Publication: Surfacing Alternatives for Unsealed Rural Roads
Loading...
Published
2006-05
ISSN
Date
2012-08-13
Editor(s)
Abstract
Despite extensive road construction programs over the last century, a substantial proportion of roads remained unsealed especially in developing and emerging economies. As these economies develop, the demand arises to seal previously unsealed roads. The most economical transition point between unsealed and sealed roads depends on many conditions that need to be evaluated. The purpose of this Note is to provide guidance for decision makers, engineers and administrators on selecting the most appropriate surface for unsealed road given the prevailing conditions. It is based on the report "Surfacing Alternatives for Unsealed Roads" (report 37192).
Link to Data Set
Citation
“Henning, Theuns; Kadar, Peter; Bennett, Christopher R.. 2006. Surfacing Alternatives for Unsealed Rural Roads. Transport Notes Series; No. TRN 33. © World Bank. http://hdl.handle.net/10986/11775 License: CC BY 3.0 IGO.”
Digital Object Identifier
Associated URLs
Associated content
Other publications in this report series
Journal
Journal Volume
Journal Issue
Collections
Related items
Showing items related by metadata.
Publication Rethinking Infrastructure Delivery: Case Study of a Green, Inclusive, and Cost-effective Road Program in Nicaragua(World Bank, Washington, DC, 2014-06)This paper presents a development case study on alternative thinking in rural infrastructure delivery. Delivery in this case is achieved in a manner that advances the green growth, social inclusion and cost-effectiveness agendas. The need for green and inclusive approaches in reaching development goals cannot be overstated. At the same time, the use of public funds should ensure value for money and stretch government resources as far as they can go. Inclusion refers to the empowerment of all citizens to participate in, and benefit from the development process, removing barriers against those who are often excluded. The use of a community development approach is presented in this paper to demonstrate how this has been achieved on large scale and in a cost-effective way without compromising quality or timing. Heightened roles and responsibilities are conferred to the local target authorities and populations in this infrastructure delivery approach, and this experience is presented as a best practice that could be emulated in similar development work. On the technical front, most road infrastructure delivery in many countries is heavily mechanized and undertaken using default asphalt surfacing. This paper presents the adoption of an alternative and green paving material that is also cost-effective at the secondary rural road level.Publication Quantifying the Impacts of Vehicle-Generated Dust(World Bank, Washington, DC, 2011)This project can be considered to be an initial process leading to the ultimate objective of identifying and assigning costs associated with the impacts of vehicle-generated dust so that the benefits can be quantified, if these impacts are ameliorated through actions such as the provision of a sealed road surface. The report outlines the background to the project, the results of the review process, describes the need for a comprehensive approach and identifies and provides some provisional estimates the possible impacts of traffic generated dust on road safety, health, agriculture and the environment. The objectives of the project, the achievements made, the problems encountered and the findings to date are described. The report outlines the overall approach that has been undertaken to achieve the stated aims of the project in relation to the available data. The outcomes from discussions with prospective developing country partners are reported together with the results of correspondence and discussions with other professionals. Recommendations and conclusions are made on the work undertaken to date. An outline methodology and terms of reference are provided for a follow-up study.Publication Applying the HDM-4 Model to Strategic Planning of Road Works(World Bank, Washington, DC, 2008-09)The Highway Development and Management Model (HDM-4) is a software system for evaluating options for investing in road transport infrastructure. Worldwide, the HDM-4 model is most commonly used as a basis for feasibility studies, in which a road project is evaluated in terms of its economic viability. A more comprehensive type of evaluation based on HDM-4 is a network evaluation, which assesses an entire road network to help decision makers in their strategic planning of road investments and/or the definition of a rational road works program, with or without budget constraints. A network economic evaluation is the most challenging use of the model, but the effort is well justified given the potential savings to be achieved on transport costs by comparing various project alternatives and performing an optimization under budget constraints. This technical note presents the author's experience applying HDM-4 and its predecessor, the Highway Design and Maintenance Standards Model (HDM-III), to road network strategic planning evaluations in developing countries, with the objective of providing recommendations and tools to the readers who are involved in strategic planning activities. The purpose of the evaluations, the methodology itself, the input requirements, the challenges, and the presentation of results to decision makers are each reviewed in turn.Publication Investigation and Analysis of Natural Hazard Impacts on Linear Infrastructure in Southern