scholarly journals Raspberry Pi-Based Low-Cost Connected Device for Assessing Road Surface Friction

Electronics ◽  
2019 ◽  
Vol 8 (3) ◽  
pp. 341 ◽  
Author(s):  
Miha Ambrož ◽  
Uroš Hudomalj ◽  
Alexander Marinšek ◽  
Roman Kamnik
Keyword(s):  
Traffic Safety ◽  
Road Network ◽  
Low Cost ◽  
Measurement Data ◽  
Automatic Measurement ◽  
Raspberry Pi ◽  
Measuring Device ◽  
The Road ◽  
Measuring Devices ◽  
On The Road

Measuring friction between the tyres of a vehicle and the road, often and on as many locations on the road network as possible, can be a valuable tool for ensuring traffic safety. Rather than by using specialised equipment for sequential measurements, this can be achieved by using several low-cost measuring devices on vehicles that travel on the road network as part of their daily assignments. The presented work proves the hypothesis that a low cost measuring device can be built and can provide measurement results comparable to those obtained from expensive specialised measuring devices. As a proof of concept, two copies of a prototype device, based on the Raspberry Pi single-board computer, have been developed, built and tested. They use accelerometers to measure vehicle braking deceleration and include a global positioning receiver for obtaining the geolocation of each test. They run custom-developed data acquisition software on the Linux operating system and provide automatic measurement data transfer to a server. The operation is controlled by an intuitive user interface consisting of two illuminated physical pushbuttons. The results show that for braking tests and friction coefficient measurements the developed prototypes compare favourably to a widely used professional vehicle performance computer.

scholarly journals Application of the GWR Model for Predicting the Road Fatalities Rate on the Road Network in the Nuts 3 Regions in Europe on the Example of Kuyavian-Pomeranian Voivodeship

2020 ◽  
Vol 50 (1) ◽  
pp. 215-236
Author(s):  
Joanna Wachnicka ◽  
Katarzyna Palikowska
Keyword(s):  
Traffic Safety ◽  
Road Network ◽  
Safety Management ◽  
Road Traffic ◽  
The Road ◽  
Road Traffic Safety ◽  
Geographically Weighted Regression Model ◽  
On The Road ◽  
Administrative Units ◽  
Gwr Model

AbstractThe article presents the application of the GWR (Geographically Weighted Regression) model to the description of differences in the level of road traffic safety in individual counties on the example of the Kuyavian-Pomeranian Voivodeship. The GWR model developed for counties, taking into account the diversity of NUTS 3 regions, can be a helpful tool for traffic safety management in voivodships and lower administrative units, and such an approach has not yet been applied.

scholarly journals Road Traffic Safety Analysis Of Different Junction Types On The State Roads

2021 ◽  
Vol 1202 (1) ◽  
pp. 012034
Author(s):  
Valentina Amare ◽  
Juris Smirnovs
Keyword(s):  
Traffic Safety ◽  
Road Network ◽  
Traffic Accidents ◽  
Road Traffic ◽  
Road Accidents ◽  
The Road ◽  
Road Traffic Safety ◽  
Road Capacity ◽  
On The Road ◽  
The Impact

Abstract The highest number of road accidents occurs at junctions. One of the aims of traffic organisation is to improve traffic safety in these areas. Based on a variety of indices – road capacity, points of conflict, number, and severity of road traffic accidents – different alternatives for junctions are evaluated. However, the road network has many junctions and roads serve to travel from point "A" to point "B" at a given time. Therefore, one of the most important tasks when addressing the issue of road safety is to find a rational way of improving the safety without losing the importance of the road. The aim of this paper is to analyse the impact of different junctions on the road network and basing on actual data develop a method for the evaluation of different types of junctions with respect to road class.

scholarly journals Implementation of modern tools for the improvement of the road infrastructure on the Trans-European road network – road safety inspection (RSI)

