scholarly journals The use of road weather information system data for the forecasts of climatic conditions

2015 ◽  
Vol 10 (1) ◽  
pp. 71-78
Author(s):  
Alfredas Laurinavičius ◽  
Lina Bertulienė ◽  
Arina Minkevič
Keyword(s):  
Winter Season ◽  
Theoretical Background ◽  
Climatic Conditions ◽  
Road Maintenance ◽  
The Road ◽  
Weather Information ◽  
Road Users ◽  
System Data ◽  
Selection Of

The article studies possibility by using the data of the Road Weather Information Systems to forecast the beginning of precipitation on the roads maintained by the state road maintenance enterprises. The article discusses the importance of forecasts both to the road users as well as road maintenance enterprises, especially in a cold period of the year. The hazards caused by meteorological phenomena specific of winter season are presented. Research methodology is described which is based on the speed of movement of clouds carrying precipitation. To calculate speed the theoretical background is given assisting in selection of certain parameters for the determination of this value. Knowing the speed of movement of clouds the forecasts have been made. Results of the forecasts are compared to the real parameters and it is determined in what radius the forecasts are advisable to be made.

scholarly journals Assessment model of levels for winter road maintenance

2017 ◽  
Vol 12 (2) ◽  
pp. 127-134 ◽  
Author(s):  
Tomas Ratkevičius ◽  
Alfredas Laurinavičius
Keyword(s):  
Traffic Accidents ◽  
Assessment Model ◽  
Road Maintenance ◽  
The Road ◽  
Road Users ◽  
Foreign Countries ◽  
Winter Road ◽  
Winter Time ◽  
National Significance ◽  
Winter Road Maintenance

The limited funding for the road industry leads to economizing in the planning of road network maintenance, to identifying the appropriate priorities of the activities with the greatest benefit for the society. The level of maintenance is the direct assessment of the road operation and maintenance service provided to the road users; it directly affects the road maintenance and for road users costs the better is road maintenance, the road users incur the fewerexpenses and vice versa. Insufficient road maintenance in the winter time causes not only the danger of traffic accidents but also worsens the driving conditions, increases the fuel consumption, vehicle depreciation, transportation becomes more expensive. Many results of studies showed that the current choice of maintenance levels in the winter time taking into account only the road category and traffic volume does not ensure the indicators of the most advanced world countries and road functional purpose. The principle of the minimal expenses for the society should be the main criterion in identifying the optimal levels of winter road maintenance. The experience of Lithuania and foreign countries helped in creating the model of assessment of winter maintenance levels for Lithuanian roads of national significance, which can be applied in the other foreign countries as well. This model could be an effective tool for the selection of the optimal maintenance levels, which would economically substantiate the winter road maintenance strategy, that best corresponds to the needs of the society.

scholarly journals A Geostatistical Investigation into the Effective Spatiotemporal Coverage of Road Weather Information Systems in Alberta, Canada

2018 ◽  
Vol 2018 ◽  
pp. 1-11
Author(s):  
Xu Wang ◽  
Lian Gu ◽  
Tae J. Kwon ◽  
Tony Z. Qiu
Keyword(s):  
Information Systems ◽  
Weather Conditions ◽  
Road Maintenance ◽  
The Road ◽  
Weather Information ◽  
Geostatistical Approach ◽  
Adverse Weather ◽  
Winter Road ◽  
Winter Road Maintenance

Inclement weather acutely affects road surface and driving conditions and can negatively impact traffic mobility and safety. Highway authorities have long been using road weather information systems (RWISs) to mitigate the risk of adverse weather on traffic. The data gathered, processed, and disseminated by such systems can improve both the safety of the traveling public as well as the effectiveness of winter road maintenance operations. As the road authorities continue to invest in expanding their existing RWIS networks, there is a growing need to determine the optimal deployment strategies for RWISs. To meet such demand, this study presents an innovative geostatistical approach to quantitatively analyze the spatiotemporal variations of the road weather and surface conditions. With help of constructed semivariograms, this study quantifies and examines both the spatial and temporal coverage of RWIS data. A case study of Alberta, which is one of the leaders in Canada in the use of RWISs, was conducted to indicate the reliability and applicability of the method proposed herein. The findings of this research offer insight for constructing a detailed spatiotemporal RWIS database to manage and deploy different types of RWISs, optimize winter road maintenance resources, and provide timely information on inclement road weather conditions for the traveling public.

