
Correct Identification ◽  
Sustainable Transport ◽  
Main Hypothesis ◽  
The Road ◽  
Traffic Conflicts ◽  
Selection Of

This paper presents an approach to partially solving an issue within the scope of sustainable road transport, specifically the issue of potential accidents, i.e., traffic conflicts. First, a method is introduced for the analysis of traffic conflicts using video equipment. The attention is focused on traffic conflicts that occur at turbo-roundabouts. Given the diversity of causes of traffic conflicts, the emphasis is placed on the correct identification of the cause, i.e., whether the conflict is caused only by the negligence of the road user, or whether the conflict is more or less influenced by an inappropriately designed turbo-roundabout or one or more of its specific building elements (e.g., unsuitable corner radius). The next part of the article presents a selection of results that were obtained from analyses performed at about 100 turbo-roundabouts in nine European countries. Illustrative diagrams show the courses of the emergence of traffic conflicts, the causes of which are then described in detail. The conclusions from these analyses confirm the main hypothesis that the evaluation of traffic conflicts should be an essential part of designing roads, in order to increase traffic safety and, importantly, contribute to sustainable transport.

scholarly journals Criteria for Selection and Evaluation of Rolling Stock of Motor Transport Enterprises

2021 ◽  
pp. 17-28
Author(s):  
V. O Khavruk ◽  
O. O Parkhomenko
Keyword(s):  
Economic Evaluation ◽  
Traffic Safety ◽  
Practical Experience ◽  
Operating Conditions ◽  
Rolling Stock ◽  
Maximum Speed ◽  
Suitability Analysis ◽  
Motor Transport ◽  
Criteria For Selection ◽  
Selection Of

Purpose. The basic aim of the work is to analyze and substantiate the criteria for selection and evaluation of rolling stock – trucks of motor transport enterprises, based on scientific research on this issue. Methodology. The research was performed using general methods: abstraction and concretization, analysis, synthesis, induction, deduction. Findings. It is established that the main features of the classification of criteria for selection and evaluation of rolling stock are the number of factors (there are single and complex criteria); level of dependence (it is possible to single out completely dependent on external operating conditions, partially dependent and independent criteria); nature (quantitative and qualitative criteria); quantitative value (absolute and relative criteria). The practical approach at a choice of rolling stock fleet for the motor transport enterprise, proceeding from such factors, as character and structure of cargo flow; volumetric weight and batch of cargo; road conditions; ensuring maximum speed and traffic safety; ensuring the minimum costs associated with goods transportation. The scheme of criteria for the selection of rolling stock is presented and five stages are clarified, which establish the sequence of evaluation and selection of vehicles: 1) analysis of transportation conditions and cargo characteristics; 2) the choice of car capacity; 3) structure suitability analysis to the road conditions; 4) analysis of technical and operational properties of cars; 5) technical and economic evaluation of cars selected in the first four stages, which can be performed according to different criteria. The expediency of bringing different criteria into one complex quality indicator is performed in a graphical interpretation. It was found that the technical and economic evaluation of cars is based on the following criteria: car performance; the complexity of using the car; energy consumption of transportation; metal consumption of transportations. Originality. The analysis of the criteria for selection and evaluation of rolling stock allowed to form a method of selection and evaluation of vehicles and the criteria used in the form of a structured scheme that takes into account the main goal – to maximize profits from transport work and minimize operating costs. Practical value. The results of the study can be used by motor transport enterprises in the selection of rolling stock at the stages of purchase of new trucks, based on the practical experience of transportation of various types of goods.

Stabilization of Embankment Slope with Geofoam

2000 ◽  
Vol 1736 (1) ◽  
pp. 94-102 ◽  
Author(s):  
Walter S. Jutkofsky ◽  
J. Teh Sung ◽  
Dawit Negussey
Keyword(s):  
Traffic Safety ◽  
Case History ◽  
Expanded Polystyrene ◽  
Engineering Properties ◽  
Clayey Soils ◽  
Treated Area ◽  
Embankment Slope ◽  
Pavement Temperature ◽  
Selection Of ◽  
Area Data

A case history is presented describing the use of expanded polystyrene (EPS) geofoam blocks to treat an unstable roadway embankment slope involving clayey soils. The selection of the geofoam treatment was based upon its ability to be constructed and have the least impact on both the environment and adjacent homeowners. The site subsurface conditions, engineering properties of EPS, design analysis, and construction phases are reviewed. Potential traffic safety problems associated with differential icing of roadways caused by the presence of geofoam blocks beneath the pavements were minimized by using a thicker subbase layer in the geofoam-treated area. Data from an instrumentation program consisting of an inclinometer, extensometers, and thermistors are presented. Pavement temperature readings collected from areas with and without geofoam treatment are compared to investigate potential differential icing on the roadway.

scholarly journals Impact of Average Speed Enforcement Systems on Traffic Safety: Evidence from the Roads of Lithuania

2020 ◽  
Vol 15 (3) ◽  
pp. 1-18
Author(s):  
Laura Gavėnienė ◽  
Laura Jateikienė ◽  
Donatas Čygas ◽  
Aistė Kasperavičienė
Keyword(s):  
Traffic Safety ◽  
Road Network ◽  
Good Practices ◽  
Average Speed ◽  
The Road ◽  
Foreign Countries ◽  
First Results ◽  
Speed Enforcement ◽  
Positive Effect ◽  
Selection Of

Average speed enforcement systems have been used on the roads of foreign countries for many years already, and give a positive effect on reducing accident number. The article presents good practices in the use of average speed enforcement systems in various countries and their impact on improving traffic safety. The article analyses the experience of system installation on the roads of Lithuania and the first results. The article also proposes methodologies for the selection of road sections to be enforced, the equipment used, and distribution of road sections in the road network of Lithuania. A detail analysis is given of the effect of average speed enforcement systems after their installation in three different periods on 25 road sections. The analysed data is differentiated between main and national roads. Conclusions and recommendations are given at the end of the paper for a future development of average speed enforcement systems.

