scholarly journals Comparison of Concrete and Asphalt in Road Construction - Which is Better?

Author(s):  
Jonathan G. Ladignon

This Roads plays an important role in economic development and growth, as well as providing significant social benefits. They are critical to a country's growth and development. Furthermore, a road network is critical in the fight against poverty because it provides access to employment, social, health, and education services. Roads connect more people and places, promoting economic and social growth. As a result, road infrastructure is the most valuable of all public properties. Type of roads are being considered when constructing it, whether it is concrete reinforced or asphalt. Different factors are being considered in order to build an economical yet durable highways. This study is focused on comparing two types of roads and which one is best to use in terms of durability, life longevity, maintenance, cost and effect in environment; concrete or asphalt road. This study aims to help the government reduce cost but provide a durable, economical and environmentally friendly road to users.

2020 ◽  
Author(s):  
D.K.S. DINUSHKA ◽  
◽  
K.G.A.S. WAIDYASEKARA ◽  
K.G. DEWAGODA ◽  
◽  
...  

Even though Polymer Modified Bitumen (PMB) is being emerged as an alternative for conventional asphalt in the global context, the use of recycled plastics to produce PMB is still an unorthodox concept in Sri Lanka. Therefore, the study aimed at evaluating the applicability of recycled plastic as a construction material in road construction in Sri Lanka. The study apprehended a qualitative approach comprising a literature review, followed by twelve expert interviews. The data were analysed using manual content analysis. The economic, environmental, and social benefits and enablers along with social, technology-related, knowledge-related, economic, and resource-related barriers in implementing PMB in Sri Lanka were identified. Additionally, strategies to overcome such barriers were suggested. The study further recommends the use of recycled polymers over virgin polymers; increasing the awareness level in the industry; extending the government involvement; and establishing a standard specification.


2016 ◽  
Vol 845 ◽  
pp. 369-378 ◽  
Author(s):  
Andri Irfan Rifai ◽  
Sigit Pranowo Hadiwardoyo ◽  
António Gomes Correia ◽  
Paulo Pereira

National Road Network which consists of a traditional road structure and modern roads, require planned maintenance and should be in accordance with the needs. The limited choice of available national road network and the deviation of the overloading encourage the government to be more responsive to carry out maintenance management. The institution in charge of road maintenance is often constrained by the limited budget available. A two-objective optimization model considers maximum roughness and minimum maintenance cost for used road network with overload. The study was conducted on the entire national road network in West Java which are paved with flexible pavement. In the proposed approach, data mining model are used for predicting the roughness index over a given period of time. Routine and periodic maintenance are chosen in this study. Multi-objective optimization model was developed based on Genetic Algorithms. Budget constraints and overloading are the two constraints in the developed model. Based on the R-Tools result, the Pareto optimal solutions of the two objective functions are obtained. From the optimal solutions represented by roughness index and cost, an agency more easily obtain the information of the maintenance planning. Results of the developed model has been implemented through the selection of maintenance on the road network scenarios with different levels of overload.


1982 ◽  
Vol 21 (3) ◽  
pp. 231-244
Author(s):  
Mia A M. De Kuijper

In Pakistan the prices of petroleum products are set by the government, to raise revenues, stabilize prices, and achieve redistribution and social objectives. But in addition to these benefits, government31 taxes and subsidies for petroleum pro• ducts result in losses in economic efficiency through the misallocation of resources. How do the benefits compare with these losses? Are revenues raised in a manner that minimizes economic waste? Do the subsidies achieve equity or other social benefits at minimum cost?


Edupedia ◽  
2020 ◽  
Vol 5 (1) ◽  
pp. 45-53
Author(s):  
Ilzam Dhaifi

The world has been surprised by the emergence of a COVID 19 pandemic, was born in China, and widespread to various countries in the world. In Indonesia, the government issued several policies to break the COVID 19 pandemic chain, which also triggered some pro-cons in the midst of society. One of the policies government takes is the closure of learning access directly at school and moving the learning process from physical class to a virtual classroom or known as online learning. In the economic sector also affects the parents’ financial ability to provide sufficient funds to support the implementation of distance learning applied by the government. The implications of the distance education policy are of course the quality of learning, including the subjects of Islamic religious education, which is essentially aimed at planting knowledge, skills, and religious consciousness to form the character of the students. Online education must certainly be precise, in order to provide equal education services to all students, prepare teachers to master the technology, and seek the core learning of Islamic religious education can still be done well.