2019 ◽  
Vol 65 (2) ◽  
pp. 49-53
Author(s):  
Miladin Nešić ◽  
Dušan Mladenović ◽  
Mirjana Ilić ◽  
Ivana Andrijanić ◽  
Mirko Koković ◽  
...  
Keyword(s):  
Traffic Safety ◽  
Road Safety ◽  
Road Network ◽  
Black Spot ◽  
Pilot Project ◽  
Road Accident ◽  
Road Infrastructure ◽  
The Road ◽  
The Law ◽  
On The Road

The European Directive on the Road Infrastructure Safety Improvement (2008/96/EC) has established the implementation of appropriate procedures as the basic tools for improving the road infrastructure on the trans-European road network. The Law on Roads (2018) prescribes the implementation of the following procedures: Road safety impact assessment; Road safety audit; Road safety inspection; Risk mapping; Black spot identification; and In depth road accident studies. The Law on Roads also prescribes that the Minister will prescribe the manner of implementation and the contents of the Evaluation, Audit and Independent Assessment reports, as well as the manner of determining the major risk portions and the identification and ranking of hazardous sites (black spots). Since the method of implementation and the content of the report are not yet prescribed, the authors contributed in this paper to defining the manner of implementation and content of the traffic safety report on the example of the section of the highway, as the highest category of state road. In the framework of the training of auditors and auditors, among others, a pilot project was carried out for the safety of traffic on the part of the E-75 (A1) highway, about 2,7 km ahead of the Mali Požarevac loop, including the loop. The verified part of the highway also includes a ramp with a toll ramp, service facility, overpass, bridge, etc., so the selected checked part is representative for defining a recommendation for the mode of implementation and the model for the preparation of the report.

Road Maintenance with Opti-Grade®: Maintaining Road Networks to Achieve the Best Value

2003 ◽  
Vol 1819 (1) ◽  
pp. 282-286 ◽  
Author(s):  
Mark Brown ◽  
Steve Mercier ◽  
Yves Provencher
Keyword(s):  
Road Network ◽  
Low Cost ◽  
Travel Speed ◽  
Road Maintenance ◽  
Engineering Research ◽  
The Road ◽  
Road Management ◽  
Lack Of Information ◽  
Degradation Models ◽  
On The Road

Road management systems rely on the availability of quality information to make good decisions. A lack of information on the condition of the Canadian forest industry’s unpaved road network led to inappropriate management decisions. To fill this information gap the Forest Engineering Research Institute of Canada (FERIC) developed the Opti-Grade road management system. Opti-Grade is a low-cost tool that provides information about the road roughness and travel speed as the equipped road user’s vehicle travels on the road network. This information can then be used to focus grading activities where they will have the greatest impact on the road condition for the money invested. Further, over time, a history of the behavior of the roads can be built. With this history, degradation models can quickly and easily be produced to see which segments of the road network degrade the quickest and the most frequently. Problem segments can be identified. Valuable road evaluation budgets can then be focused on those sections to determine the cause of the problem. That will allow precious rehabilitation budgets to be focused where they can have the greatest impact. Opti-Grade is currently used by a large sector of FERIC member forest companies with payback periods shorter than 4 months. FERIC continues to improve the software to manage the data from the Opti-Grade system and increase the abilities of the decision support tools in the software.

scholarly journals Real-Time Driver Alert System Using Raspberry Pi

2019 ◽  
Vol 17 (2) ◽  
pp. 193-203 ◽  
Author(s):  
Jie Yi Wong ◽  
Phooi Yee Lau
Keyword(s):  
Real Time ◽  
Low Cost ◽  
Economic Losses ◽  
Raspberry Pi ◽  
Alert System ◽  
Driving Experience ◽  
The Road ◽  
Car Accidents ◽  
Passenger Safety ◽  
On The Road