Reliability and functional safety as the main components of the quality of passenger cars

2018 ◽  
Vol 77 (4) ◽  
pp. 241-249 ◽  
Author(s):  
S. V. Petrov ◽  
G. V. Raykov ◽  
Yu. V. Kornev ◽  
N. B. Karavanova
Keyword(s):  
Traffic Safety ◽  
Technical Condition ◽  
Functional Safety ◽  
Passenger Cars ◽  
State Supervision ◽  
Reducing Costs ◽  
Main Components ◽  
Definition Of ◽  
Selection Of

Quality of passenger cars is a complex property, depending on the reliability and functional safety of the cars. Therefore, guided by the standard definition of the term "quality", satisfaction of the parties concerned, in this case passengers, customer, carrier, infrastructure owner, supplier or state supervision bodies, can be achieved by meeting the requirements objectively established to the noted indicators. In order to establish the requirements for the reliability and functional safety of passenger cars, it is necessary to solve the following tasks: Selection of the nomenclature of indicators taking into account the peculiarities of using passenger cars for their intended purpose. Development of calculation methods and selection of parameters of test plans for reliability for the established nomenclature of indicators. Determination of the achieved level of reliability and safety of cars based on selected indicators. Establishment of standardized values of indicators taking into account achieved level on the basis of the principle of reasonable sufficiency. The article shows the nomenclature of the applied indicators of reliability and safety of passenger cars, as well as formulas for their calculation, accepted criteria for failures and limiting states of cars, requirements for the accuracy and reliability of the measured indicators. The work concludes that the establishment of requirements for indicators of reliability and functional safety of passenger cars allows taking into account the interests of all involved parties. For passengers, infrastructure owner and state supervision bodies, interests in the field of traffic safety will be taken into account; for the carrier - these requirements will be taken into account in terms of timely and safe transportation of passengers; for the customer - in terms of ensuring the good technical condition of the cars; for the manufacturer - in terms of preserving the reputation, ensuring the competitiveness of products, reducing costs to eliminate inconsistencies in its quality.

scholarly journals Analysis of Solutions Improving Safety of Cyclists in the Road Traffic

2021 ◽  
Vol 11 (9) ◽  
pp. 3771
Author(s):  
Przemysław Skoczyński
Keyword(s):  
Traffic Safety ◽  
Safety Management ◽  
Road Traffic ◽  
Effective Management ◽  
The Road ◽  
Effective Implementation ◽  
Road Users ◽  
Car Traffic ◽  
Mode Of Transport ◽  
Selection Of

Cycling safety management is particularly important due to the increasing use of this mode of transport and increasing car traffic flows. Cyclists—travelling on roadways or sharing the space with pedestrians—are exposed to considerable risks for their safety, as well as for the safety of other road users. Comprehensive and effective management of bicycle traffic safety is therefore essential for the protection of this group of road users. The article presents procedures, the implementation of which is aimed at increasing the safety of cyclists and effective implementation of measures to achieve that. The analyses aimed at the selection of appropriate measures and solutions to improve safety of cyclists in the road traffic have been presented. The procedures include: Selection of devices and measures, risk assessment and estimation of the potential to reduce the risk of collisions/accidents involving cyclists, selection of investment measures and devices reducing the risk of cyclists and other road users, implementation methods and monitoring of selected measures reducing the risk of collisions/accidents involving cyclists. The proposals contained in the article fill in the gap existing in this area of knowledge. The analyses conducted and the presented results show that the construction of infrastructure for cyclists is not the only way to improve the safety of this group of road users. Due to the high costs and deficit of the road surface in the road-street cross-section—other forms of measures in this area should also be analyzed.

scholarly journals The selection of the engine unit - main engine generator during the modernization of the 19D/TEM2 locomotive

2020 ◽  
Vol 182 (3) ◽  
pp. 38-46
Author(s):  
Piotr Michalak ◽  
Jerzy Merkisz ◽  
Włodzimierz Stawecki ◽  
Maciej Andrzejewski ◽  
Paweł Daszkiewicz
Keyword(s):  
Traffic Safety ◽  
Combustion Engine ◽  
Rolling Stock ◽  
Railway Traffic ◽  
Start Up ◽  
Base Reference ◽  
Diagnostics System ◽  
Selection Methodology ◽  
Main Engine ◽  
Selection Of

The paper aims to present a generating set selection methodology for a modernized diesel locomotive. An analysis of the number of rolling stock, with particular emphasis on the number of diesel locomotives owned by national carriers was performed. Based on the popularity of the locomotives operated on Polish railways, the TEM2 locomotive was chosen to be the base reference for the modernized 19D locomotive described in the paper. The scope of the locomotive's modernization was described. Modernization included: replacement of the internal combustion engine, replacement of the generator set, installation of a new braking system with a pneumatic board and air preparation and treatment system, application of a modern control and diagnostics system with anti-slip system at start-up and braking, and the installation of railway traffic safety devices.

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