Kyrgyzstan : Desk and Field Studies Report(Washington, DC, 2008-12)This report presents the findings of a study of geohazards along 850 km of roads in Southern Kyrgyzstan (KG) and their potential impact on road rehabilitation projects throughout the country. This report presents the findings of a short "fact finding" study on geological hazards (or geohazards) as they relate to ongoing and future planned road rehabilitation projects throughout KG and provides recommendations on activities that could be carried out in KG over the coming years in order to utilize the expertise and data available in country in order to facilitate and improve road design and monitoring/mitigation of geohazard impacts. Section two provides an introduction to the report and section three provides background information behind the study, the objectives and a brief description of the scope of work. Section four describes geohazards in general and details those specifically threatening road developments in KG. Section five describes current road design practices and codes and standards within KG while. Section six discussed briefly the potential economic consequences of geohazards on major roads in KG. Section seven discusses geohard design, mitigation and monitoring of geohazards and presents two examples of detailed geohazard assessment and design and construction techniques developed in other countries. Sections eight and nine present the conclusions and recommendations arising from the study. References are listed in section ten.Publication Improving the Sustainability of Road Management and Financing in Armenia(World Bank, 2011-10-13)The objectives of this study are: 1) to identify weaknesses and challenges confronting the sustainability of road maintenance and rehabilitation management; 2) to determine to what extent these are linked to particular institutional and financing arrangements; and 3) to assess how these factors can be resolved. The Study makes a series of recommendations aimed at improving the sustainability of the management and financing of the road sector. First, the study provides an overview of the road sector and the condition of the road network. Then it turns to a review of road management and financing in Georgia. The study reviews the current institutional and technical arrangements, with regard to the ability to effectively plan, design, construct, and maintain the road network. It gives particular emphasis to the implementation arrangements for the road sector, including: budgeting; management and resources; technical standards in use; quality assurance and education/training; and provision of maintenance for different road classes. The findings of the study are timely. It is hoped that they will inform a policy discussion on the need to raise expenditures on the maintenance of the road network, and provide a roadmap for financing these needs in an efficient, cost-effective manner.
Users also downloaded
Showing related downloaded files
Publication World Development Report 2006(Washington, DC, 2005)This year’s Word Development Report (WDR), the twenty-eighth, looks at the role of equity in the development process. It defines equity in terms of two basic principles. The first is equal opportunities: that a person’s chances in life should be determined by his or her talents and efforts, rather than by pre-determined circumstances such as race, gender, social or family background. The second principle is the avoidance of extreme deprivation in outcomes, particularly in health, education and consumption levels. This principle thus includes the objective of poverty reduction. The report’s main message is that, in the long run, the pursuit of equity and the pursuit of economic prosperity are complementary. In addition to detailed chapters exploring these and related issues, the Report contains selected data from the World Development Indicators 2005‹an appendix of economic and social data for over 200 countries. This Report offers practical insights for policymakers, executives, scholars, and all those with an interest in economic development.Publication Classroom Assessment to Support Foundational Literacy(Washington, DC: World Bank, 2025-03-21)This document focuses primarily on how classroom assessment activities can measure students’ literacy skills as they progress along a learning trajectory towards reading fluently and with comprehension by the end of primary school grades. The document addresses considerations regarding the design and implementation of early grade reading classroom assessment, provides examples of assessment activities from a variety of countries and contexts, and discusses the importance of incorporating classroom assessment practices into teacher training and professional development opportunities for teachers. The structure of the document is as follows. The first section presents definitions and addresses basic questions on classroom assessment. Section 2 covers the intersection between assessment and early grade reading by discussing how learning assessment can measure early grade reading skills following the reading learning trajectory. Section 3 compares some of the most common early grade literacy assessment tools with respect to the early grade reading skills and developmental phases. Section 4 of the document addresses teacher training considerations in developing, scoring, and using early grade reading assessment. Additional issues in assessing reading skills in the classroom and using assessment results to improve teaching and learning are reviewed in section 5. Throughout the