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Under the CAREC 2030 framework, a regional trade strategy will provide a more coherent approach to strengthen trade and enhance growth potential of CAREC countries. The CAREC Integrated Trade Agenda (CITA) 2030 aims to support CAREC countries in integrating further with the global economy through trade expansion from increased market access, greater diversification, and stronger institutions for trade. Taking into consideration the countries' capacities and varying levels of progress, CITA 2030 will be implemented in a phased and pragmatic approach including through a three-year rolling strategic action plan.
This publication shares lessons from performance-based road maintenance contracts implemented in Azerbaijan, Georgia, the Kyrgyz Republic, Mongolia, the People’s Republic of China, and Tajikistan. It outlines the contract scope, performance standards, inspections, response and reaction times, payments and deductions, and procurement and contract costs. The publication highlights learning from the different experiences and provides recommendations for future performance-based road maintenance contracts in these and other countries.
Road asset management is one of the top priorities of the Central Asia Regional Economic Cooperation (CAREC) Transport and Trade Facilitation Strategy 2020. The implementation of performance-based road maintenance contracts (PBCs)—an essential element of road asset management—promotes effective and efficient maintenance of road networks. Well-designed PBCs keep roads in predefined good condition at relatively low cost. This guide aims to help policy makers in CAREC member countries understand and implement PBCs. After a brief history of the development of PBCs, it discusses the various types of PBCs and their relative advantages and disadvantages. It highlights PBC implementation in selected developed, developing, and transitional countries, including CAREC member countries, to illustrate best practices.
"This synthesis examines current performance-based management practices that are applied by state departments of transportation (DOTs) in highway maintenance and operations (M&O). Past studies have focused on the elements that make up a performance-based M&O approach, such as condition ratings, levels of service, performance measures, and threshold values. This study focuses on how state DOTs actually use performance-based measures to manage their highway programs."--Preface.
The purpose of this manual is to provide clear and helpful information for maintaining gravel roads. Very little technical help is available to small agencies that are responsible for managing these roads. Gravel road maintenance has traditionally been "more of an art than a science" and very few formal standards exist. This manual contains guidelines to help answer the questions that arise concerning gravel road maintenance such as: What is enough surface crown? What is too much? What causes corrugation? The information is as nontechnical as possible without sacrificing clear guidelines and instructions on how to do the job right.
TRB's National Cooperative Highway Research Program (NCHRP) Report 668: Framework for a National Database System for Maintenance Actions on Highway Bridges explores a potential framework that provides a uniform format for collecting, reporting, and storing information on bridge maintenance actions for inclusion in a national bridge maintenance database. Appendixes A through E to NCHRP Report 668 provide detailed information on the different aspects of the research. Appendix A: Information on Bridge Maintenance Programs; Appendix B: National Bridge Maintenance Database Tables; Appendix C: List of Element Level Costs of Maintenance Actions; Appendix D: Examples of National Bridge Maintenance Database Uses; Appendix E: Other National Bridge Maintenance Database Tables--
This book gathers a selection of peer-reviewed papers presented at the International Conference on Operations Research (OR 2019), which was held at Technische Universität Dresden, Germany, on September 4-6, 2019, and was jointly organized by the German Operations Research Society (GOR) the Austrian Operations Research Society (ÖGOR), and the Swiss Operational Research Society (SOR/ASRO). More than 600 scientists, practitioners and students from mathematics, computer science, business/economics and related fields attended the conference and presented more than 400 papers in plenary presentations, parallel topic streams, as well as special award sessions. The respective papers discuss classical mathematical optimization, statistics and simulation techniques. These are complemented by computer science methods, and by tools for processing data, designing and implementing information systems. The book also examines recent advances in information technology, which allow big data volumes to be processed and enable real-time predictive and prescriptive business analytics to drive decisions and actions. Lastly, it includes problems modeled and treated while taking into account uncertainty, risk management, behavioral issues, etc.
Tajikistan is a landlocked country in Central Asia. Transport plays an essential role for ensuring connectivity and facilitating movement of goods and people within the country and along borders shared with its neighbors in the region. This publication provides an overview of the transport sector in Tajikistan, along with major development constraints, the government’s strategies and plans, and assistance provided by the Asian Development Bank (ADB) and other development partners. The publication serves as a basis for dialogues on ADB’s future collaboration with the Government of Tajikistan to promote the transport sector’s development effectively in the coming years.
This book gathers the proceedings of an international conference held at Empa (Swiss Federal Laboratories for materials Science and Technology) in Dübendorf, Switzerland, in July 2020. The conference series was established by the International Society of Maintenance and Rehabilitation of Transport Infrastructure (iSMARTi) for promoting and discussing state-of-the-art design, maintenance, rehabilitation and management of pavements. The inaugural conference was held at Mackenzie Presbyterian University in Sao Paulo, Brazil, in 2000. The series has steadily grown over the past 20 years, with installments hosted in various countries all over the world. The respective contributions share the latest insights from research and practice in the maintenance and rehabilitation of pavements, and discuss advanced materials, technologies and solutions for achieving an even more sustainable and environmentally friendly infrastructure.