scholarly journals Optimization of fleet maintenance cost on the basis of Piła’s Public Transportation Company

2018 ◽  
Vol 19 (6) ◽  
pp. 442-446
Author(s):  
Piotr Gorzelańczyk ◽  
Adam Koczorowski
Keyword(s):  
Cost Analysis ◽  
Public Transportation ◽  
Cost Optimization ◽  
Maintenance Cost ◽  
Petrol Station ◽  
Transportation Company

The article concerns the costs related to maintaining the transport fleet of Piła’s Public Transportation Company. The first part describes the Company itself. The second part was based on the data provided in the article “Transportation fleet maintenance cost analysis on the example of Piła’s Public Transportation Company” and prepared a fleet cost optimization plan. It proposed the reduction of fuel purchase by organizing an on-site petrol station as well as replacement of buses generating the largest costs. The study also described the proposal of obtaining founds for purchase of new buses.

Benefit-to-Cost Analysis Framework for Intersection Illumination: A Case Study of Rural Conventional Intersections in Georgia

2019 ◽  
Vol 2673 (9) ◽  
pp. 83-93
Author(s):  
Franklin E. Gbologah ◽  
Angshuman Guin ◽  
Roger Purcell ◽  
Michael O. Rodgers
Keyword(s):  
Cost Effectiveness ◽  
Cost Analysis ◽  
Public Transportation ◽  
Cost Model ◽  
Simulation Models ◽  
Cost Effective ◽  
Maintenance Cost ◽  
Cost Ratio ◽  
Night Time

Lighting provides one of the most effective night-time intersection safety countermeasures. However, lighting is also one of the main contributors to intersection maintenance and operation costs. For a public transportation agency with jurisdiction over many intersections, the system-wide lighting costs can significantly deplete already limited funds for other important maintenance projects. A sound framework for conducting benefit-to-cost trade-off analysis would be beneficial to transportation agencies. Unfortunately, published works on the benefit-to-cost analysis are few and mostly dated. This paper outlines a detailed framework for conducting benefit-to-cost analysis for rural intersection lighting. The framework uses intersection lighting simulation models to generate annualized operating and maintenance cost data for different lighting levels. The intersection lighting models were developed with DIALux® professional lighting software. This study used the framework to conduct a case study of rural conventional three-leg and four-leg intersections with at least an annual average daily traffic (AADT) of 500 from Georgia. Based on the available Georgia case study data, this paper finds that for rural intersection locations that require no electrification, basically any illumination level, including those less than the recommended minimum of 8 lux, is likely to be cost-effective for any entering AADT. However, locations that require electrification need to be evaluated based on the overall costs, entering AADT, existing crash rate, and a target benefit-to-cost ratio that signifies the level of cost-effectiveness required by the state Department of Transport (DOT). Consequently, a companion spreadsheet benefit-to-cost model has been developed to facilitate the cost-effectiveness analysis at any rural uncontrolled or stop-controlled intersection.

Proposing a basic methodology for developing balanced scorecard by system dynamics approach

Kybernetes ◽  
2015 ◽  
Vol 44 (6/7) ◽  
pp. 1049-1066 ◽  
Author(s):  
Seyed Behnam Khakbaz ◽  
Nastaran Hajiheydari
Keyword(s):  
System Dynamics ◽  
Balanced Scorecard ◽  
Public Transportation ◽  
Time Delays ◽  
Scenario Planning ◽  
Content Type ◽  
Integrated Framework ◽  
Management Scenario ◽  
Transportation Company

