scholarly journals DEVELOPMENT OF A COMPREHENSIVE PEDESTRIAN FOOTBRIDGE MANAGEMENT SYSTEM

2020 ◽  
Vol 11 (2) ◽  
pp. 132-143
Author(s):  
Claude Munyaneza Munyaneza ◽  
Leopold Mbereyaho

The footbridges in rural areas have been crucial as the only mean to overcome the rural isolation and allow breaking the cycle of poverty by providing access to such development facilities like education opportunities, markets, medical clinics and other basic services. In Rwanda, under collaboration with Engineers without Borders from German, and International Non-Government Organization Bridge to Prosperity (B2P, some footbridges are already built. In line with the agreement with B2P around 355 bridges are also planned in 5 years. The key challenge is to optimally allocate resources in order to maintain this number of bridges, especially under the current financial constraints. The purpose of this paper was to investigate and propose a pedestrian footbridge management system for Rwanda (PFBMS) which should allow the efficient bridge management, through the analysis of condition data, determination of the ranking and priority of bridge maintenance activities, as well as evaluation of the alternatives of preservation or replacement. The methodology comprises of the use of interview and discussions with district engineers in charge of bridge management, local community using the constructed footbridges as well as bridge builders from B2P. Microsoft Excel analysis tool has been used to developing the deterioration model, and therefore the PFBM was proposed. It is concluded that this system can accurately predict optimal maintenance planning as well as bridge rating.

Author(s):  
Ayaho Miyamoto ◽  
Kei Kawamura ◽  
Hideaki Nakamura

Recently, the necessity of developing a practical bridge management system (BMS) has been pointed out in Japan, because the maintenance of existing bridges has become a major social concern. The aim of this study was to develop a practical BMS for deteriorated concrete bridges. The proposed system (J-BMS) uses multilayered neural networks to predict deterioration processes in existing bridges, to construct an optimal maintenance plan for repair or strengthening measures based on minimizing life-cycle cost, and to estimate the maintenance cost. A comparison of the results of applying this system to some actual in-service bridges with the results of questionnaire surveys of experts indicates that optimal maintenance planning as well as bridge rating can be predicted accurately by this system.


2017 ◽  
Vol 9 (3) ◽  
pp. 526-540 ◽  
Author(s):  
Gintarė Vaznonienė ◽  
Rasa Pakeltienė

Abstract This article reveals the importance of different methods for assessment of social infrastructure (SI) development needs in rural areas. Rural social infrastructure is a significant element of rural territories interpreted in different ways: as social and economic system, basic services for local community, social bridge for integrating different social groups into the society, important factor for satisfaction of rural people’s needs and acknowledgement of their human rights. Besides the mentioned importance of SI to rural areas and rural community, the lack of exploration of methods for analysis of the needs for developing rural social infrastructure has been noticed in the scientific literature. The research aim is therefore to analyse the methods for assessment of needs of rural social infrastructure. The research question has been set accordingly: how different methods for need analysis could be applied to social infrastructure planning and development? The research results show that need analysis is generally linked to various methods, but for the SI planning, development and implementation specifically, there are certain methods, the application of which depends on specifics of rural areas (as territory) and features of local community.


2021 ◽  
Vol 2021 (23) ◽  
pp. 158-166
Author(s):  
Larysa Bodnar ◽  
◽  
Serhii Stepanov ◽  
Serhii Zavhorodniy ◽  
Vitalii Yastrubinetskyi ◽  
...  

