Evaluation of the Impact of Spatial and Environmental Accident Factors on Severity Patterns of Road Segments

Ghadi, Maen; Török, Árpád

doi:10.3311/pptr.14692

Cited by 8 publications

(4 citation statements)

References 25 publications

(33 reference statements)

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“…However, they ignored spatial variables that may have a significant impact. In [17], to classify the collected segments by severity degree, the empirical Bayesian technique was used. The decision rules technique was used to determine the major attributes that lead to accidents in specific segments.…”

Section: Introductionmentioning

confidence: 99%

Black spots identification on rural roads based on extreme learning machine

Mbarek

Jiber

Yahyaouy

et al. 2023

IJECE

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<span lang="EN-US">Accident black spots are usually defined as road locations with a high risk of fatal accidents. A thorough analysis of these areas is essential to determine the real causes of mortality due to these accidents and can thus help anticipate the necessary decisions to be made to mitigate their effects. In this context, this study aims to develop a model for the identification, classification and analysis of black spots on roads in Morocco. These areas are first identified using extreme learning machine (ELM) algorithm, and then the infrastructure factors are analyzed by ordinal regression. The XGBoost model is adopted for weighted severity index (WSI) generation, which in turn generates the severity scores to be assigned to individual road segments. The latter are then classified into four classes by using a categorization approach (high, medium, low and safe). Finally, the bagging extreme learning machine is used to classify the severity of road segments according to infrastructures and environmental factors. Simulation results show that the proposed framework accurately and efficiently identified the black spots and outperformed the reputable competing models, especially in terms of accuracy 98.6%. In conclusion, the ordinal analysis revealed that pavement width, road curve type, shoulder width and position were the significant factors contributing to accidents on rural roads.</span>

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Section: Introductionmentioning

confidence: 99%

Black spots identification on rural roads based on extreme learning machine

Mbarek

Jiber

Yahyaouy

et al. 2023

IJECE

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“…This article presents a pilot-study for the above-described network research, focusing on the Hungarian capital, Budapest and its agglomeration area (Figure 1), which is a frequently researched area in transportation sciences, such as [16][17][18][19][20]. In general, Budapest is divided by the river Danube.…”

Section: Boundaries and Structure Of The Examined Network Description...mentioning

confidence: 99%

Disaster Risk Assessment Scheme—A Road System Survey for Budapest

et al. 2023

Self Cite

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This study presents a method to analyze the most critical elements of the public road system concerning outer effects which hinder the normal operation of the whole system. The surveyed public road network in Budapest, Hungary is studied as a graph: Dijkstra’s algorithm is applied to find the shortest path, and the Boykov-Kolmogorov method is used to calculate the maximum flow of the network. Those elements are identified whose damage can critically influence the operation of the network, and where the infrastructure available for rescue teams has a bottleneck. Finally, the Wilcoxon post hoc test was applied with Bonferroni correction. The tests have proven that the new method can successfully identify the critical vulnerabilities of the network to determine its weak points by considering reduced road capacities and the increased needs for transportation arising due to a disaster. This pilot study confirmed that after the elimination of the problems in statistical methods, the new framework can robustly identify those road network elements whose development is of key importance from a disaster management perspective.

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“…End-of-life aircraft contains a lot of materials and parts that can be recycled. Therefore, an aircraft has a rest value, which should be recovered (Ghadi and Török, 2021). This is the first motivation for recycling.…”

Section: End-of-life Aircraft Components Recycling and Materials Reco...mentioning

confidence: 99%

Holistic approaches and advanced technologies in aviation product recycling

Yakovlieva

Бойченко

Kale

et al. 2021

AEAT

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Purpose The purpose of this study is to analyze existing policies, methods and technologies, which are aimed at the rational and proper handling of decommissioned aviation transport means, determination of the world trends and substantiation of the prospects for implementation of utilization and recycling programs in the aviation industry. This research is devoted to problems of utilization and recycling of decommissioned aircraft and its components: features of proper handling of aviation industry vehicles are considered; the analysis of existing methods and technologies aimed at the rational and correct handling of the end-of-life aircraft is carried out; the necessity of the introduction of the system of complex utilization of aviation equipment is substantiated; the ecological and economic problems connected with the utilization and recycling of aviation vehicles, their units and units are considered; and the relevance and feasibility of introducing recycling programs in the field of aviation industry waste management are substantiated. Design/methodology/approach Problems of utilization and recycling of decommissioned aircraft and its components are considered in this research. The analysis of existing methods and technologies aimed at the rational and correct handling of the end-of-life aircraft is carried out. In addition to this, the ecological and economic problems connected with the utilization and recycling of aviation vehicles, their units and parts are considered. Moreover, the relevance and feasibility of introducing recycling programs in the field of aviation industry waste management are substantiated. Findings In this study, the life cycle of aircraft is carried out and analyzed. The existing methodologies and approaches to end-of-life aircraft recycling and utilization are presented in this paper. The experience of the leading organizations in the sphere of decommissioned aircraft recycling, such as Aircraft Fleet Recycling Association and Process for Advanced Management of End-of-Life Aircraft, are considered as well. Environmental and economical benefits to aviation and neighbor industries, arising from the introduction of aircraft recycling systems, are shown. Originality/value The existing experience of leading companies in the aviation and aircraft recycling industry is accumulated and analyzed to show and propose the general methodology for the development and implementation methodology of end-of-life aircraft recycling and utilization.

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Evaluation of the Impact of Spatial and Environmental Accident Factors on Severity Patterns of Road Segments

Cited by 8 publications

References 25 publications

Black spots identification on rural roads based on extreme learning machine

Black spots identification on rural roads based on extreme learning machine

Disaster Risk Assessment Scheme—A Road System Survey for Budapest

Holistic approaches and advanced technologies in aviation product recycling

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