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Author: Atsushi Iimi
Publisher:
ISBN:
Category :
Languages : en
Pages : 27
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Book Description
Procurement packaging has important effects on not only the bidders' bidding behavior, but also contractors' performance. By changing the size of public contracts, procurers can encourage (or discourage) market competition and improve contract performance, avoiding unnecessary cost overruns and project delays. In practice, there is no single solution about how to package public contracts. With procurement data from road projects in Nepal, this paper examines the optimal size of road contracts in rural areas. The optimum varies depending on policy objectives. To maximize the bidder participation, the length of road should be about 11 kilometers. To minimize cost overruns and delays, the contracts should be much larger at 17 and 21 kilometers, respectively. Compared with the current procurement practices, the findings suggest that procurers take more advantage of enlarging road packages, although contracts that are too large may increase the risk of discouraging firms from participating in public tenders.
Author: Atsushi Iimi
Publisher:
ISBN:
Category :
Languages : en
Pages : 27
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Book Description
Procurement packaging has important effects on not only the bidders' bidding behavior, but also contractors' performance. By changing the size of public contracts, procurers can encourage (or discourage) market competition and improve contract performance, avoiding unnecessary cost overruns and project delays. In practice, there is no single solution about how to package public contracts. With procurement data from road projects in Nepal, this paper examines the optimal size of road contracts in rural areas. The optimum varies depending on policy objectives. To maximize the bidder participation, the length of road should be about 11 kilometers. To minimize cost overruns and delays, the contracts should be much larger at 17 and 21 kilometers, respectively. Compared with the current procurement practices, the findings suggest that procurers take more advantage of enlarging road packages, although contracts that are too large may increase the risk of discouraging firms from participating in public tenders.
Author: Yi Jiang
Publisher: Purdue University Press
ISBN: 9781622600564
Category : Transportation
Languages : en
Pages : 114
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Book Description
This study was conducted to develop methodologies for appropriately determining the monetary values of I/D rates of highway construction projects in Indiana. In this study, a comprehensive literature review was performed to identify possible effective methodologies for work zone effects, construction impacts, and contract time optimization. The highway production rates were developed in a previous study. The production rates were validated and adjusted with the help from INDOT field engineers. The weigh-in-motion (WIM) collected traffic data were obtained, processed, and analyzed to provide input data for user cost calculations at highway work zones. Construction data were obtained and processed to develop the relationship between the construction cost and construction time. With the traffic and construction data, the methods for user cost calculations were developed as the basis of determining appropriate I/D rates. User costs resulting from traffic delays at Indiana highway work zones were analyzed. A series of equations for estimating user costs at work zones were developed. User cost calculation sheets using MS Excel were developed based on the traffic data on Indiana highway network. Finally, a method was developed to determine I/D rates based on the relationship between construction cost and construction time in combination with the estimated user costs at given work zones. Guidelines for developing A+B bidding and I/D provisions were provided.
Author: Asian Development Bank
Publisher: Asian Development Bank
ISBN: 9292611097
Category : Technology & Engineering
Languages : en
Pages : 165
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Book Description
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.
Author: J. Greg Jones
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 20
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Book Description
Author:
Publisher:
ISBN:
Category : Highway research
Languages : en
Pages : 44
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Book Description
Author: National Research Council (U.S.). Committee on Highway Laws
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 156
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Book Description
Statutory law is reviewed relating specifically to public contracts. capacity to contract is a basic requirement to any agreement. regarding state highway contracts, the legislatures of every state and the District of Columbia and Puerto Rico have granted some specific department, board or commission the authority to contract in this field. Statutory requirements are detailed in many cases stating the specific person or persons who must execute or approve the contracts, and other conditions which must be met in order to have a valid contract.
Author: Manal Fouad
Publisher: International Monetary Fund
ISBN: 1513576569
Category : Business & Economics
Languages : en
Pages : 61
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Book Description
Investment in infrastructure can be a driving force of the economic recovery in the aftermath of the COVID-19 pandemic in the context of shrinking fiscal space. Public-private partnerships (PPP) bring a promise of efficiency when carefully designed and managed, to avoid creating unnecessary fiscal risks. But fiscal illusions prevent an understanding the sources of fiscal risks, which arise in all infrastructure projects, and that in PPPs present specific characteristics that need to be addressed. PPP contracts are also affected by implicit fiscal risks when they are poorly designed, particularly when a government signs a PPP contract for a project with no financial sustainability. This paper reviews the advantages and inconveniences of PPPs, discusses the fiscal illusions affecting them, identifies a diversity of fiscal risks, and presents the essentials of PPP fiscal risk management.
Author: Timothy R. B. Taylor
Publisher:
ISBN: 9780309389846
Category : Construction contracts
Languages : en
Pages : 63
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Book Description
Establishing contract time is an important part of the highway project development process. Contract time directly impacts project costs, the public, and risk for contractors. This synthesis documents current methodologies and procedures used in state transportation agencies to estimate contract time for various highway project delivery methods. Information used in this study was gathered through a literature review and a survey of state transportation agencies. Follow-up interviews with selected agencies provided additional information. Timothy R.B. Taylor, Roy E. Sturgill, Jr., and Ying Li, University of Kentucky, Lexington, collected and synthesized the information and wrote the report. The members of the topic panel are acknowledged on the preceding page. This synthesis is an immediately useful document that records the practices that were acceptable within the limitations of the knowledge available at the time of its preparation. As progress in research and practice continues, new knowledge will be added to that now at hand."--PDF page 5.
Author:
Publisher:
ISBN:
Category : Roads
Languages : en
Pages : 848
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Book Description
Author: Chris Donnges
Publisher:
ISBN:
Category : Rural roads
Languages : en
Pages : 120
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Book Description
Provides an analysis of rural road maintenance in the Asian region.