Winter Road Condition Recognition Using Video Image Classification

1998 ◽  
Vol 1627 (1) ◽  
pp. 29-33 ◽  
Author(s):  
Andreas Kuehnle ◽  
Wilco Burghout
Keyword(s):  
Network Architecture ◽  
Video Camera ◽  
Road Maintenance ◽  
Video Cameras ◽  
The Road ◽  
Weather Information ◽  
Road Condition ◽  
Maintenance Decisions ◽  
Winter Road ◽  
Hidden Neurons

Sweden spends 1.7 billion Crowns on winter road maintenance annually. A large part of this money goes into plowing, salting, and sanding of the roads. The decision about what maintenance to perform is made, in part, based on data received from road weather information stations, some of which are also equipped with video cameras. These video cameras form an additional unexploited sensor for determining the road condition during winter. Images taken from a handheld roadside video camera are investigated here to see if it is possible to determine the road state (dry, wet, snowy, icy, snowy with tracks) from the video images alone. The system is intended to supplement the other weather station measurements, such as temperature and wind speed, and make better maintenance decisions and quality control of maintenance possible. The results indicate that it is possible to distinguish between all road states except for ice/wet and ice/tracks. Typical class separations are a Mahanalobis distance between 0 and 2. Neural networks with three or four input features, three to five hidden neurons, and a sigmoid-sigmoid-linear architecture are used to classify the road state. Rates of correct classification are typically 40 to 50 percent with these networks. There are useful feature combinations, including purely monochrome features, which do not depend on the network architecture.

Evaluation Of Major Causes Of Road Accidents Along North–East Highway, Nigeria

2015 ◽  
Vol 73 (4) ◽  
Author(s):  
Arafat Suleiman Yero ◽  
Tijanni Y Ahmed ◽  
Mohd Rosli Hainin
Keyword(s):  
Road Traffic ◽  
Road Accident ◽  
Eastern Region ◽  
Road Maintenance ◽  
Vehicle Accidents ◽  
The Road ◽  
Goods And Services ◽  
North East ◽  
The North ◽  
Road Users

A major road link in the North-Eastern region of Nigeria is the Bauchi – Maiduguri highway that is a 425 km road that links a section of the north east region to other regions of Nigeria. The goods and services to the region are basically transported by road.  This has increased vehicular traffic that resulted in increased road accident rates over the years.  It is paramount to investigate the major causes of vehicle accidents on this highway as much has not been done to investigate accident cases on the route. The five year accident record on that route was obtained from the Federal Road Safety Corp of Nigeria,   the Nigeria Police traffic unit, and the Nigeria union of road traffic workers. The study indicated that speed violation by drivers and bad road conditions contributes greatly in the rate of accidents along the route. Hence the study recommends better road maintenance culture and more sensitization of the road users and enforcement of speed limits.

Diagnosis of the Optimum Location of the Police Vehicle Central Console — Oculometric Tests

2019 ◽  
Vol 10 (2) ◽  
pp. 9-17
Author(s):  
Piotr Łuka ◽  
Andrzej Urban
Keyword(s):  
Police Officers ◽  
Optimal Level ◽  
Optimal Location ◽  
Police Academy ◽  
The Road ◽  
Road Users ◽  
Questionnaire Surveys ◽  
Research Consortium ◽  
Police Vehicles

In the publication, the authors refer to the study carried out as a part of the research project: “Classification of the Police vehicles according to their destination, taking into account their purpose and standardization of the vehicle central console, in the field of arrangement and installation of ICT systems and the devices controlling special purpose signals”, implemented by a scientific consortium, funded by the National Centre for Research and Development. The described research involved the determination of the optimal location for the central console of the Police service vehicle. The first part of the publication contains partial results of the questionnaire surveys that were carried out among the users of Police vehicles. The second part discusses the research carried out with the participation of the Police officers driving the vehicles. The simulator was used to test vehicles in typical and extreme conditions, located at the Police Academy in Szczytno. The research consisted in the use of an oculometer, installed in the simulator. Conclusions from the conducted research allowed to propose an optimal location of the vehicle central console. The indicated location in the assessment of the research team allows to minimize the risk of the occurrence of hazards, related to the need to take the business vehicle away from the road, and is therefore appropriate to ensure the optimal level of safety for the driver and other road users. The results of the research carried out, after their confrontation with the results of the study conducted by other participants of the research consortium, will allow to propose a solution that can significantly improve safety, ergonomics and comfort of official duties performed by the drivers of the serivice vehicles.

