Automotive enterprises flow production improvement based on the management process intellectualization

© 2018 IEEE. The analysis of optimization methods of the flow organization of technological assembly processes, shows that the problem should be solved in a complex manner. The scheme of interaction of decision support system (DSS) modules for the automotive enterprise is presented. The simulation model of the process of installing a pre-starting liquid engine heater (PLEH) is developed. The adequacy assessment of the developed simulation model is carried out based on the average values of the model and system responses. The optimization of the simulation model based on the number of distributed workers in positions is made. The average installation time of one PLEH decreased by 12%, the maximum time - by 9.5%

Yes, size does matter (for cycling safety)! Comparing behavioral and safety outcomes in S, M, L, and XL cities from 18 countries

Although most actions aimed at promoting the use of active transport means have been conducted in ‘large’ cities, recent studies suggest that their cycling dynamics could hinder the efforts put into infrastructural, modal share, and cycling culture improvements. Aim The present study aimed to assess the role of city sizes on riding behavioral and crash-related cycling outcomes in an extensive sample of urban bicycle users. Methods For this purpose, a full sample of 5705 cyclists from >300 cities in 18 countries responded to the Cycling Behavior Questionnaire (CBQ), one of the most widely used behavioral questionnaires to assess risky and positive riding behaviors. Following objective criteria, data were grouped according to small cities (S; population of 50,000 or fewer), medium cities (M; population between 50,000 and 200,000), large cities (L; population between 200,000 and one million), and megacities (XL; population larger than one million). Results Descriptive analyses endorsed the associations between city size, cycling behavioral patterns, and mid-term self-reported crash outcomes. Also, it was observed a significant effect of the city size on cyclists' traffic violations and errors (all p < .001). However, no significant effects of the city size on positive behaviors were found. Also, it stands out that cyclists from megacities self-reported significantly more violations and errors than any of the other groups. Further, the outcomes of this study suggest that city sizes account for cycling safety outcomes through statistical associations, differences, and confirmatory predictive relationships through the mediation of risky cycling behavioral patterns. Conclusion The results of the present study highlight the need for authorities to promote road safety education and awareness plans aimed at cyclists in larger cities. Furthermore, path analysis suggests that “size does matter”, and it statistically accounts for cycling crashes, but only through the mediation of riders' risky behaviors

Risk analysis in the appointment of the trucks’ warranty period operation

© 2019, Springer Nature Switzerland AG. Reliability is currently one of the factors affecting the competitiveness of vehicles. Vehicles become highly reliable due to the integrated approach to all stages of their “life cycle”: design, production and operation. The most important for the manufacturer is the warranty service, because this stage is characterized by an increased probability of failure, and the manufacturer takes responsibility for their elimination. The authors propose to take into account the risks of failures of various units, assemblies and systems of the car during the appointment of the warranty period. This study used the statistics of failures received from the dealer and the service network, and from the reliability department of the engine manufacturer. The results of the study show that the use of the proposed methodology will reduce the costs of the truck manufacturer

Digitalization and New Opportunities of Urban Mobility

The digital age opens up new opportunities in the field of transport. A new transportation paradigm for the Smart City is being introduced, which enables dynamic intelligent travel on demand, called mobility as a service, to provide customers with personalized mobility services. They are taking into account the needs and preferences of users and allow to book a service that is provided using the available modes of transport. The article presents the concept of an intelligent passenger transportation service called Social Mobility on Demand, which provides personalized services adapted to the special needs of passengers using a list of travel options in real time for each passenger request. The system allows passengers to choose an acceptable option using a set of options, as well as operators to optimally allocate vehicles for different types of travel: taxi, shared taxi and minibus. Such rational travel planning will reduce the load on the road network, as well as the negative impact on the environment

Automotive enterprises flow production improvement based on the management process intellectualization

© 2018 IEEE. The analysis of optimization methods of the flow organization of technological assembly processes, shows that the problem should be solved in a complex manner. The scheme of interaction of decision support system (DSS) modules for the automotive enterprise is presented. The simulation model of the process of installing a pre-starting liquid engine heater (PLEH) is developed. The adequacy assessment of the developed simulation model is carried out based on the average values of the model and system responses. The optimization of the simulation model based on the number of distributed workers in positions is made. The average installation time of one PLEH decreased by 12%, the maximum time - by 9.5%

