Mathematical model for selecting the best technology for restoring road construction machines

Belyaev, A. O.; Гордиенко, В. В.; Druzhinin, Petr; Evtukov, Sergey

doi:10.1051/e3sconf/202016403044

Cited by 54 publications

(6 citation statements)

References 8 publications

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“…The volume of bridge construction performed over the past 10-12 years has already exceeded the corresponding value for the previous 20 years (Poltava & Korchagin, 2019). In recent years, numerous studies were conducted in the field of improving the reliability and efficiency of the operation of road and construction facilities and vehicles, development, design and implementation of traffic control systems (Belyaev , 2020).…”

Section: Background Of the Studymentioning

confidence: 99%

Factors Affecting Cost and Execution Period of Trail Bridge Construction Project in Nyamagabe District, Rwanda

2023

JEPM

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The general objective of this study was to assess the factors affecting execution period (delays) of trail bridge construction project in Nyamagabe district of Rwanda, in southern Province. The study was guided by the following objectives: To assess the effects of environmental factors on bridge completion period in Nyamagabe district, to assess the effect of financial factors on bridge completion period in Nyamagabe district and to assess the effect of changes on bridge completion period in Nyamagabe district. A sample of 80 individuals was selected from a pool of 396 participants involved in the construction of bridges. The data analysis was conducted using SPSS Version 23, and the primary tool for data collection was a questionnaire. Linear regression analysis was employed to identify the factors that influence the delays in the execution period, with a 95% confidence interval and a statistically significant threshold set at a P-value of less than 0.05. The study revealed a significant negative influence of environmental factors on the completion of bridge construction projects, as evidenced by the regression coefficient of 0.425 and the t-value of -0.343. This statistical significance was confirmed by the p-value of 0.002, which is below the threshold of 0.05. The study also identified that financial issues may have an impact on the timely completion of the project, as indicated by the regression coefficient of -0.142 and the t-value of 1.655. However, the statistical analysis showed that this relationship was not statistically significant, as the p-value of 0.102 is above the significance level of 0.05. Furthermore, the study revealed negative effects of changes that occur during the implementation of bridge projects in Nyamagabe District. This is evident from the regression coefficient of -0.294 and the t-value of -3.318, both of which are statistically significant. The p-value of 0.001 is less than the threshold of 0.05, indicating a significant impact of changes on the project.his study concluded that environmental factors and changes related factors have a negative influence on the project execution. This means that those factors contribute more in the delaying and execution of project. Through this, the project stakeholders should conduct deep situational analysis in order to avoid cost and time overrun.

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Section: Background Of the Studymentioning

confidence: 99%

Factors Affecting Cost and Execution Period of Trail Bridge Construction Project in Nyamagabe District, Rwanda

2023

JEPM

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“…Centralized restoration of worn-out components and components should be organized at the level of large-scale or mass production, and their replacement, when restoring the performance of automobile engines, at enterprises with a significantly lower concentration of work [3,5]. Such maintenance can be performed at centralized maintenance bases that would serve several motor transport companies, and would have simple equipment for disassembly and assembly and related work.…”

Section: Theoretical Researchmentioning

confidence: 99%

Improving the efficiency of maintenance of heavy-duty engines

2021

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“…Economic study inputs include the service life in years for each piece of equipment (which is computed from the manufacturer-specified operational hours) and interest rate. Thus, the study shall include all lifecycle costs associated with each equipment [13] [14].…”

Section: Introductionmentioning

confidence: 99%

Economic Analysis of Construction Equipment in Public Projects in Jordan

Hammad

2023

ijmst

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Escalating project costs in Jordan is a great challenge for public project managers and decision-makers. This research aims to calculate the financial feasibility of owning versus renting heavy equipment. Real data were collected from 12 public construction governorates in Jordan. The data covered rental and ownership costs of construction equipment over two years 2021& 2022. Present worth analysis over a 10-year service life showed that The ownership option is found economically feasible over the year-long rental option at a monetary saving of 30,000 JD per equipment per year. The cumulative curve for the year-long rental breaks even with the equipment ownership curve in the eighth year. After eight years of life, the ownership option becomes economically favored over the year-long rental option. On the other hand, the on-call rental option is found economically feasible compared to the ownership option with over 120,000 JD savings per equipment per year. Finally, research conclusions provide insight for government decision-makers to save substantial costs from the public project budget.

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Mathematical model for selecting the best technology for restoring road construction machines

Cited by 54 publications

References 8 publications

Factors Affecting Cost and Execution Period of Trail Bridge Construction Project in Nyamagabe District, Rwanda

Factors Affecting Cost and Execution Period of Trail Bridge Construction Project in Nyamagabe District, Rwanda

Improving the efficiency of maintenance of heavy-duty engines

Economic Analysis of Construction Equipment in Public Projects in Jordan

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