Malaysia has been ranked as one of the country in the world with deadliest road. Based on the statistic, there are around 7000 to 8000 people in the country died on the road among the population of 31 million Malaysians every year. In general, Advances Driver Assistance System (ADAS) aims to improve not only the driving experience but also consider the overall passenger safety. In recent years, driver drowsiness has been one of the major causes of road accidents, which can lead to severe physical injuries, deaths and significant economic losses. In this paper, a vison-based real-time driver alert system aimed mainly to monitor the driver’s drowsiness level and distraction level is proposed. This alert system could reduce the fatalities of car accidents by detecting driver’s face, detecting eyes region using facial landmark and calculating the rate of eyes closure in order to monitor the drowsiness level of the driver. Later, the system is embedded into the Raspberry Pi, with a Raspberry Pi camera and a speaker buzzer, and is used to alert the driver in real-time, by providing a beeping sound. Experimental results show that proposed system is practical and low-cost which could (1) embed the drowsiness detection module, and (2) provide alert notification to the driver when the driver is inattentive, using a medium loud beeping sound, in real-time.

scholarly journals Performance of slope stabilization trials on the road network of Laos

2020 ◽  
Vol 54 (1) ◽  
pp. qjegh2020-064 ◽  
Author(s):  
G. Hearn ◽  
J. Howell ◽  
T. Hunt
Keyword(s):  
Road Network ◽  
Low Cost ◽  
Slope Stabilization ◽  
The Road ◽  
Engineering Measures ◽  
Ground Conditions ◽  
On The Road ◽  
Bioengineering Techniques ◽  
Future Practice ◽  
Heavy Rains

Landslides pose significant hazards on the road network of Laos. These landslides frequently block access and occasionally result in the subsidence or loss of the carriageway. Several slope stabilization trials focusing on the use of bioengineering techniques and low-cost engineering measures were implemented in 2007 and 2008. Heavy rains in 2018 caused numerous landslides on the road network and a review was undertaken of the performance of the slope stabilization trial sites implemented ten years earlier. The outcome has proved very positive overall and vindicates the efforts made to understand the causes and mechanisms of the observed slope failures and the ground conditions that pertained. The outcomes of this research have been used to strengthen practice in Laos, and further afield, and to provide a valuable basis for future practice.

scholarly journals The Usability of Different Skid Resistance Characteristics in Road Assessment

2014 ◽  
Vol 10 (2) ◽  
pp. 80-87
Author(s):  
Matúš Kováč ◽  
Peter Kotek
Keyword(s):  
Road Network ◽  
Skid Resistance ◽  
Water Tank ◽  
Model Surface ◽  
Measuring Device ◽  
The Road ◽  
The Past ◽  
Texture Characteristics ◽  
Surface Profiles ◽  
On The Road

Abstract The article was created as a reaction on the request of the Slovak Road Administration, whether it would be possible to evaluate level of friction on the road network only by using laser equipped device Profilograph GE, instead of by using longitudinal friction coefficient measuring device Skiddometer BV11, which is slow, much more difficult on operation and it is necessary to fulfil the water tank for measurements. In order to find out the answer, there were evaluated measurements performed on road sections in Slovakia for the past few years. The main goal was to compare results obtained by both devices, and to find a relevant correlation between them. For better understanding of the problematic and for the demonstration of disadvantages of some texture characteristics, there are performed a comparisons of the different parameters evaluated on model surface profiles in the end of this work.

ACCIDENT ANALYSIS – THE WAY TO EFFECTIVE TRAFFIC SAFETY MANAGEMENT ON ROADS

2021 ◽  
pp. 46-52
Author(s):  
Tetiana Bondar ◽  
Olga Belenchuk ◽  
Yevhen Tepliuk ◽  
Oleksandr Pyna
Keyword(s):  
Traffic Safety ◽  
Road Safety ◽  
Road Network ◽  
Safety Management ◽  
Road Traffic ◽  
Road Accident ◽  
Maximum Efficiency ◽  
Road Accidents ◽  
The Road ◽  
On The Road

