scholarly journals The Evaluation of Experimental Variables for Sustainable Virtual Road Safety Audits

2021 ◽  
Vol 13 (11) ◽  
pp. 5899
Author(s):  
Yeonsoo Jun ◽  
Juneyoung Park ◽  
Chunho Yeom
Keyword(s):  
Road Safety ◽  
Traffic Light ◽  
Scenario Development ◽  
Driving Simulators ◽  
Traffic Condition ◽  
The Road ◽  
Road Pavement ◽  
Net Promoter ◽  
Road Safety Audits ◽  
Road Marking

This paper evaluates experimental variables for virtual road safety audits (VRSAs) through practical experiments to promote sustainable road safety. VRSAs perform road safety audits using driving simulators (DSs), and all objects in the road environment cannot be experimental variables because of realistic constraints. Therefore, the study evaluates the likelihood of recommendation of VRSA experimental variables by comparing DSs experiments and field reviews to secure sustainable road safety conditions. The net promoter score results evaluated “Tunnel”, “Bridge”, “Underpass”, “Footbridge”, “Traffic island”, “Sign”, “Lane”, “Road marking”, “Traffic light”, “Median barrier”, “Road furniture”, and “Traffic condition” as recommended variables. On the contrary, the “Road pavement”, “Drainage”, “Lighting”, “Vehicle”, “Pedestrian”, “Bicycle”, “Accident”, and “Hazard event” variables were not recommended. The study can be used for decision making in VRSA scenario development as an initial effort to evaluate its experimental variables.

scholarly journals Development of Driving Simulation Scenarios Based on Building Information Modeling (BIM) for Road Safety Analysis

2021 ◽  
Vol 13 (4) ◽  
pp. 2039
Author(s):  
Juan F. Dols ◽  
Jaime Molina ◽  
F. Javier Camacho-Torregrosa ◽  
David Llopis-Castelló ◽  
Alfredo García
Keyword(s):  
Road Safety ◽  
Data Exchange ◽  
Building Information Modeling ◽  
Cost Savings ◽  
Safety Analysis ◽  
Information Modeling ◽  
Driving Simulators ◽  
The Road ◽  
Road Design ◽  
Building Information

The analysis of road safety is critical in road design. Complying to guidelines is not enough to ensure the highest safety levels, so many of them encourage designers to virtually recreate and test their roads, benefitting from the evolution of driving simulators in recent years. However, an accurate recreation of the road and its environment represents a real bottleneck in the process. A very important limitation lies in the diversity of input data, from different sources and requiring specific adaptations for every single simulator. This paper aims at showing a framework for recreating faster virtual scenarios by using an Industry Foundation Classes (IFC)-based file. This methodology was compared to two other conventional methods for developing driving scenarios. The main outcome of this study has demonstrated that with a data exchange file in IFC format, virtual scenarios can be faster designed to carry out safety audits with driving simulators. As a result, the editing, programming, and processing times were substantially reduced using the proposed IFC exchange file format through a BIM (Building Information Modeling) model. This methodology facilitates cost-savings, execution, and optimization resources in road safety analysis.

scholarly journals ASSESSMENT OF SPECIAL PLANS AND TECHNICAL DESIGNS WITH REGARD TO TRAFFIC SAFETY

2009 ◽  
Vol 15 (4) ◽  
pp. 411-418 ◽  
Author(s):  
Donatas Čygas ◽  
Vilma Jasiūnienė ◽  
Mantas Bartkevičius
Keyword(s):  
Traffic Safety ◽  
Road Safety ◽  
Road Construction ◽  
Road User ◽  
The Road ◽  
Safety Improvement ◽  
Improvement Measures ◽  
Road Safety Audit ◽  
Road Safety Audits ◽  
Made In