Purpose – Successful future has inspired organizations to measure long-term and non-financial measurements and key performance indicators (KPIs). Kaplan and Norton proposed balanced scorecard (BSC) for this issue and have extended it to one of the most preferred strategic management system’s tools. However, available planning tools like BSC have some limitations, like dependency to the developer, weakness in showing time delays, and also mathematical relationships between lead and lag indicators. In this paper, the authors would present a new methodology for developing BSCs, which would be able to overcome these limitations. Therefore, the purpose of this paper is to develop an integrated framework for developing BSC with system dynamics approach (a dynamic BSC (DBSC)) which has lower limitation in compare with traditional BSC. The other purpose of this paper is developing a DBSC for an Iranian public transportation company. Design/methodology/approach – Based on this purpose, related literature was thoroughly reviewed and the proposed methodology designed using the system dynamics and BSC concepts. This methodology is a composition of original BSC development methodology and system dynamics principles. An assumed organization has been used for showing methodology’s capability and procedure. Furthermore, a case study has been accomplished in this paper. This case study is a DBSC which has been developed for an Iranian public transportation company. The purpose of this case study is to ensure about proposed methodology implication in action. Findings – The authors proposed a methodology which can be applied for developing BSCs. This methodology consists of six different steps which are: developing a system for organization, selecting stakeholders’ most important objectives and target, identifying organization’s objectives and their KPIs for different BSC aspects, developing strategy map, targeting, and selecting initiatives. In the proceeding of this paper, the proposed methodology and its steps would be explained in detail. Originality/value – The system dynamic approach has precedents in business studies; however, this research makes this approach operational in BSC designing and analysis. BSCs, which developed by this methodology can show time delays between an organization’s objectives, its KPIs’ relationship and also planning for it. Selecting achievable and rational vision and objectives’ targets, change management, scenario planning and policy analysis are other values which can be achieved by DBSC deployment which need further researches. In summary, this research has shown an integrated framework for developing DBSC and then applies it to an Iranian public transportation company. Therefore, another contribution of this paper is the application of this method for an Iranian public transportation company.

scholarly journals Probabilistic Maintenance Cost Analysis for Aged Multi-Family Housing

2019 ◽  
Vol 11 (7) ◽  
pp. 1843 ◽  
Author(s):  
Moonsun Park ◽  
Nahyun Kwon ◽  
Joosung Lee ◽  
Sanghyo Lee ◽  
Yonghan Ahn
Keyword(s):  
Cost Analysis ◽  
Preventive Maintenance ◽  
Natural Aging ◽  
Sustainable Construction ◽  
Maintenance Cost ◽  
Expert Interviews ◽  
Planning Tool ◽  
Construction Planning ◽  
Maintenance Costs ◽  
Family Housing

To realize sustainable construction, planning for future maintenance costs is essential. In the case of multi-family housing, various maintenance issues can be expected to appear starting 10 years after completion. Therefore, preventive maintenance must be implemented in a systematic manner to cope with the problems caused by the natural aging of multi-family dwellings and to maintain a sustainable level of quality for the properties. In this study, maintenance costs were investigated for 224 multi-family housing units aged 20 years or older in Seoul, South Korea. Using Monte Carlo simulation in conjunction with expert interviews, a probabilistic maintenance cost analysis was conducted to analyze and estimate the variability in maintenance costs. The findings of the study propose that the use of probabilistic maintenance cost analysis can be developed into a useful planning tool for determining reasonable future maintenance costs in sustainable construction.

Improving an App for Visually Impaired Travelers

2020 ◽  
pp. 164-185
Author(s):  
Sebastian Molinillo ◽  
Francisco J. Liébana-Cabanillas ◽  
Diego Gómez-Carmona ◽  
Miguel Ruiz-Montañez
Keyword(s):  
Focus Groups ◽  
Public Transportation ◽  
Mobile Applications ◽  
Visually Impaired ◽  
Qualitative Methodology ◽  
Visual Impairments ◽  
Perceptions And Attitudes ◽  
And Performance ◽  
Transportation Company

Some public transportation companies have begun to develop mobile applications that facilitate the accessibility to their services for people with visual impairments. Nevertheless, despite their importance, up until now, very few studies have analyzed the particular characteristics and needs of this segment of the population in order to adapt the design of and services provided by this type of application. The objective of this study is to understand how users interact with this technology. This research is based on an analysis of the application developed by the Malagueña Transportation Company (EMT). Given its exploratory nature, a qualitative methodology was used based on focus groups with the participation of experts and users. The results allow the authors to learn about users' opinions, perceptions, and attitudes towards these applications, and to help guide strategies to improve their design and performance.

