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 High-Accuracy Tracking Using Ultrawideband Signals for Enhanced Safety of Cyclists

2017 ◽  
Vol 2017 ◽  
pp. 1-13 ◽  
Author(s):  
Davide Dardari ◽  
Nicoló Decarli ◽  
Anna Guerra ◽  
Ashraf Al-Rimawi ◽  
Víctor Marín Puchades ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Real Time ◽  
High Accuracy ◽  
Experimental Results ◽  
Localization Error ◽  
Localization System ◽  
Dynamic Conditions ◽  
The Road ◽  
Road Users

In this paper, an ultrawideband localization system to improve the cyclists’ safety is presented. The architectural solutions proposed consist of tags placed on bikes, whose positions have to be estimated, and anchors, acting as reference nodes, located at intersections and/or on vehicles. The peculiarities of the localization system in terms of accuracy and cost enable its adoption with enhanced risk assessment units situated on the infrastructure/vehicle, depending on the architecture chosen, as well as real-time warning to the road users. Experimental results reveal that the localization error, in both static and dynamic conditions, is below 50 cm in most of the cases.

scholarly journals Improving V2X-6G network capacity using a new UAV-based approach in a Cloud/ICN architecture, case Study: VANET network

2021 ◽  
Vol 297 ◽  
pp. 01019
Author(s):  
Abdeslam Houari ◽  
Tomader Mazri
Keyword(s):  
Mobile Networks ◽  
Network Capacity ◽  
Intelligent Environment ◽  
New Approach ◽  
The Road ◽  
Road Users ◽  
Aerial Vehicle ◽  
On The Road

6G of mobile networks plays a crucial role in improving the capacity and enhancing the quality of services of Vehicle-to-Everything (V2X) based networks evolving in an intelligent environment. VANET is a promising project in the intelligent transportation field using V2X communications. The emergence of several 5G and 6G technologies has raised several challenges for scientists and researchers to allow vehicles and road users to enjoy several services while ensuring their safety on the road. Among these technologies, the unmanned aerial vehicle (UAV), which can perform different tasks for road users and vehicle drivers such as data caching, packet relaying and processing. In this article, we present a new approach based on 6G Unmanned Aerial Vehicles (UAV) technology on a vehicular cloud architecture while exploiting the exchange support of information-centric networking (ICN) for the improvement of network capacity.

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 Road Safety Analysis of Urban Roads: Case Study of an Italian Municipality

Safety ◽  
2018 ◽  
Vol 4 (4) ◽  
pp. 58 ◽  
Author(s):  
Francesca Demasi ◽  
Giuseppe Loprencipe ◽  
Laura Moretti
Keyword(s):  
Road Safety ◽  
Hazard Index ◽  
Traffic Volume ◽  
Analytical Methodology ◽  
The Road ◽  
Risk Of Death ◽  
Road Users ◽  
Homogeneous Section ◽  
Vulnerable Road Users

Attention to the most vulnerable road users has grown rapidly over recent decades. The experience gained reveals an important number of fatalities due to accidents in urban branch roads. In this study, an analytical methodology for the calculation of urban branch road safety is proposed. The proposal relies on data collected during road safety inspections; therefore, it can be implemented even when historical data about traffic volume or accidents are not available. It permits us to identify geometric, physical, functional, and transport-related defects, and elements which are causal factors of road accidents, in order to assess the risk of death or serious injuries for users. Traffic volume, average speed, and expected consequences on vulnerable road users in case of an accident allow us to calculate both the level of danger of each homogeneous section which composes the road, and the hazard index of the overall branch. A case study is presented to implement the proposed methodology. The strategy proposed by the authors could have a significant impact on the risk management of urban roads, and could be used in decision-making processes to design safer roads and improve the safety of existing roads.

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.

scholarly journals Kinerja Peiayanan Jaringan Transportasi Jalan Nasional Trans Maluku Pulau Ambon

2019 ◽  
Vol 24 (2) ◽  
pp. 118
Author(s):  
Anotnius Sihaloho ◽  
M Yamin Jinca
Keyword(s):  
Road Safety ◽  
Road Network ◽  
Swot Analysis ◽  
Transportation Network ◽  
The Road ◽  
Road Users ◽  
Island Group ◽  
Quantitative Descriptive ◽  
National Road ◽  
Descriptive Method

Trans Maluku is a national transportation network that links 12 island groups in Maluku Province. Island Group XII is Ambon Island that became PKN of Maluku province. This study aimed to find out ltaw tlte performance of the national road network in Island Group XII of Ambon Island and formulate development strategies. Analysis using quantitative descriptive method and SWOT analysis. 71ze results of the national road network Passo-Galala, Lahthalat- Batu Gantong and Waihaong-Batu Merah indicates that: indicators of accessibility, capacity and integrated quite effectively. Indicators are classified as not effective is Road Safety. The use of tire road network of relatively efficient aspects of tire VCR. Construction of support facilities necessary for the security of road users and an increase in financing the road network.