Traffic safety situation in Lithuania, despite the progress made in 2008, is still not good enough compared to the other European Union countries. Therefore, Lithuania implements the traffic safety improvement measures affecting all the elements of the traffic safety system “Road user‐road‐vehicle”. In 2008 Lithuania started implementing the road safety audit procedure which substantially contributes to the improvement of safety situation on Lithuanian roads. This article gives the analysis of road safety audits of special plans and technical designs for road construction and reconstruction in Lithuania, makes the analysis of the main deficiencies of plans and designs and gives recommendations for their elimination. Santrauka Eismo saugumo situacija Lietuvoje, nepaisant 2008 m. pasiektos pažangos, vis dar yra nepakankamai gera, palyginti su kitomis Europos Sąjungos šalimis. Atsižvelgiant į tai, Lietuvoje įgyvendinamos eismo saugumo gerinimo priemonės, darančios įtaką visiems eismo saugumo sistemos „Eismo dalyvis–kelias–transporto priemonė“ elementams. Lietuvoje 2008 m. buvo pradėta taikyti kelių saugumo audito procedūra, kuri prisideda prie eismo saugumo gerinimo Lietuvos automobilių keliuose. Straipsnyje pateikta Lietuvoje atliktų specialiųjų planų ir automobilių kelių tiesimo bei rekonstrukcijos techninių projektų kelių saugumo auditų analizė, išanalizuoti pagrindiniai planų ir projektų trūkumai, pateiktos rekomendacijos jiems šalinti.

scholarly journals Classification and Segmentation of Longitudinal Road Marking Using Convolutional Neural Networks for Dynamic Retroreflection Estimation

Sensors ◽  
2020 ◽  
Vol 20 (19) ◽  
pp. 5560
Author(s):  
Chanjun Chun ◽  
Taehee Lee ◽  
Sungil Kwon ◽  
Seung-Ki Ryu
Keyword(s):  
Neural Networks ◽  
Convolutional Neural Networks ◽  
Road Safety ◽  
Estimation Method ◽  
The Road ◽  
Classification And Regression ◽  
Road Marking ◽  
Reference Plate

Road markings constitute one of the most important elements of the road. Moreover, they are managed according to specific standards, including a criterion for a luminous contrast, which can be referred to as retroreflection. Retroreflection can be used to measure the reflection properties of road markings or other road facilities. It is essential to manage retroreflection in order to improve road safety and sustainability. In this study, we propose a dynamic retroreflection estimation method for longitudinal road markings, which employs a luminance camera and convolutional neural networks (CNNs). The images that were captured by a luminance camera were input into a classification and regression CNN model in order to determine whether the longitudinal road marking was accurately acquired. A segmentation model was also developed and implemented in order to accurately present the longitudinal road marking and reference plate if a longitudinal road marking was determined to exist in the captured image. The retroreflection was dynamically measured as a driver drove along an actual road; consequently, the effectiveness of the proposed method was demonstrated.

QUALITY CONTROL OF HORIZONTAL ROAD MARKING APPLICATION DURING CERTIFICATION OF MARKING MACHINES

2019 ◽  
pp. 24-29
Author(s):  
Yuriy Hostev ◽  
Lev Rumiantsev ◽  
Tetyana Kostrulova
Keyword(s):  
Road Safety ◽  
High Performance ◽  
Paint Layer ◽  
Essential Factor ◽  
The Road ◽  
Machine Type ◽  
Road Signs ◽  
Liquid Paint ◽  
Road Marking

Horizontal road marking along with road signs is an essential factor that ensures road safety. The quality of road markings largely depends on the quality of the application. In today’s, for road marking are used road marking machines. They are complex high-performance automated units requiring highly professional operators. Stink to classify for the way of marking, design of the running gear, base machine, type of drive, productivity and the most important signs. The article describes the principles of the operation of marking machines and the main technical characteristics of machines from leading manufacturers: GRACO, SТiM, Hofmann. When applying road marking, special attention should be paid to the use of certified materials and certified equipment. The results of measuring the geometric and lighting indicators of horizontal road marking are presented. During certification, marking is applied with a marking machine. During the application, the thickness of the liquid paint layer is determined by a calibrated comb. To control the lighting technical characteristics of road marking – whiteness, retroreflectivity (Rl) and brightness (Qd) coefficients, a ZRM 1021 reflectometer and a ZRM 1013 retroreflectometer are used. Geometric indicators were measured with a tape measure. The table of certification results of the Line Lazer IV 3900 machine is shown. Similar indicators were obtained during certification of the machines of Hofmann, Combizet Gruen, RoadLazer, etc. Deviations from the road marking indicators declared by the manufacturer are not observed for 3 years. All marking performed by verified marking machines meets the requirements of current regulations. Keywords: certification of machines, durability of marking, retroreflectivity, accuracy of application, brightness.