Introduction. In recent years in Ukraine, the weight and traffic volume of vehicles on the roads have increased significantly. Most of the bridges that are operating on these roads were built according to norms, the design loadings of which are not corresponding to the modern loadings on transport facilities.Problem Statement. The issue of bridges operation with defects of the structure in the condition of limited funding of the road industry become particularly relevant at the present stage, as the age of bridges is constantly increasing, and the resource of their elements is being expiring.Due to limited funding, the economic and time components of the designed models have a significant impact on the quality of performed calculations and the determination of the optimal strategy for performing of repairing work in specified conditions. The choice of planned works is determined during repairing plans development, both for evaluation of the current state of bridges and for determination of predicted bridge repairing terms.Purpose. the purpose of the work is the development of further optimization of the mode of repairs plan development to eliminate existing defects of bridges.Materials and methods. During the determination of repairs cost in the Analytical Expert Bridge Management System (AESUM), the average norms of the work volume were used. This method was limited by the fact that cost calculations were constant and did not consider actual defects of the bridges. The experience of the constructed bridges operation over 40–50 years revealed a significant number of various defects of structure, mainly of spans and piers. The causes of defects are long-term operation without proper maintenance, as well as a number of shortcomings during the design and construction of bridges. In order to further mode optimization of repair plans development, the existing defects on the bridges were studied from the point of view of their impact on the further destruction of certain elements of the bridge, or the facility as a whole, on the acceleration of this process. Such defects have been identified as high risk defects.Results. Scientists of «DerzhdorNDI» SE have developed and applied the technique of repair cost determination by formation of works complex to eliminate existing defects at the inspected facilities. A module for bridge repair planning has been developed considering the need for priority elimination of high risk defects.Conclusions. The technique of repairs cost determination was developed, as well as the module for bridge repair planning considering the need for priority elimination of high risk defects.Keywords: highway bridge, Analytical Expert Bridge Management System (AESUM), repairs cost determination, defect on bridges.


Media Ekonomi ◽  
2019 ◽  
Vol 26 (2) ◽  
pp. 127
Author(s):  
Reza Aditama

<em>This research aims to look at the economic potential and determination of superior sectors in the eastern Java province of the north. <em>This research uses the Klassen Typology, Location Quotient, and Shift Share analysis with the help of Microsoft Excel 2013 analysis tool. The data used in this study are East Java Province GRDP Growth Rate, GRDP Growth Rate and GDP per capita in East Java Province in the period 2012 to 2016. <em>The results of the Klassen Typology analysis show that there are in quadrant 1, Bojonegoro district, 2 districts are in quadrant 3 namely Lamungan and Sumenep districts, and there are 5 districts in quadrant 4 namely Tuban district, Ngawi district, Bangkalan district, Sampang district, Sumenep district . In the LQ Analysis results are obtained about the sectors that become the base sector. The result is that Lamungan district has 10 base sectors, Bojonegoro district has 4 base sectors, Tuban district has 7 base sectors, Ngawi district has 5 base sectors, Bangkalan district has 6 base sectors, Sampang district has 4 base sectors, Pamekasan district has 8 sectors base, Sumenep district has 3 base sectors. Furthermore, from the Shift Share analysis, the results of the competitive sector and growing faster than the reference region, namely East Java, namely Lamungan district has 8 sectors, Bojonegoro district has 6 sectors, Tuban district has 7 sectors, Ngawi district has 7 sectors, Bangkalan district has 6 sectors , Sampang district has 7 sectors, Pamekasan district has 7 sectors, Sumenep district has 6 sectors.</em></em></em>


Author(s):  
Larysa Bodnar ◽  
Petro Koval ◽  
Sergii Stepanov ◽  
Liudmyla Panibratets

A significant part of Ukrainian bridges on public roads is operated for more than 30 years (94 %). At the same time, the traffic volume and the weight of vehicles has increased significantly. Insufficient level of bridges maintenance funding leads to the deterioration of their technical state. The ways to ensure reliable and safe operation of bridges are considered. The procedure for determining the predicted operational status of the elements and the bridge in general, which has a scientific novelty, is proposed. In the software complex, Analytical Expert Bridges Management System (AESUM), is a function that allows tracking the changes in the operational status of bridges both in Ukraine and in each region separately. The given algorithm of the procedure for determining the predicted state of the bridge using a degradation model is described using the Nassie-Schneidermann diagram. The model of the degradation of the bridge performance which is adopted in Ukraine as a normative one, and the algorithm for its adaptation to the AESUM program complex with the function to ensure the probabilistic predicted operating condition of the bridges in the automatic mode is presented. This makes it possible, even in case of unsatisfactory performance of surveys, to have the predicted lifetime of bridges at the required time. For each bridge element it is possible to determine the residual time of operation that will allow predict the state of the elements of the structure for a certain period of time in the future. Significant interest for specialists calls for the approaches to the development of orientated perspective plans for bridge inspection and monitoring of changes in the operational status of bridges for 2009-2018 in Ukraine. For the analysis of the state of the bridge economy, the information is available on the distribution of bridges by operating state related to the administrative significance of roads, by road categories and by materials of the structures. Determining the operating state of the bridge is an important condition for making the qualified decisions as regards its maintenance. The Analytical Expert Bridges Management System (AESUM) which is implemented in Ukraine, stores the data on the monitoring the status of bridges and performs the necessary procedures to maintain them in a reliable and safe operating condition. An important result of the work is the ability to determine the distribution of bridges on the public roads of Ukraine, according to operating conditions established in the program complex of AESUM, which is presented in accordance with the data of the current year. In conditions of limited funding and in case of unsatisfactory performance of surveys, it is possible to make the reasonable management decisions regarding the repair and the reconstruction of bridges. Keywords: bridge management system, operating condition, predicted operating condition, model of degradation, bridge survey plan, highway bridge.