2021 ◽  
Vol 43 (2) ◽  
pp. 262-278
Author(s):  
Ariane Dupont-Kieffer ◽  
Sylvie Rivot ◽  
Jean-Loup Madre

The golden age of road demand modeling began in the 1950s and flourished in the 1960s in the face of major road construction needs. These macro models, as well as the econometrics and the data to be processed, were provided mainly by engineers. A division of tasks can be observed between the engineers in charge of estimating the flows within the network and the transport economists in charge of managing these flows once they are on the road network. Yet the inability to explain their decision-making processes and individual drives gave some room to economists to introduce economic analysis, so as to better understand individual or collective decisions between transport alternatives. Economists, in particular Daniel McFadden, began to offer methods to improve the measure of utility linked to transport and to inform the engineering approach. This paper explores the challenges to the boundaries between economics and engineering in road demand analysis.


2020 ◽  
Vol 10 (1) ◽  
pp. 8
Author(s):  
Sultan Alamri

In many developing cities, the improvement of transport infrastructure is usually accompanied by major road construction and maintenance. This paper presents approaches and opportunities using peer-to-peer updating to improve spatial road networks undergoing construction and maintenance, which in turn will improve traffic flow and benefit cities overall. In many cities, the spatial road network requires maintenance, and these works often require traffic detours. With the current GPS (Global Positioning System) services, there is a noticeable delay in the updating of many spatial road networks. Thus, when a driver plans a trip to a certain location (such as Starbucks), his/her usual route may have changed, but the spatial road network in the GPS has not been updated. This can affect the user in many ways. For example, a trip that usually takes five minutes might now take half an hour, taking into account the additional time required to find alternative roads and possibly encountering more unexpected road closures, until the driver reaches his/her destination. This paper addresses this issue by proposing solutions that offer several advantages including a new peer-to-peer updating mechanism that helps to direct the driver to another route when road changes occur. Moreover, the peer-to-peer updating mechanism can enable the independent monitoring of road conditions and the updating of maps for newly-constructed roads, as well as the analysis of road congestions, traffic density, and people movements at certain times. Note that this work focuses on the conceptual ideas and approaches intended to improve independent maps, and the detailed algorithms have been left for future work.


2016 ◽  
Vol 5 (4) ◽  
pp. 56
Author(s):  
Oyediran, Leye Sherifdeen ◽  
Sanni, Ibrahim ◽  
Adedoyin, Lukman ◽  
Oyewole Olabode Michael

The need to better the lots of citizens through government expenditure has raised questions on the impact of government expenditure on the economic development and growth of nations. It is against this background that this paper examined the antecedent effect of government spending on the Nigerian economic growth. The general objective of the study is to ascertain the relationship between government expenditure and economic growth in Nigeria; specifically, the study examined: (i) the significance influence of government capital expenditure on economic growth in Nigeria and (ii) the significance influence of government recurrent expenditure on economic growth in Nigeria. The study employed ordinary least square (OLS) multiple regression analysis in estimating the specified model, with the Gross Domestic Product (GDP) as the dependent variable, while Capital Expenditure (CAPEXP) and Recurrent Expenditure (REXP) are the independent variables. Data between 1980 – 2013 were collected from secondary sources through the National Bureau of Statistics (NBS) and Central Bank of Nigeria (CBN). Results showed that in Nigeria, there exist a significant relationship between the government expenditure and economic growth. The study therefore recommends instilling fiscal discipline in government expenditures, and putting in place structural mechanisms to act as surveillance on capital spending so as to boost the nation’s human and social capital.


2017 ◽  
Vol 13 (1) ◽  
pp. 21-39 ◽  
Author(s):  
David Tuwei ◽  
Melissa Tully

This research analyses Safaricom, one of the most established mobile operators in Kenya. Alongside the provision of mobile services, Safaricom has closely engaged with the government of Kenya, even getting involved in the nation’s politics. This study examines Safaricom’s advertisements from 2010-2014 to explore its use of national sentiment in its marketing. We argue that the ads reflect a commitment to promoting the country and its products through discourses of ‘commercial nationalism’, which present Safaricom as a driver of economic growth and development in Kenya. These discourses link Kenyan identity and distinctiveness to consumerism, commercial and economic success, profit and upward social mobility.