Road safety management begins with a detailed analysis of accidents, which is reflected in Article 24 of the Law of Ukraine “On Road Traffic” which states that when performing repairs and maintenance of roads, streets and railway crossings road maintenance organizations in the first place should take measures for road safety on the basis of accounting and analysis of road accidents, results of inspections and surveys of roads, streets and railway crossings, and especially in emergency and dangerous areas and in places of concentration of road accidents. The problem of reducing the accident rate and reducing the number of victims of road accidents during the maintenance of roads has so far been solved mainly by identifying areas (places) of concentration of accidents with the development of measures to improve road conditions and improve the organization of traffic on them and conducting annual commission spring and autumn inspections of the road network by representatives of road organizations and the police. However, the areas of concentration of road accidents were not fully covered on the road network of local significance due to the lack of accurate reference of the places of accident in the accident registration cards, as well as they were not identified on the streets and roads of cities and other settlements due to the absence of any criteria for their identification and therefore the maximum efficiency from introduction of management of sites (places) of concentration of road accident isn’t reached. The article analyzes the criteria for determining the areas of concentration of accidents on public roads in different periods, examines the dynamics of the number of areas of concentration of accidents and considers other modern opportunities for effective traffic safety management, in particular, inspection (inspection) of existing roads.

scholarly journals Study on the Road Friction Database for Automated Driving: Fundamental Consideration of the Measuring Device for the Road Friction Database

2021 ◽  
Vol 12 (1) ◽  
pp. 18
Author(s):  
Ichiro Kageyama ◽  
Yukiyo Kuriyagawa ◽  
Tetsunori Haraguchi ◽  
Tetsuya Kaneko ◽  
Motohiro Asai ◽  
...  
Keyword(s):  
Friction Coefficient ◽  
Traffic Safety ◽  
Surface Condition ◽  
Automated Driving ◽  
Friction Coefficients ◽  
Measuring Device ◽  
Friction Characteristics ◽  
The Road ◽  
Road Friction ◽  
On The Road

This study deals with the possibility of construction of a database on the braking friction coefficient for actual roads from the viewpoint of traffic safety, especially for automated driving, such as level 4 or higher. At these levels of automated driving, the controller needs to control the vehicle. However, the road surface condition, especially the road friction coefficient on wet roads and snowy or icy roads, changes greatly, and in some cases, changes by almost one order. Therefore, it is necessary for the controller to constantly collect environment information, such as the road friction coefficients, and prepare for emergencies, such as obstacle avoidance. However, at present, the measurement of the road friction coefficients is not systemically performed, and a method for accurately measuring has not been established. In order to improve this situation, this study examines a method for continuous measurement of the road friction characteristics, such as the μ-s characteristics. It is shown that the μ-s characteristics are continuously measured using the MF generally used in tire engineering, and the friction characteristics identified from the results are sufficiently satisfactory.

scholarly journals Politics, industry, and tourism: The conceptual construction of the blue highway

2020 ◽  
pp. 002252662097950
Author(s):  
Fredrik Bertilsson
Keyword(s):  
Road Network ◽  
Power Plants ◽  
Community Building ◽  
Atlantic Coast ◽  
Political Agenda ◽  
The Road ◽  
Conceptual Construction ◽  
On The Road ◽  
Post War

This article contributes to the research on the expansion of the Swedish post-war road network by illuminating the role of tourism in addition to political and industrial agendas. Specifically, it examines the “conceptual construction” of the Blue Highway, which currently stretches from the Atlantic Coast of Norway, traverses through Sweden and Finland, and enters into Russia. The focus is on Swedish governmental reports and national press between the 1950s and the 1970s. The article identifies three overlapping meanings attached to the Blue Highway: a political agenda of improving the relationships between the Nordic countries, industrial interests, and tourism. Political ambitions of Nordic community building were clearly pronounced at the onset of the project. Industrial actors depended on the road for the building of power plants and dams. The road became gradually more connected with the view of tourism as the motor of regional development.

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