Features for modeling situations for testing on the assessment of the tactical and psychological preparedness of the staff of road patrol service of state traffic Inspectorate

2016 ◽  
Vol 1 (3) ◽  
pp. 6-6
Author(s):  
Петров ◽  
Vladislav Petrov
Keyword(s):  
Traffic Accidents ◽  
Behavioral Responses ◽  
Role Playing ◽  
Model Base ◽  
Traffic Police ◽  
Psychological Techniques ◽  
Road Users ◽  
Psychological Training ◽  
Selection Of

The article is devoted to the analysis and description of technology of simulation of professional situations for testing the evaluation of the tactical and psychological preparedness of employees dorozhno-patrol service of traffic police. The algorithm development simulated situations, which includes such stages as: 1) analyzing the statistics of traffic accidents and violations of traffic regulations; 2) analysis of typical behavioral responses of drivers and other road users; 3) determination of the basic tactical and psychological techniques that are modeled in role-playing situations and complicating the interaction; 4) selection of the model (base) behavioral responses of drivers; 5) assessment of the possibility of modeling and adaptation of driver behaviors. Examples of descriptions of the simulated situations. Cited in the article, the material can be used in the design and conduct of the competition on the tactical and psychological training of the personnel of the state traffic Inspectorate and the education of future employees of the traffic police.

scholarly journals Map support of winter road maintenance

Geografie ◽  
2009 ◽  
Vol 114 (3) ◽  
pp. 218-229
Author(s):  
David Konečný
Keyword(s):  
Road Maintenance ◽  
Winter Maintenance ◽  
The Road ◽  
Weather Information ◽  
Maintenance System ◽  
Road Condition ◽  
System Operator ◽  
Winter Road ◽  
Weather Stations ◽  
Maintenance Activities

The aim of this paper is to present road weather information system and map sources which can be used by winter maintenance system operator to clarify his perception of road meteorological situation in order to be able to take well-founded decision while managing maintenance activities. Presently the so-called status map showing current warnings from road weather stations is the principal map in winter maintenance. In its new version displaying the map of any feature measured by outstations as well as layer handling and zooming will be available. Map outputs of the model forecasting the road condition and temperature are described in the last chapter.

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 Risk analysis on implementation of road maintenance project with STEPLE method in Badung, Bali

2019 ◽  
Vol 276 ◽  
pp. 02012
Author(s):  
Ida Bagus Rai Adnyana ◽  
Dewa Ketut Sudarsana
Keyword(s):  
Risk Assessment ◽  
Risk Mitigation ◽  
Road Maintenance ◽  
The Road ◽  
Road Users ◽  
Surrounding Environment ◽  
Assessment Matrix ◽  
Mitigation Effort ◽  
Descriptive Method

In the implementation of the road maintenance project always risks arise. These risks have an impact on stakeholders related to the execution of the project, the community of road users and the surrounding environment. These risks need to be studied, managed, and assessed as a risk-mitigation effort for stakeholders. As the case study is the district road maintenance project, in Badung regency of Bali. Descriptive method used in the study. Identification of variable risk used STEPLE (Social, Technology, Economy, Politics, Legal, and Environment) method. The factors STEPLE is identified through literature review and brainstorming, then used as a questionnaire instrument. Respondents are experts involved in road maintenance projects in Badung regency. Risk assessment uses a risk assessment matrix. The results of the study found 36 risks. These risks are identified as dominant from the Technical variable that is 13 risks. Risk assessment found is 6 risks classified as unacceptable, and 30 risk classified as undesirable.

scholarly journals An Improved Algorithms of Stroke Generation Considering Multi-level Information Quantity

2019 ◽  
Vol 1 ◽  
pp. 1-2
Author(s):  
Yi Liu ◽  
Wenjing Li ◽  
Zhiyong Lin
Keyword(s):  
Road Network ◽  
Structural Characteristics ◽  
Network Structures ◽  
Information Quantity ◽  
The Road ◽  
Level Information ◽  
Feature Information ◽  
Multi Level ◽  
Selection Of

<p><strong>Abstract.</strong> As a critical component of road network data, stroke has been widely used in analysis and application of road network. However, most conventional stroke generation strategies are based solely on a regular angle threshold, ignoring the structural characteristics of the road network. In fact, map information comes from the diversity and difference of elements and their distribution characteristics. Different road network structures should also correspond to different angle thresholds, rather than a fixed value. Therefore, quantitatively describing the structure characteristics of road network, has an important impact on the determination of the threshold in stroke generation strategies. In this paper, we propose an algorithm of stroke generation based on spatial feature information, which achieves the selection of the optimal threshold under different road network structures.</p>

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