A Life Cycle Cost Analysis Approach for Selection of a Typical Heavy Usage Multistage Centrifugal Pump

2006 ◽  
Author(s):  
Laxman Y. Waghmode ◽  
Ravindra S. Birajdar ◽  
Shridhar G. Joshi
Keyword(s):  
Life Cycle ◽  
Cost Analysis ◽  
Centrifugal Pump ◽  
Life Cycle Cost ◽  
Lifetime Cost ◽  
Maintenance Cost ◽  
Life Cycle Costs ◽  
Life Cycle Cost Analysis ◽  
Initial Cost ◽  
Multistage Centrifugal Pump

It is well known that the pumps are the largest consumers of industrial motor energy and account for more than 25% of electricity consumption. The life cycle cost of a pump is the total lifetime cost associated with procurement, installation, operation, maintenance and its disposal. For majority of heavy usage pumps, the lifetime energy and/or maintenance cost will dominate the life cycle costs. Hence a greater understanding of all the cost components making up the total life cycle costs should provide an opportunity to achieve a substantial savings in energy and maintenance costs. This will further enable optimizing pumping system efficiency and improving pump and system reliability. Therefore in this context, the life cycle cost analysis of heavy usage pumps is quite important. This paper focuses on an application of a methodology of determining the life cycle cost of a typical heavy usage multistage centrifugal pump. In this case, all the cost components associated with the pump-set have been determined and classified under different categories. The data with regard to initial investment costs, operation costs, maintenance and repair costs and disposal costs for the pump considered for this case study was collected from the concerned pump manufacturer along with the unit cost of each component, quantity used and their weights. By applying the principles of reliability and maintainability engineering and using the data obtained from the design, manufacturing and maintenance departments, the component-wise values of MTBF (Mean Time Between Failures) and MTTR (Mean Time To Repair) were estimated. The results of the life cycle cost analysis of the specimen pump were compared with the life cycle costs of similar pumps reported in the literature. From this comparison of results, it can be concluded that, the initial cost of the pump is the only a fraction of the total life cycle cost. The operating cost of the pump dominates the life cycle costs especially in case of heavy usage pumps. The maintenance cost varies approximately from 0.6 to 2.5 times the initial cost of the pump. The life cycle cost of the pump varies approximately from 12 to 33 times the initial cost of the pump. The operation and maintenance cost is almost 92 to 97 per cent of the life cycle cost. The detailed analysis carried out in this paper is expected to provide guidelines to the pump manufactures/practicing engineers in selecting a heavy usage multistage centrifugal pump based on the total lifetime cost rather than only on initial price.

scholarly journals Soil bioengineering in northeastern Brazil: An Overview

2021 ◽  
Vol 16 (4) ◽  
pp. 1
Author(s):  
Francisco Sandro Rodrigues Holanda ◽  
Renisson Neponuceno de Araújo Filho ◽  
Alceu Pedrotti ◽  
Bradford Paul Wilcox ◽  
Regina Helena Marino ◽  
...  
Keyword(s):  
Native Species ◽  
Cost Optimization ◽  
Research Work ◽  
Northeastern Brazil ◽  
Maintenance Cost ◽  
Native Flora ◽  
Soil Bioengineering ◽  
Local Materials ◽  
Bioengineering Techniques

This article presents an overview of the application of soil bioengineering techniques, also modeled as natural engineering, in the state of Sergipe, northeastern Brazil, showing the importance of integrating living and inert elements to protect river banks from erosion. The employed techniques are different, ranging from the characterization of susceptibility to erosion to the use of biotechniques, considering knowledge in the areas of agronomic engineering, forestry engineering, civil engineering, biology, pedology, geology, geomorphology and geotechnics. It is an approach that uses techniques and methodologies in a multidisciplinary way, seeking to maximize synergies (for example, natural engineering techniques to combine inert materials in ways that help plants to develop increasingly efficient systems). This approach also considers maintenance-cost optimization in the conduction of the works, using different materials, differing from traditional engineering, which uses predominantly inert materials. The research work carried out in different locations sought the availability of local materials such as rocks, geotextiles made from fibers from the native flora or even available on the market, in addition to the use of native species to recovery of the banks or slopes, according to the ecological conditions of the northeastern Brazil. Size and technological and ecological reach were also considered, in addition to different biotechnical aesthetic objectives adapted to different situations.

Sign in / Sign up

Export Citation Format

Share Document