Organization of non-traffic jam traffic at an intersection when cycle time and roadway width are limited

2020 ◽  
Keyword(s):  
Traffic Flow ◽  
Road Safety ◽  
Traffic Management ◽  
Road Network ◽  
Traffic Light ◽  
Maximum Capacity ◽  
Traffic Jam ◽  
The Road ◽  
Traffic Management System ◽  
Stop Line

In General, two problems need to be solved in the traffic management system: road safety and capacity. In this paper, it is proposed to use a calculated way to optimize the cycle of a traffic light object in order to ensure the maximum capacity of the node of the road network. The calculation method is based to determining the optimal ratio of the number of lanes intended for vehicle traffic and the duration of a cycle of the traffic light object. Keywords capacity, street and road network, traffic flow, stop line, width of the roadway

ROAD SAFETY AUDIT: A CASE STUDY

2017 ◽  
Vol 4 (1) ◽  
Author(s):  
Cumhur Aydin ◽  
Nura Balla
Keyword(s):  
Road Safety ◽  
Road Accidents ◽  
Contributing Factors ◽  
Middle Income ◽  
The Road ◽  
Middle Income Countries ◽  
Road Projects ◽  
Road Safety Audit ◽  
Road Safety Audits

As a consequence of increasing traffic volume and mobility, road accidents have been a serious problem especially in low and middle-income countries. The number of road accidents in such countries tends to increase every year. Considering different contributing factors to the road accidents, road and its environment have played an important role. Road safety audits and road safety inspections have been worldwide used tools to monitor and to evaluate road projects and existing road sections from the safety perspective. In this study, through the evaluation of different safety auditing techniques applied in the world, a case study on a Nigerian Road Section has been implemented. The expectations from such a study are: (i) To show the main safety deficiencies of the Nigerian road sections; and (ii) To introduce a new tool to the local road authorities to further use it for monitoring their road sections. Based on this study, the audit report was prepared to summarize findings with possible countermeasures.

scholarly journals INVESTIGATION INTO THE STABILITY OF DRIVING AN AUTOMOBILE ON THE ROAD PAVEMENT WITH RUTS

Transport ◽  
2009 ◽  
Vol 24 (2) ◽  
pp. 170-179 ◽  
Author(s):  
Vidmantas Vansauskas ◽  
Marijonas Bogdevičius
Keyword(s):  
Mathematical Model ◽  
Mathematical Simulation ◽  
Road Safety ◽  
Road Surface ◽  
First Line ◽  
The Road ◽  
Road Pavement ◽  
On The Road ◽  
The Stability

The article reviews the stability of an automobile on the road pavement with ruts. The problems of road safety depend on many factors. One of those is the quality of the road surface. Big heavy lorries deform the road surface causing ruts especially in the first line of the road. The article analyzes the influence of the geometry of ruts on the stability of the automobile. A mathematical model of a 3D automobile and the interaction between wheels and the road surface and the geometry of the road surface are presented. The mathematical criterion of the stability of the moving automobile on the road surface with ruts is laid down. The results of mathematical simulation and the criterion of the stability of the moving automobile (60 km/h) on the road surface depending on the depth of ruts are introduced.

scholarly journals ANALYSIS OF PREDICTION METHODS FOR THE FUNCTIONAL DURABILITY OF ROAD MARKINGS

2018 ◽  
Vol 15 (4) ◽  
pp. 574-587 ◽  
Author(s):  
V. V. Golubenko ◽  
A. A. Aleksandrov ◽  
V. V. Sirotyuk
Keyword(s):  
Asphalt Concrete ◽  
Technological Properties ◽  
The Road ◽  
Road Pavement ◽  
Forecasting Methods ◽  
Stone Materials ◽  
Different Types ◽  
Concrete Coating ◽  
Main Factors ◽  
Road Marking