2015 ◽  
Vol 9 (1) ◽  
pp. 40
Author(s):  
Adham Indra Kusuma, Marjono, Fauziah S.C.S Maisarah

One attempt to create a good transport system is the construction of new roads toll roads. A toll road construction soon to be implemented is AA segment a which is of  investment oriented and expected to give profits to the investors. According to the plan, the toll road is 40.5 km long development is divided into 4 sections. Data required to perform financial analysis is the cost of investment, operation and maintenance cost, traffic volume, and the toll rate plans. These data to find the values of the parameters used to calculate the financial analysis include the Net Present Value (NPV), Internal Rate of Return (IRR), Benefit Cost Ratio (BCR), and Payback Period (PP). The financial analysis will use two funding alternatives, alternative I using 100% equity, alternative II using 30% equity and 70%  loan. The purpose of this study is to determine the results of the financial analysis of the parameter values of highway construction project feasibility and determine the most influential factors after a sensitivity analysis has been made. Based on the financial analysis the investment cost results in IDR 3,827,698,222,645. The financial analysis NPV parameters alternative I results in IDR 661,439,934,962 and alternative II in IDR 230,334,925,350 which means they are feasible because both NPVs are greater than 0; both the IRR of 14.18% for alternative I and 13.02% for alternative II are greater than Minimum Attractive Rate Of Return (MARR) value of 12.42%; so, they are feasible; the value of BCR of alternative I is of 1.13 and alternative II is of 1.04; so, they are feasible because the value of BCR is greater than 1. While the PP of alternative I in the period of 12.1 years and alternative II in the period of 13.5 years. The sensitivity analysis of alternatives I and II result in  the most influential alternative—when construction period experiences ≥ 3 years backwards.Keywords: investment cost, financial analysis, sensitivity analysis.


Author(s):  
Mersiha Imamović ◽  
Bego Omerčević

After the conquest of the Bosnian and Herzegovinian territory, the Romans  launched numerous campaigns so this region and its population could be incorporated into the Roman life and Roman civilization of that period as quickly as possible. They believed that this is the only and the best way to make themselves the masters of this region. As part of their extensive activities, those that focused on systematic and full implementation of urbanization in the present-day Bosnia and Herzegovina were especially important. This long process encompassed the infrastructure construction, modelled on the Italic cities, villages, economic and other facilities. The first steps of the Roman authorities were to construct modern and high-quality roads, i.e. a powerful road network that would facilitate a faster and stronger connection between settlements and economic resources around present-day Bosnia and Herzegovina. Publius Cornelius Dolabella, who served as an imperial governor of the province of Upper Illyria from 14 th  to 20  AD, had a special role in the implementation of this plan. The construction of the first roads began upon his initiative and under his strict supervision. He intended to establish a better connection between the regions of present-day Bosnia and Herzegovina with the eastern coast of the Adriatic Sea. These first roads created good foundation for a complete urbanization of this area. th Along with the road construction, the Romans launched the activities that included new settlements, firstly along the Roman roads, then at the crossroads, and then in the regions had were rich in resources. Each settlement, in its appearance, dimensions and layout of facilities and its infrastructure, had to correspond to the Roman building standards. The first settlements were built along the roads. The most famous sites of urban settlements include: Grkovci and Pelva (Livno plateau), Halapići and Salvium (Glamoč plateau), Pecka (the Sana river valley), Baloie (Šipovo), Bjelajac (Mrkonjić Grad), Castra, Laktaši, Gornji Šeher (Banja Luka), Servitium (Bosanska Gradiška), Delminium (Duvno plateau), Varvara (Rama river valley), Ad Matricem (Gornji Vakuf), Bistue Nova (Bugojno), Višnjica (Kiseljak), Ilidža (Sarajevo plateau), Domavia and Skelani (central Podrinje), Blagaj, Maslovare and Bosanski Novi (the Sana and Japra rivers valley), Golubić (Bihać), Bigeste (Čapljina), Leusinium (Bileća), Diluntum (Stolac), Ad Drinum (Drinjača) as well as many others, but less known.  Urbanization had many positive effects in all aspects of work and life of local inhabitants from that period in the region of present-day Bosnia and Herzegovina. A road network was established, as well as numerous economic activities, lifestyle standard and social relations were raised to a significantly higher level, many settlements (cities and villages) and many cultural monuments were built.  


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