document, country cases are presented to demonstrate how assessment activities can be implemented in the classroom in different contexts.Publication World Development Report 2011(World Bank, 2011)The 2011 World development report looks across disciplines and experiences drawn from around the world to offer some ideas and practical recommendations on how to move beyond conflict and fragility and secure development. The key messages are important for all countries-low, middle, and high income-as well as for regional and global institutions: first, institutional legitimacy is the key to stability. When state institutions do not adequately protect citizens, guard against corruption, or provide access to justice; when markets do not provide job opportunities; or when communities have lost social cohesion-the likelihood of violent conflict increases. Second, investing in citizen security, justice, and jobs is essential to reducing violence. But there are major structural gaps in our collective capabilities to support these areas. Third, confronting this challenge effectively means that institutions need to change. International agencies and partners from other countries must adapt procedures so they can respond with agility and speed, a longer-term perspective, and greater staying power. Fourth, need to adopt a layered approach. Some problems can be addressed at the country level, but others need to be addressed at a regional level, such as developing markets that integrate insecure areas and pooling resources for building capacity Fifth, in adopting these approaches, need to be aware that the global landscape is changing. Regional institutions and middle income countries are playing a larger role. This means should pay more attention to south-south and south-north exchanges, and to the recent transition experiences of middle income countries.Publication Digital Africa(Washington, DC: World Bank, 2023-03-13)All African countries need better and more jobs for their growing populations. "Digital Africa: Technological Transformation for Jobs" shows that broader use of productivity-enhancing, digital technologies by enterprises and households is imperative to generate such jobs, including for lower-skilled people. At the same time, it can support not only countries’ short-term objective of postpandemic economic recovery but also their vision of economic transformation with more inclusive growth. These outcomes are not automatic, however. Mobile internet availability has increased throughout the continent in recent years, but Africa’s uptake gap is the highest in the world. Areas with at least 3G mobile internet service now cover 84 percent of Africa’s population, but only 22 percent uses such services. And the average African business lags in the use of smartphones and computers as well as more sophisticated digital technologies that catalyze further productivity gains. Two issues explain the usage gap: affordability of these new technologies and willingness to use them. For the 40 percent of Africans below the extreme poverty line, mobile data plans alone would cost one-third of their incomes—in addition to the price of access devices, apps, and electricity. Data plans for small- and medium-size businesses are also more expensive than in other regions. Moreover, shortcomings in the quality of internet services—and in the supply of attractive, skills-appropriate apps that promote entrepreneurship and raise earnings—dampen people’s willingness to use them. For those countries already using these technologies, the development payoffs are significant. New empirical studies for this report add to the rapidly growing evidence that mobile internet availability directly raises enterprise productivity, increases jobs, and reduces poverty throughout Africa. To realize these and other benefits more widely, Africa’s countries must implement complementary and mutually reinforcing policies to strengthen both consumers’ ability to pay and willingness to use digital technologies. These interventions must prioritize productive use to generate large numbers of inclusive jobs in a region poised to benefit from a massive, youthful workforce—one projected to become the world’s largest by the end of this century.Publication Doing Business 2014 : Understanding Regulations for Small and Medium-Size Enterprises(Washington, DC: World Bank Group, 2013-10-28)Eleventh in a series of annual reports comparing business regulation in 185 economies, Doing Business 2014 measures regulations affecting 11 areas of everyday business activity: Starting a business, Dealing with construction permits, Getting electricity, Registering property, Getting credit, Protecting investors, Paying taxes, Trading across borders, Enforcing contracts, Closing a business, Employing workers. The report updates all indicators as of June 1, 2013, ranks economies on their overall “ease of doing business”, and analyzes reforms to business regulation – identifying which economies are strengthening their business environment the most. The Doing Business reports illustrate how reforms in business regulations are being used to analyze economic outcomes for domestic entrepreneurs and for the wider economy. Doing Business is a flagship product by the World Bank and IFC that garners worldwide attention on regulatory barriers to entrepreneurship. More than 60 economies use the Doing Business indicators to shape reform agendas and monitor improvements on the ground. In addition, the Doing Business data has generated over 870 articles in peer-reviewed academic journals since its inception.