2018 ◽  
Author(s):  
john andraos

We present a spreadsheet-assisted exercise using Microsoft Excel software for the<br>determination of the universal gas constant, R, in 35,712 different units. This large<br>number of units arises from a simple enumeration of possible pressure-volume unit<br>combinations and energy unit combinations covering SI (metric), Imperial (British), and<br>American units. In turn, various units for force and area used for defining pressure, and<br>various units for force and distance used for defining energy are explored. This<br>presentation serves as an excellent exercise for high school and undergraduate students to<br>master the skill of dimensional analysis, unit conversions, and basic combinatorics in<br>general chemistry and physical chemistry courses. Instructors can also use the described<br>exercise of constructing conversion matrices to train students in how to efficiently use the<br>Microsoft Excel spreadsheet program.


Author(s):  
P. Sarwanto

Among other obligations imposed under the forestry permit, watershed rehabilitation planting is perceived by the upstream oil and gas sector as the most complex challenge to conquer. Despite its poor track in fulfilling timeline and required result, there are also other challenges to consider, for instance lack of critical location, weather, fire, land tenure, community habit and capability, and cost optimization. In attempt to respond these challenges, an innovation in management system is constructed at PT Pertamina Hulu Mahakam, embracing and tailoring all related challenges, difficulties, and complexities, escalating the activity to be beyond compliance. So that it will be able to deliver more than merely avoid the identified potential risks towards company. The management system, called PIRAMIDA TINGGI (Pemberdayaan Masyarakat untuk Melestarikan Hutan di Dunia demi Ketahanan Energi Nasional), actively involves government, community, and business sector as equilateral triangle that work together to perform watershed rehabilitation planting. Developed using ISO 9001:2015 process approach namely PDCA (Plan-Do-Check-Act), the PIRAMIDA TINGGI system is in line as well with NAWACITA (President Joko Widodo’s vision, mission and program). To encounter other issue found during field work, this system is equipped as well with another innovation tool named PARIDA, a geospatial mobile-desk top-web application that easily able to map and identify vegetation in real time for further geo-analyzing multi-purposes, to be operated by local community. Full set implementation of this system has benefitted all parties. To Company in form of significant cost efficiency around 13.9 MUSD and 7 days’ faster result delivery besides obligation fulfillment, for others in form of broader advantage of proven sustainability project that has gave contribution to 5P (People, Planet, Prosperity, Partnership and Peace), objectives required by UN Sustainable Development Goals 2030.


2016 ◽  
Vol 2 (3) ◽  
pp. 515
Author(s):  
Luay Idrees Sarhan ◽  
Akeela M. Atroshi ◽  
Nawzat S. Ahmed

The strategic planning of developing any information system is the key factor of progress any organization. Hence, SWOT (Strength, weakness, opportunities and threats) analysis for the strategic planning of developing information system has proved to be a good analysis tool for further development and progress of the universities/organization. Further, the implementation of computerized student information management system has become an important issue within the university campus to exchange such information between students and staff. Many studies have developed student information system through the converting of paper-based system to computer-based system in order to facilitate the work of staff. However, none of these studies focused on the development of such systems based on the strategic planning using SWOT technique. Therefore, this research focuses on the requirements needed to develop student information system based on the aforementioned strategic planning technique. Some universities located in the Kurdistan Region, Iraq have been tacking to do the investigation. Moreover, SWOT technique was selected to find strengths, weaknesses, opportunities and threats of developing such system. The findings of this research were processed as matching strengths with opportunities and converting weaknesses or threats to strengths or opportunities. Based on the results, it has been found that the need to address student information systems is of utmost importance now more than ever in order to survive and continue in the competition environment.            


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