scholarly journals Rest Area Development in Central Java (Case Study: Rest Area on Semarang–Solo Toll Road)

2021 ◽  
Vol 4 (1) ◽  
pp. 1-8
Author(s):  
Edy Darmawan ◽  
Suzanna Ratih Sari ◽  
Hermin Werdiningsih ◽  
Adhisti Samsinar Enis
Keyword(s):  
Tourism Industry ◽  
Toll Roads ◽  
The Road ◽  
Toll Road ◽  
Central Java ◽  
Road Users ◽  
Rest Areas ◽  
Qualitative Descriptive ◽  
Published Research

The construction of the road network is carried out to support the growth and acceleration of the economic process and the development of the tourism industry. It is also projected to improve the socio-economic conditions of the community. In the last few years, the Central Java Government has built toll roads to connect several cities in Central Java in one fast lane. However, it was not followed by the construction of supporting facilities such as rest area that serves a place to rest for motorists when they experience fatigue during long trips. The existence of the place is still limited, and it was not evenly distributed along the toll road, causing long queues at the entrance of some rest area when the volume of the vehicles is overflow. Based on these problems, the purpose of this research is to study and develop the requirement of rest area that can meet the needs of motorists traveling through the toll roads in Central Java. To achieve these objectives, this research used a qualitative descriptive method to describe and explain the problems in the field, and further analyze them to get a comprehensive result. The result of this research is presented in the form of published research reports and scientific articles. It is expected to provide benefits to the relevant scientific field, especially those related to architecture in developing rest areas that suit the needs of road users.

scholarly journals Transit versus Nature. Depreciation of Environmental Values of the Road Alleys. Case Study: Gamerki-Jonkowo, Poland

2019 ◽  
Vol 11 (6) ◽  
pp. 1816 ◽  
Author(s):  
Marzena Suchocka ◽  
Magdalena Błaszczyk ◽  
Adam Juźwiak ◽  
Joanna Duriasz ◽  
Adam Bohdan ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Traffic Safety ◽  
Natural Habitat ◽  
Environmental Values ◽  
Environmental Stability ◽  
Insect Species ◽  
Ecological Stability ◽  
Protected Species ◽  
The Road

Road alleys are multifunctional features in open landscapes that serve as ecological corridors connecting habitats, and play an important role in sustaining ecological stability. However, multiple road authorities claim that tree-lined routes pose a threat to traffic safety and should therefore be removed. This aspect of safety seems crucial to authorities, significantly overwhelming the benefits of road alleys. Problems with the vitality of the trees (which are mainly mature and aging) deliver arguments for cutting them down. The aim of this paper is to examine the environmental and natural value of road alleys based on a 14 km long section of the Gamerki—Jonkowo Road in the Province of Warmia (Northeast Poland). Further, we aim to verify the degree of hazard posed by trees to be felled for safety reasons. An examination framework with six components was developed for the research. This framework includes a tree risk assessment and vitality evaluation, pulling tests, an examination of the protected hermit beetle and lichen species, and an examination of bat fauna. The results revealed that no trees were in the resignation phase and confirmed that the alley is a unique natural habitat with protected species of lichen, a few bats, and valuable insect species, among others the hermit beetle (Osmoderma barnabita). Therefore, the alley cannot be perceived only as a component of the road infrastructure. The maintenance of the trees seems to be essential when taking into account the environmental stability of the region.

Risk to Bicyclists in a Separated Path from Left Turns across Multiple Lanes: A Case for Protected-Only Left Turns

2021 ◽  
pp. 036119812110107
Author(s):  
Ray Saeidi Razavi ◽  
Peter G. Furth
Keyword(s):  
Opposite Direction ◽  
Signalized Intersections ◽  
Left Turn ◽  
The Road ◽  
Turn On ◽  
Road Users ◽  
Green Ball ◽  
Left Turns ◽  
The Right

At signalized intersections, permitted left turns (i.e., on a green ball, after yielding) across multiple through lanes and across a separated bike lane or bike path present a threat to bicyclist safety. A conflict study of two such intersections with a bidirectional bike path found that when cyclists cross while a vehicle is ready to turn left and there is no opposing through traffic to block it, the chance of the left-turning motorist yielding safely was only 9%, and the chance of their yielding at all—including yielding only after beginning the turn, then stopping in the opposing through lanes—was still only 37%. Motorist non-yielding rates were worse toward bikes arriving during green, toward bikes approaching from the opposite direction (i.e., riding on the right side of the road), and toward bikes facing a queue with multiple left turning vehicles. Of 112 cyclists who arrived on green when there was at least one left-turning car, but no opposing through traffic blocking it, 73 had to slow or stop to avoid a collision. Although these conflicts could be essentially eliminated using protected-only left turn phasing (turn on green arrow), common existing criteria prefer permitted left turns to reduce vehicular delay. A case study shows how, by considering multiple signalization alternatives, it can be possible to convert left turns to protected-only phasing without imposing a substantial delay burden on vehicles or other road users.

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