Introduction. The actuality of the research is emphasized in the Strategy of proclaiming the desire for zero mortality on the country’s roads. Increasing the functional durability (the service life period) of horizontal road markings is an effective and cheap way to organize the movement of vehicles and pedestrians, which could reduce the number of accidents by 15-30%.Methods. The detailed factor analysis, influenced on the functional durability of the horizontal road markings and on the durability forecasting methods, is made by the authors.Results. The authors have established the main factors determining the functional durability of the horizontal road marking. They are divided into five groups: weather-climatic; mechanical; properties of the marking material; technological; properties of the road pavement. Moreover, the article presents a critical analysis of the existing methods of forecasting the functional durability of horizontal marking. In foreign publications on the issue under consideration there is no work on the prediction of the functional durability of horizontal marking by creating complex mathematical models. Most foreign and Russian models are based on empirical dependences. However, these methods and models do not take into account a number of important factors, such as the degree of roughness and abrasion of stone materials, their embedding in asphalt concrete coating, etc.Disscussion and conclusion. The authors came to the conclusion that attempts to create a single reliable mathematical model that takes into account more than 40 factors couldn’t be realistic. Therefore, there is a task of developing a number of models that allow to have greater extent that take into account the properties of the road surface, the location and variety of marking lines and predict the functional durability of horizontal road markings for different types of road pavement more reliably.

scholarly journals Pengaturan Lampu Lalu Lintas dengan Simulasi Monte Carlo Studi Kasus : Perempatan Daerah Dago � Bandung

2016 ◽  
Vol 2 (2) ◽  
Author(s):  
Iryanto Iryanto ◽  
Dinan Andiwijayakusuma
Keyword(s):  
Monte Carlo ◽  
Coupling Parameter ◽  
Heavy Traffic ◽  
Traffic Light ◽  
Traffic Condition ◽  
Rule Based ◽  
Main Road ◽  
Traffic Jam ◽  
The Road ◽  
Better Than

One of the areas that often become a source of traffic jam is road intersection. So it will be crucial to manage the intersection. Every intersection in main road is common to have traffic light and every cycle of the lamp, red, green and orange, will influence the traffic. The traffic cycle will have significant role to decrease or increase effects of the problem. Inappropriate regulation for the intersection can cause traffic jam or a heavy traffic jam in the road. Sometimes every intersection needs different rule based on the traffic condition. Therefore is truly needed to manage the traffic light in every intersection. With the simulation we can know whether the rule for the traffic light has appropriated to the intersection's traffic condition. If the rule is not optimal yet, we can change the rule with the optimal one. In the research, two methods are used, using coupling parameter and without coupling parameter. Average of vehicle Arrival in each intersection is used as coupling parameter. As its result, using coupling parameter is better than without using coupling parameter.

Selected issues of research on the impact of intelligent transport systems on road safety with the use of driving simulators

2019 ◽  
Vol 126 ◽  
pp. 29-37
Author(s):  
Tomasz Kamiński ◽  
Małgorzata Pędzierska ◽  
Kamila Gąsiorek
Keyword(s):  
Road Safety ◽  
Economic Effects ◽  
Transport Systems ◽  
Driving Simulators ◽  
Intelligent Transport Systems ◽  
Intelligent Transport ◽  
The Road ◽  
Variable Content ◽  
On The Road ◽  
The Impact

The article describes the impact of information displayed to drivers on boards with variable content and presented on the static table, on drivers' decisions regarding the selection of an alternative route. The results of the research obtained in the RID 4D project titled "Impact of the use of Intelligent Transport Systems services on the level of road safety" financed by the National Center for Research and Development and the General Directorate of National Roads and Motorways (DZP/RID-I-41/7/NCBR / 2016 agreement). The article describes an attempt to assess the economic effects of implementing selected ITS solutions. Based on the impact of selected ITS solutions on the speed of driving, an assessment was made of the increase of safety on the road, using as a measure the number of people killed, severely and slightly injured. The whole article is summarized by conclusions.

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