Risk analysis in the appointment of the trucks’ warranty period operation

© 2019, Springer Nature Switzerland AG. Reliability is currently one of the factors affecting the competitiveness of vehicles. Vehicles become highly reliable due to the integrated approach to all stages of their “life cycle”: design, production and operation. The most important for the manufacturer is the warranty service, because this stage is characterized by an increased probability of failure, and the manufacturer takes responsibility for their elimination. The authors propose to take into account the risks of failures of various units, assemblies and systems of the car during the appointment of the warranty period. This study used the statistics of failures received from the dealer and the service network, and from the reliability department of the engine manufacturer. The results of the study show that the use of the proposed methodology will reduce the costs of the truck manufacturer

Eksperyment symulacyjny jako instrument optymalizacji systemów transportowych

In the article the matters connected with the firm service system optimization using the simulation experiment are shown. It is analyse in short by the results of computer experiment execution, and useful guidelines are given.W artykule przedstawione zostały zagadnienia związane z możliwością wykorzystania eksperymentów symulacyjnych do optymizacji systemów transportowych na przykładzie przedsiębiorstwa usługowego. Analizie zostały poddane wyniki eksperymentów symulacyjnych, które posłużyły do sformułowania wniosków

Online Learning as a Necessary Measure During a Pandemic and as an Opportunity to Increase the Engineering Education Efficiency

This research aim was to analyze problems, which educational systems are facing in the global upheaval era, statement of tasks, which must be solved, as well as search for solutions. The engineering education system has been improved in recent years through the use of new features, which are provided by e-learning software. Future engineers will require such skills as creative thinking, ability to make informed, effective decisions, as well as social responsibility and eco-thinking. The research was carried out on the tools used to organize online learning during the COVID-19 pandemic in several universities. It gave a possibility to compare the effectiveness of using different virtual environments to organize the training of different profiles’ engineers, as well as to analyze the educational content and its difference from that used in traditional classroom teaching. To make a correct assessment, evaluation criteria were identified, which can be formalized, and also motivational characteristics were classified, which can be influenced on the quality improvement. For a case study, different student’s groups were selected to compare them involvement in the process with traditional and online training forms as well as their performance. Additionally, was done an analysis how a training form impacts on their projects quality

Association rules to identify factors affecting risk and severity of road accidents

© 2020 by SCITEPRESS - Science and Technology Publications, Lda. All rights reserved The current increase in automobilization leads to a decrease in road safety. Therefore, the purpose of this research is to analyze and identify the causes that significantly affect the risk and severity of accidents. For this purpose, both histograms plotting and association rules were used. The statistics of traffic accidents in Elabuga town for 2017-2018 were taken as initial information. To identify the most traumatic types of traffic accidents, graphs of the number of accidents by types of accidents and the number of victims for 2017-2018 were constructed. It was found that the greatest number of injured (wounded or dead) is observed in collisions and hitting a pedestrian. Then, road sections of the concentration of accidents were analyzed, the most common types of accidents and the main violations of traffic rules that contribute to the occurrence of accidents were determined. To identify hidden relationships between factors and accidents with severe consequences, association rules were applied. As a result, the influence of weather conditions, quality of road infrastructure and marking was established

The Role of Reverse Logistics in the Transition to a Circular Economy: Case Study of Automotive Spare Parts Logistics

The article describes the ways of industrial development in the era of transition from a linear model of the economy to a circular model, as well as new trends in the development of logistics. It shows the interconnection of processes in production systems, logistics and services, their role in ensuring sustainable green growth. It is shown that by closing the loop of product lifecycles, reverse logistics plays an important role to transitioning to a circular economy. The article presents an example of planning the supply of spare parts when organizing services in foreign markets. Planning is based on multidimensional analysis of failure and modeling data. For this purpose, an information system was developed. The found failure probabilities of units and parts were used to build a model of the reverse logistic chain, within which the parameters of the formation of a reverse flow, differentiated for various operating conditions and vehicle subsystems, were introduced for the first time